No Spark
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=46774
Printed Date: April-27-2024 at 2:56pm
Topic: No Spark
Posted By: 63 Skier
Subject: No Spark
Date Posted: September-03-2018 at 12:44am
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Well just a day after I posted on another thread that my boats were running well, I have a problem. My '63 has no spark, Buick V6 Sabre, all original. I thought I had narrowed it to a bad coil, but took it off the boat and with a meter the primary and secondary coils ohm out as good. On the boat I have 12 v when I go from negative and positive sides of the coil to ground, but I'm getting no spark from coil high voltage side to ground nor at distributor or spark plugs. This is the first time the boat has been run in quite a while, but it was put away in running order. Thoughts? ------------- '63 American Skier - '98 Sport Nautique |
Replies:
Posted By: 63 Skier
Date Posted: September-03-2018 at 1:02am
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I should add the distributor innards look perfectly clean, points opening properly though I didn't put my dwell meter on it yet. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: KENO
Date Posted: September-03-2018 at 8:05am
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Hi Dave Your voltage readings are saying that the points are open. Don't know if the 12 volts negative to ground was with the engine rotating or sitting still. If it was sitting still, it just means the points are open If it was rotating and the points were opening and closing, you should see a repeating fluctuation from your 12 down to 0 and back to 12 as they open and close. They may look good and have a little corrosion preventing them from closing "electrically" Your dwell meter will tell you if they're electrically opening and closing Running a little piece of sandpaper between the points may do wonders 
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Posted By: 8122pbrainard
Date Posted: September-03-2018 at 9:53am
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Dave, I still have one of these. I'll bet Ken has several.   Note that some abrasive paper works too. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: Gary S
Date Posted: September-03-2018 at 11:21am
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Sandpaper and point files are great to see if you can get it running but once you do plan on replacing them. Modern point sets are plated and if being used are most likely pitted anyway ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: 63 Skier
Date Posted: September-03-2018 at 12:23pm
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Thanks gentlemen. I will be back at the boat in a few hours and will report back after cleaning up the points a bit, I don't have a file but some fine sandpaper will do. I have to say, I was fairly fixated on it being a wiring issue, then a bad coil, that once I saw the points were opening and all looked clean it didn't occur to me to clean them up. Good thing I have you guys to do some thinking for me! Fingers crossed ...... ------------- '63 American Skier - '98 Sport Nautique |
Posted By: 8122pbrainard
Date Posted: September-03-2018 at 12:29pm
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Dave, To confirm, before you clean up the contacts, disconnect the negative wire to the coil, rotate the engine so they are closed and get an Ohm reading across the contacts. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: tjs1295
Date Posted: September-03-2018 at 1:07pm
Just use one of your other three boats. 
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Posted By: 63 Skier
Date Posted: September-03-2018 at 8:29pm
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Success! And, a fun afternoon in the boat. A combination of things, you guys were right on the points needing to be sanded, also had to adjust dwell, dried out plugs and cleaned them up, I changed out the coil and appeared to have a stronger spark with the new one. I'll put new points in next week and check timing, just wanted to get on the water today. Thank you! ------------- '63 American Skier - '98 Sport Nautique |
Posted By: KENO
Date Posted: September-03-2018 at 8:40pm
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I hope you were thinking about Pete while you were playing with your points If you have some prehistoric points like Pete, ( that's the points I'm talking about, not Pete} you're probably just as well off with the cleaning job as compared to a new set that aren't usually very good these days like Gary mentioned. |
Posted By: 63 Skier
Date Posted: September-04-2018 at 12:42am
Tom, I chuckled when I read that! Just shows that I jinxed myself when I said that on the other thread. Funny thing is it was suggested I just bring my '98 to the lake but I don't like to give up so wanted to have the '63 running. ------------- '63 American Skier - '98 Sport Nautique |
tjs1295 wrote:Posted By: 63 Skier
Date Posted: September-04-2018 at 12:54am
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Just a few more details, because I like to give feedback when I get advice and was typing on my phone earlier. Pete, I did check resistance across the points before I did anything, they were not conducting at all. Cleaned them up gently, had no resistance on the meter but after some more struggles ended up cleaning them a bit more aggressively. So that was the core problem. Dwell was around 22-25 degrees, adjusted it to 30. By the time I was again trying to start the engine had flooded, plugs were wet, I pulled all of them, dried them off, cleaned up the electrodes, spun the engine with the starter to air out the cylinders a bit, left things open for another half hour, then reinstalled plugs and it fired right up. On the coil - I guess I don't know for sure the old one was bad, but spark visually looked stronger with the new one so I went with it. When I tested the old coil last night I had around 1 1/2 ohms on the primary circuit and I think just under 6,000 ohms on the secondary. For $39 for the new coil I figured why think about it for very long. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: 8122pbrainard
Date Posted: September-04-2018 at 7:06am
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Dave, I'm glad you found the problem and thanks for getting back with the results. Yes, it's always great to hear back. How long had the engine been sitting for the points to corrode up? I've had them go for years of layups without issues and then sometimes one winter layup will do it. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 63 Skier
Date Posted: September-04-2018 at 11:04am
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It's been years since I ran it, but we were discussing and can't remember how many. Maybe 4? I've meant to get it out but in truth one of the other boats almost always makes more sense, so it sits. I was really happy to be out in it yesterday, the thing still runs extremely well, sounds great. While of course I'd much prefer to turn the key and have it start right up, it was fun to be in the yard working on it, my siblings helped out a bit, then our neighbor came over to offer his 2 cents. His dad bought it new and I bought it from him around 1980, so everyone feels a bit connected to the boat and loves to see it still running strong. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: 63 Skier
Date Posted: September-06-2018 at 1:54am
    ------------- '63 American Skier - '98 Sport Nautique |
Posted By: samudj01
Date Posted: October-06-2018 at 10:25am
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Having a similar issue. Trouble shot it with Zach on the phone yesterday. Thinks the points are constantly grounding out. There is nice gap and the boat ran fine all summer. Was also wet in there. Dried it out well. And tried again this morning and nothing. I have gas in the carb. Anyone know what points my distributor would have. Heading to advance auto in a bit. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: October-06-2018 at 11:19am
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Dave Here's a link to an old post with a bunch of part numbers for the points from different manufacturers. They'll be able to cross reference something and probably not have anything in stock. A NAPA might have something in stock.............maybe A little sandpaper might do wonders though. And if you keep reading you'll see some good ole' fashioned bickering about condensers too http://www.correctcraftfan.com/forum/forum_posts.asp?TID=12345&title=prestolite-points" rel="nofollow - link |
Posted By: Gary S
Date Posted: October-06-2018 at 11:59am
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Napa might have something,mine in Florida did. But it took two tries,first time I didn't even make it out of the canal before the condenser failed. 2nd time was the charm and is still in there. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: 63 Skier
Date Posted: October-06-2018 at 3:41pm
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Definitely sounds similar to my problem, and refreshing the surface on my points and resetting dwell was the cure. One final item on my boat ..... I found that it was starting hard on cold starts, particularly after damp weather. The plug wires were old and looking closer could see they were cracked in places, I replaced them and instantly had stronger spark and now cold starts are fine. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: samudj01
Date Posted: October-07-2018 at 10:19am
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Thanks for the help. Made the rounds to 4 auto parts stores yesterday. Oreilly was the winner with points. Came back to lake and popped them in and a new condenser. Set gap and got lucky on first try. Started up and ran like a top yesterday afternoon. Fingers crossed this morning. Will check dwell when I have a meter. Gaped to .017 with a feeler. Thanks also to Zach and Tim for some troubleshooting. Skied Larry, Joel and myself yesterday and got up to ~45 with 2 in the boat. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: 8122pbrainard
Date Posted: October-07-2018 at 11:07am
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David, Did you try to clean up the point contact faces with abrasive paper or a file? Dave didn't need to go to 4 auto parts stores after he cleaned them up! If it happens again, get the VOM out and Ohm out the points. You will want to disconnect the - wire off the coil, rotate the engine so the point set is closed and then Ohm between the wire off the coil and ground. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: phatsat67
Date Posted: October-07-2018 at 11:43am
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He did Pete. His points set had started transferring electricity via the pivot point so no amount of cleaning would fix that issue. Now David has a really nice understanding of how a points ignition system operates. |
Posted By: 8122pbrainard
Date Posted: October-07-2018 at 12:09pm
Yes, a little testing goes a long way and you avoid just throwing parts at a unconfirmed problem. I remember a Prestolite that was giving me problems. They use a machine screw through the side of the distributor body that the point set and the - wire are connected to. The screw has insulating washers and a bushing to keep the screw from grounding to the body. The bushing was out of position so the coil was constantly grounded. The VOM told the truth!!! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: phatsat67
Date Posted: October-07-2018 at 1:53pm
| Ha, I believe the points Mallory distributors are set up with the pass through stud and insulators. |
Posted By: KENO
Date Posted: October-07-2018 at 8:47pm
I'll second that Ha And............I won't even ask how ugly those points would have to be to conduct thru the center pivot. |
Posted By: samudj01
Date Posted: October-08-2018 at 12:54am
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Guess we need a pic of the old points. Tomorrow I’ll be back a computer to post one. And I did lightly sand them with 220 before phoning a friend. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: jbear
Date Posted: October-08-2018 at 1:19am
confirmed...the 2 in the boat were me and Gene Monahan. I even got to drive...for about 500 yards.... john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: Air206
Date Posted: October-08-2018 at 2:06am
It happened........... https://i.imgur.com/g7tVxMM.jpg%20" rel="nofollow">   https://i.imgur.com/g7tVxMM.jpg%20" rel="nofollow - Click For Full-Size Image .https://i.imgur.com/W57A1vy.jpg%20" rel="nofollow">  https://i.imgur.com/W57A1vy.jpg%20" rel="nofollow - Click For Full-Size Image .------------- https://tinyurl.com/y6t5e3bu" rel="nofollow - 04 Air206 http://tinyurl.com/9urzgls" rel="nofollow - 91 Barefoot 78 SkiTiq |
Posted By: samudj01
Date Posted: October-09-2018 at 1:01am
 ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: October-09-2018 at 1:32am
I guess Zach will have to explain how they were conducting thru the center post/pivot point
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Posted By: 8122pbrainard
Date Posted: October-09-2018 at 6:45am
Yes Zach, tell us more. Is the insulating pivot point bushing worn through? Can't tell from the picture. ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: phatsat67
Date Posted: October-09-2018 at 9:53am
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No clue but that is what I was assuming. He was getting continuity on both sides of the points while they were open. That's about the only way it could be jumping across. I had him disconnect the condenser from the points plate to take a ground via that out of the equation. (I was diagnosing by phone) |
Posted By: TRBenj
Date Posted: October-09-2018 at 12:50pm
| Plenty of parts in close proximity where the 2 sides of the points could be touching (besides the pivot). Either way, if the 2 sides aren’t isolated then they’re junk. |
Posted By: phatsat67
Date Posted: October-09-2018 at 12:53pm
| RUNS GREAT |
Posted By: 75 Tique
Date Posted: October-09-2018 at 1:37pm
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I was the first test pull after the fix, yup, runs great. ------------- _____________ “So, how was your weekend?” “Well, let me see…sun burn, stiff neck, screwed up back, assorted aches and pains….yup, my weekend was great, thanks for asking.” |
Posted By: KENO
Date Posted: October-09-2018 at 2:11pm
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So............let's see, if you have points, you should carry a spare set and a condenser too since you never know what might happen with these hi tech mechanical things Imagine that |
Posted By: Gary S
Date Posted: October-09-2018 at 2:23pm
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Should you carry 2 sets? what if one is bad out of the box? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Posted By: samudj01
Date Posted: October-09-2018 at 3:11pm
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I was going to happily buy an extra but I got the only set within 20mi of Badin Lake. Will have to find another set or two ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: phatsat67
Date Posted: October-09-2018 at 3:45pm
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Point is, points be easy. "My boat was running rough so I did an electronic conversion. Still runs rough. " |
Posted By: 63 Skier
Date Posted: October-09-2018 at 5:44pm
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Mine is running well too. No spare points on hand! ------------- '63 American Skier - '98 Sport Nautique |
Posted By: phatsat67
Date Posted: October-09-2018 at 6:23pm
| Spare race gas. |
Posted By: 8122pbrainard
Date Posted: October-09-2018 at 6:36pm
I guess now after the 40 odd years I've been running points in the X55 and the Atom, I need to make a trip to the auto supply!! Thankfully I have that EI conversion thing in the Tique. That will never give out! ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: 63 Skier
Date Posted: October-09-2018 at 7:36pm
No, I carry jet fuel. I did feel a little silly posting the video with the gas container in the back, not to mention my foolish face in all of it, but I was alone with nobody to video for me. I was burning off as much gas as I could so carried the can in case I ran out. ------------- '63 American Skier - '98 Sport Nautique |
Posted By: KENO
Date Posted: October-09-2018 at 11:42pm
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I'm kinda curious what your ohm reading was when the points were open Dave. Was it zero or maybe some higher number like 15 or 20 ohms for example but nowhere near infinity? |
Posted By: samudj01
Date Posted: October-09-2018 at 11:51pm
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Did not test that. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: October-09-2018 at 11:55pm
What Zach said above is what I was wondering about |
Posted By: KENO
Date Posted: October-10-2018 at 11:51am
Did you have Dave disconnect the distributor wire from negative side of the coil like Pete mentioned when checking the points resistance? If you don't do this, your troubleshooting is gonna give you some funny readings with the points open. They won't be infinity like you'd expect and they'll show around 15 ohms depending on the coil.. And then you'll think funny things like they're conducting across the center post. Now if you disconnect the coil negative and do the same thing you'll get accurate results For anybody that doesn't believe this, then give it a try on your points system before saying something like "that can't be" I learned that from a book called "Pete's pointers on perfecting the performance of your prehistoric but still pretty dependable points system" And verified it with some real world testing on a good running points system this morning Now I gotta go visit the shrink because I'm agreeing with Pete again
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Posted By: phatsat67
Date Posted: October-10-2018 at 2:35pm
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Yes, first thing to do when checking points is disconnect negative and check for voltage changes while cranking. The points were bad and conducting on the non grounded side. New points = runny good. I didn't have him check an Ohm reading with points open. He was just showing voltage on both sides so that's all you really need to know. |
Posted By: KENO
Date Posted: October-10-2018 at 3:04pm
Maybe something is getting lost in the translation here trying to talk via posts nbut if you're checking the coil negative with the black wire off off it, you'll see no voltage change while cranking And if you're checking the black wire while it's disconnected and you're cranking you'll see no volts at all. Go try it I just did Not saying his points were good, just not agreeing with your troubleshoot but that OK. |
Posted By: phatsat67
Date Posted: October-10-2018 at 3:09pm
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Yes you will, You connect your VOM or test light to a positive and let the points do their job grounding that circuit out. (connect negative end to points wire) You'll see voltage fluctuation on your VOM and you will see your test light flashing as the points open and close while cranking the engine. Maybe you've never tested points using a positive supply? I have tested numbers and numbers of points systems this way. |
Posted By: KENO
Date Posted: October-10-2018 at 3:49pm
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It's all in the explanation and yours is hard to follow cause it's not well spelled out and it's changed on the fly. Let's leave it at I know what I'm doing and you know what you're doing And remember before I write this stuff, I go try it to verify the results. And Dave's points/condenser were worn out and needed to be changed |
Posted By: 8122pbrainard
Date Posted: October-10-2018 at 3:54pm
 ------------- /diaries/details.asp?ID=1622" rel="nofollow - 54 Atom /diaries/details.asp?ID=2179" rel="nofollow - 77 Tique 64 X55 Dunphy Keep it original, Pete < |
Posted By: phatsat67
Date Posted: October-10-2018 at 3:58pm
| Ha, I guess I just assumed everyone tests with that method. |
Posted By: KENO
Date Posted: October-10-2018 at 4:04pm
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Well like I said in another post a little while back "like most things in life, there's usually more than one way to do the job"
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Posted By: phatsat67
Date Posted: October-10-2018 at 4:26pm
| One of us probably needs to post up a nice guide to trouble shooting and keeping a points system working properly, |
Posted By: KENO
Date Posted: October-10-2018 at 10:19pm
We'll call that a definite maybe for right now. I'll PM ya' in a week or so about it. |
Posted By: samudj01
Date Posted: November-11-2018 at 6:24pm
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Tried to start the tique to winterize and nothing. Cranked and cranked. Have fuel no spark. Again. Points were fried. So decided to put on a new coil/resistor. Also new points. Ready to fire and what happened...turned it over and got a click. Damnit. Traced it around and the solenoid was shot. A new one of those and boom we are back in business. Winterizing and oil change tomorrow. Hoping the resistor was shot. A question or two: what does the voltage regulator do and why isn’t it on the wiring diagram that is so often referenced. Our red wire from the voltage resistor goes straight to the solenoid. Is that correct. It isn’t that way on our skier. We are looking at that and wondering if that defeats the purpose of the breaker we put on? ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: November-11-2018 at 7:49pm
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You're probably looking at the TRB typical mid 80's diagram. It doesn't show a voltage regulator because it's internal to the alternator You should be looking at this diagram for a closer representation of what you have on your 78 Commander which would be an alternator and a separate voltage regulator  The regulator should maintain the system voltage at roughly 14 volts plus or minus a little whether it's internal or external. Your original thread shows the external regulator on the back of the engine. Since you have a Commander no diagram seems to be around for that engine but the old PCM one above is fairly close. The wire colors for the voltage regulator might be different It sounds like the new points a while back were just a band aid for some other problem. What do you have for a ballast resistor/resistor wire. 999,999and 1/2 times out of a million a ballast resistor or wire fails and gives an open circuit and no voltage to the coil and therefore no spark. They don't fail in the low resistance direction and act like a solid piece of wire If your points got fried in a short period of time it sounds like high voltage/current to the coil and points from a bypassed resistor or no resistor How about a picture of the resistor showing the wiring to and from it In your last paragraph do you mean "red wire from the voltage regulator" ? Maybe a hand drawn picture of the wiring and the breaker you installed would be good to show what you're talking about |
Posted By: samudj01
Date Posted: November-11-2018 at 9:47pm
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Will get some pics up when back at home w computer. Yes I was talking about the red wire from the voltage regulator. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: November-12-2018 at 9:55am
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If it's a 12 gauge or so wire running like the purple wire coming from the regulator in the PCM diagram above, it's telling the regulator what the system voltage is It could be hooked to the ballast resistor inlet like in the diagram or it could be hooked to the battery side of the solenoid, either place will work |
Posted By: samudj01
Date Posted: November-12-2018 at 11:54pm
New Coil with internal resistor Pics of new solenoid and voltage regulator hooked up the same was as was the old solenoid. The red wire coming from the voltage regulator is on the positive batt side of the solenoid. The other wires coming out of the voltage regulator are purple and dark green   Any chance I can get that wiring diagram link or file. I am having a tough time reading it here. Or is it in a engine manual in the reference section? Fired up the Tique this morning and let it get up to temp. Fired right up and ran well. Oil change and winterized. One funny thing, took out 4.5qts of oil (we have a small leak/drip). Replaced with 5qts of oil and still read low on the dipstick. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: November-13-2018 at 8:30am
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Hi Dave The diagram can be found in the link on page 11 It's for a prestolite alternator and regulator. It's not a lot of good to you for much other than getting a general idea of how things are wired. Yours is a Motorcraft regulator and the alternator probably is too so the number of wires and the colors are different on your regulator. If you're getting normal voltage to the battery (around 14 volts) when it's running, then it's working right. http://correctcraftfan.com/Downloads/Waukesha.pdf" rel="nofollow - link Before you put in the new coil did you have the same coil for use with no external resistor or did you have an external resistor and a coil for use with a resistor? Or maybe a mystery coil and no resistor? |
Posted By: samudj01
Date Posted: November-13-2018 at 11:12am
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Had a coil with an internal resistor. ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: November-13-2018 at 3:11pm
| Just out of curiosity what is the brand and part number on the old coil and also on the new coil? |
Posted By: phatsat67
Date Posted: November-13-2018 at 3:34pm
| New Coil looks like Oreilly Masterpro or BWD. |
Posted By: samudj01
Date Posted: November-13-2018 at 4:12pm
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Old coil. I have a pic but I'm on my phone. All Black. Looks identical by shape. Written on it: 080 12V Use without external resistor Made in Mexico New coil: Masterpro from Oreilly: MPI 2-5025 12V Use without external resistor 567 ------------- 78 Ski Tique, 72 Skier w/302's, 93 SN w/351 & 17 GS22 w/zr409 Previous - 99 Sport Nautique w/GT40 and 87 Martinique w/351 |
Posted By: KENO
Date Posted: November-13-2018 at 7:13pm
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The good news is that the new coil is right for your application.with no resistor/ballast wire. It's got a primary resistance of 3.3 ohms so no ballast resistor is necessary. I put the same coil MPI 2-5025 on a friends points setup with no resistor, a while ago and he gets a fair amount of use out of the boat and he hasn't had any problems. Since they're relatively cheap, I keep one hanging around just in case So as long as you have normal voltage at the coil positive when the engine is running (around 14) that should rule out too much voltage to the points as the cause of the problem if the old one cross referenced to the new one. Which then means..............who knows what the problem was. Maybe you had a lousy set of points or a lousy condenser. |