Boats For Sale:
'83 2001 losing power at 35mph |
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Capt'n Dave 
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Joined: May-16-2020 Location: Knoxville Status: Offline Points: 18 |
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 Topic: '83 2001 losing power at 35mphPosted: November-22-2020 at 6:31pm |
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Turned out to be the Pertronix magnet/rotor. Replaced both and ran great.... Ended up putting the D.U.I. Distributor (RED) in anyway and WOW! Thanks for all the help boys!
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fahtal
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Joined: August-31-2020 Location: NL Status: Offline Points: 42 |
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Posted: September-01-2020 at 9:32am |
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oh and the fuel problem.
everything can be new. but still have an obstruction. i would test the portable tank solution. it is easy to test. my vw had a piece of rubber, that came of when mounting new hoses, and was stuck in the carberatur. (ok you still would find that with the portable tank...) also check your sparkplugs. what color are they. can you see if thjey have to much fuel or not. that can also help your diagnoses |
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fahtal
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Joined: August-31-2020 Location: NL Status: Offline Points: 42 |
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Posted: September-01-2020 at 9:26am |
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petronix or points...
i have a vw 1977 van with petronix did 40.000km with it and works like a charm put petronix in my 1945 gmc dukw. and 26 km later on the river they said poof and there i was floating on a brick like boat with no power on a bendy river with big commercial freight boats... lesson i learned. upgrades are ok but on water i like to have point because the die slowly and can get you limping home. the petronix says poof and good bye... |
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Capt'n Dave
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Posted: August-28-2020 at 10:07am |
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KENO, I didn't really give a PCV much consideration. After reading what the PCV does, I'm a bit more concerned. One of the breather's has a clip in it holding (what I think/thought is) a PCV. If it is in the cap, the cap is not tight and is often on leaning askew on the breather when I open the engine compartment. I'll use a hose clamp and get it tight. So, my question is if one valve cover is just a "breather", how does the pressure build in the other valve cover to operate the PCV?
Still mulling over the points and re-conversion, I'd love to consolidate the coil to the top of the distributor. It's the black for the PerTronix, thought the PerTronix 2 was overkill.
So, I'm thinking Pete is the "Points Guy"? I was on the forum about 2 years ago when I first started my rebuild. He was a HUGE help and you too, I recall. But I remember, like in his sig.... "keep it original", his comments had the same inference, LOL. But, I like to get others thoughts, especially when I don't know what I'm doing. Probably wanted to use this emoji when he saw the pic of my boat........  , nothing original about it, in color. |
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Capt'n Dave
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Posted: August-28-2020 at 10:01am |
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KENO, I didn't really give a PCV much consideration. After reading what the PCV does, I'm a bit more concerned. One of the breather's has a clip in it holding (what I think/thought is) a PCV. If it is in the cap, the cap is not tight and is often on leaning askew on the breather when I open the engine compartment. I'll use a hose clamp and get it tight. So, my question is if one valve cover is just a "breather", how does the pressure build in the other valve cover to operate the PCV?
Still mulling over the points and re-conversion, I'd love to consolidate the coil to the top of the distributor. It's the black for the PerTronix, thought the PerTronix 2 was overkill. So, I'm thinking Pete is the "Points Guy"? I was on the forum about 2 years ago when I first started my rebuild. He was a HUGE help and you too, I recall. But I remember, like in his sig.... "keep it original", his comments had the same inference, LOL. But, I like to get others thoughts, especially when I don't know what I'm doing. Probably wanted to use this emoji when he saw the pic of my boat........ , nothing original about it, in color.  |
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KENO
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Joined: June-06-2004 Location: United States Status: Offline Points: 11186 |
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Posted: August-28-2020 at 7:26am |
I think a picture of the PCV would make me think that you actually have a PCV in there somewhere.  It sorta looks like a vent line from the breather that's plumbed to your carburetor with no valve or restriction of any kind. By the way, if you want to keep the "points guy" happy and swap back, send me a PM with your address, and a plate complete with points and a condenser will probably show up in your mailbox a few days later. You'd have to get a cheap coil and a ballast resistor to make the points work and see if your Pertronix is the culprit. Free points plate, 25 or so for a coil and 8 or so for a resistor Is it an Ignitor 1 or Ignitor 2 module. The 1 has a Black module and doesn't really like the "super duper high performance low resistance coils" The 2 has a Red module
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Jonny Quest
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Joined: August-20-2013 Location: Utah--via Texas Status: Offline Points: 3009 |
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Posted: August-27-2020 at 3:04pm |
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Nice boat. Welcome to Team Red
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Current
2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
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Capt'n Dave
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Posted: August-27-2020 at 2:39pm |
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If this thing doesn't start appreciating my efforts, I might have to sell it...... except I'd lose my butt. This was my wife's family's boat. Her gave it to us when they moved from their lake house in Texas. We made a lap around the lake in it as a "get-away-boat" after we were married. Very sentimental and I couldn't wait to rebuild it. Here's a before and after......
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Capt'n Dave
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Posted: August-27-2020 at 2:18pm |
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So, thinking through re-adding the points. The coil I have now has an internal resistor, do you need the resistor in the back by the solenoid?
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Capt'n Dave
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Posted: August-27-2020 at 2:08pm |
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I thought about putting the points back, but I don't have the parts I removed to install the PerTronix. I think there was a bottom plate, which was replaced by the PerTronix plate where the points and condenser were attached. Maybe I could find one. The springs are good, new. The engine was a Crate 351W reverse rotation. The only reason I didn't replace the Prestolite was I couldn't find a new one. Turned out to be fine, gear, bearings all tight. Old engine had about 300 hours. Just thought it would better to have EI. Pic is of the oil pump. Water definitely in the oil. Thoughts on getting another points mounting plate somewhere?
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ScottZ
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Joined: January-20-2004 Location: Clanton, AL Status: Offline Points: 1157 |
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Posted: August-27-2020 at 11:04am |
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Check your springs in the distributor.
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Scott Zuelzke
Lake Mitchell , AL 1984 Ski Nautique 1972 Skier |
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GottaSki
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Joined: April-21-2005 Location: NE CT Status: Offline Points: 3365 |
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Posted: August-27-2020 at 10:28am |
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Good idea Pete.
Dave tell us more about the engine build. If the igniter proves bad there are other options to consider before ordering a dui
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-27-2020 at 10:21am |
Put the point set back in and see what happens.
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Capt'n Dave
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Posted: August-27-2020 at 9:30am |
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Thanks for the suggestions. Everything is brand new, fuel dip tube, lines, vent, etc. Only 35 hours on new motor. Installed the new carb at about 32 hours and basically never ran better, ......now this! KENO, your suggestion might be the first step to narrow it down. Yes, I have a Moeller fuel filter under there, you just can't see it. (Another) new filter added in March. I think the PCV is within the left valve cover cap? with the hose running to the carb. The right one is just a breather.
Weird that it runs at full throttle except when it really gets warmed up. I've also done a little back check on this electronic ignition from PerTronix. They Fail often, one review mentioned stalling or power reduction at high rpm's. The ONLY component on that engine not replaced is the distributor (and manifold). Thinking of getting the Marine D.U.I. but that'll mean more new plug wires. Looks like I need to find an extra $600  |
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KENO
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Posted: August-27-2020 at 7:36am |
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Or to take everything that comes before the fuel pump out of the picture, hook up a portable tank directly to the fuel pump suction and see how it runs. Make sure the portable tank is vented.
Do you have a spin on or canister type fuel filter?, I think I see the bracket for the original Fram style with nothing mounted under it. If there's no filter before the pump, the valves in the pump can get crudded up and affect the pump operation. Do you have a PCV valve on the engine?
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SNobsessed
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Posted: August-26-2020 at 8:58pm |
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Also could be clogged fuel vent. Try leaving the cap a little loose & see if that fixes it.
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“Beer is proof that God loves us and wants us to be happy.”
Ben Franklin |
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GottaSki
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Posted: August-26-2020 at 7:49pm |
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Go to fuel tank and remove the barb fitting, it's a check ball inside it.
If that is clean, disassemble the dip tube and check for a conical screen in the assembly |
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"There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing."
River Rat to Mole |
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Capt'n Dave
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Posted: August-26-2020 at 6:27pm |
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I have a 1983 Ski Nautique, 351W. Installed a new carb, Protonix EI, new plugs. Cranks up with one turn, runs very smooth. After start up, I can run it up to full throttle with no problem, smooth and strong, hits about 42- 45 mph. After about 30 minutes, it starts to bog down when I push it past 35 mph, back off and runs great again. It's not missing, just struggling, like it's not getting enough fuel. If I let it cool for 10 minutes or so, it runs great, then same issue. Temp gauge at 180, oil pressure great, amps great. Any help is appreciated.....
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Capt'n Dave wrote: