Which Holley Carb?
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=8446
Printed Date: November-23-2024 at 6:48pm
Topic: Which Holley Carb?
Posted By: uncle-buck
Subject: Which Holley Carb?
Date Posted: September-18-2007 at 6:32pm
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I have a 1990 SN with a PCM/Ford 351 and want to buy a new Holley carb. My question is which one?
The Holley website lists a 0-80319-1 which is calibrated for small block 351 Ford marine engines, and a 0-80551 which has universal marine calibration. Have read some other posts that recommend a 6.5 PV. Do the new carbs come with that size or does it have to be purchased separately and installed? If separately, do you install it when the carb is new or during the first rebuild? Thanks for any help or advice. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Replies:
Posted By: 79nautique
Date Posted: September-18-2007 at 7:44pm
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why don't you just re-build the one you have now ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: uncle-buck
Date Posted: September-18-2007 at 7:59pm
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Well, I like working on my boat, but probably don't have the patience to rebuild a carb again. Last did it about 20 years ago on a 1980 Ski Supreme, so I'd be learning to do it all over. Plus, it drove my wife crazy. All those little pieces and the smell of carb cleaner.
Thought I might install a new one and get a local guy to rebuild the old one to keep as a spare. So, if you were buying a new one, which one would you get and who would you buy it from? Thanks and I've enjoyed reading your posts. You sure seem to know your stuff. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: 79nautique
Date Posted: September-18-2007 at 8:04pm
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where are you located? you want the first one notice the location of the fuel line as it is attached to the carb. They are basicly the same carb.
As for the powervalve if it doesn't come with the 6.5 them it will have a smaller vaccum rating and the secondaries will come in later, not a bad thing for fuel consumption, but might hurt out of the hole or pulling perfromance. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: uncle-buck
Date Posted: September-18-2007 at 8:08pm
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I am in Houston.
Perhaps it makes sense to try the carb with the PV that comes with it and and replace the PV with a 6.5 if needed. Thanks again for your help. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: TRBenj
Date Posted: September-19-2007 at 9:14am
PV is on the primaries, isnt it? How would it affect the secondaries? ------------- |
79nautique wrote:Posted By: racintj
Date Posted: September-19-2007 at 11:31am
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I think what 79 meant is that the 25% fuel boost from the PV will come later; therefore, a bog until it does so. I think.
Get the new carb, buy a 6.5 PV, pull the primary bowl and block, replace the PV and bolt the carb on. Not expensive (the new PV), and not hard to do. You won't be happy with the 2.5 PV. ------------- Every day above ground is a Good day. Lakeland, FL |
Posted By: uncle-buck
Date Posted: September-19-2007 at 12:11pm
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OK, I think I'll try rebuilding the old carb myself (assuming it's not corroded on the inside) and install the 6.5" PV. There are lots of helpful tips on this site as well as on the Holley site, so it should be do-able.
The Summit Racing site lists a couple of Holley 6.5" PVs. One is a standard flow. The other is a high flow. Which one would you go with? Thanks for any additional advice on this. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: 79nautique
Date Posted: September-19-2007 at 6:03pm
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get the one with the anti-blow out feature, or is that on the carb it's self? ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: Michel
Date Posted: September-19-2007 at 6:07pm
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I have 1996 SN with same engine.
I ordered a 4160 a couple of months ago from Skidim. Replaced the old carb and engine run really great now! Didnt need to adjust anything except from the idle of course. Be aware that Summit has a lot of different types of the 4160. You should have the 4160 600CFM 4BBL for this Ford engine. Michel |
Posted By: GottaSki
Date Posted: September-19-2007 at 6:14pm
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I think there is a check-ball built into the throttle plate in the vacuum pasage. buck's vintage carb should be all set according to documents I've seen from holley.
buck, std is what you want the PV doesn't meter the fuel, just turns it on. the PVCO's meter the fuel and these are small and fixed in diameter, so high flow is not required. ------------- "There is nothing, absolutely nothing, half so much worthwhile as messing around with boats...simply messing." River Rat to Mole |
Posted By: uncle-buck
Date Posted: September-19-2007 at 7:18pm
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Thanks, fellas. The rebuild kit came with a 2.5" PV. I'll plan to go with the standard 6.5" PV. If it doesn't work properly (and I believe it will), I can always install the 2.5" PV.
The carb was new in 1995, rebuilt in 1998, and hasn't been touched since. I can't wait to get it running perfectly again! ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: 79nautique
Date Posted: September-20-2007 at 12:57am
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just makes sure the butterfly's are nice and tight and everything else as well. Also if the choke stat looks questionable replace it. I believe there is one diaphram or somthing that might not be in the kit. Just remebering Dad getting something besides the stat during the rebuild. Also if either bowl looks pitted on the inside you can get replacements if needed. ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=756&sort=&pagenum=1&yrstart=1979&yrend=1979 - 79 nautique |
Posted By: uncle-buck
Date Posted: September-20-2007 at 6:06pm
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What do you mean by make sure the butterfly valves are "nice and tight"? On the shafts? In the barrels?
I ordered a new choke stat. Good idea. The extra part you mentioned is the secondary diaphragm assembly, I believe. Doesn't come with the kit. Ordered one of those, too. Thanks for your continuing assistance. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: JR_VIC
Date Posted: September-21-2007 at 2:44am
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I am going to sell my 4160 Holley marine carb I took off my SNCB with a 351W a few months back. I can take pics this weekend and e-mail them to you if interested. It is the original Holley 4160 marine carb with electric choke and vacum secondaries that came with the boat. It was completely rebuilt last year and properly soaked in a carb cleaning tank and rebuilt with the marine Holley rebuild kit and the choke works also. I also spent the extra $$$ for a new Holley marine metering block as well from DIM. It has a new 6.5 PV, chrome choke cover, chrome accelarator pump, and a billet aluminum secondary metering block conversion kit which adds rear jets in place of the rear metering plate. The front and rear bowls were recently powder coated Dupont metallic red and the carb is in excellent condition with no known problems. I recently added heads and a cam and needed a bigger carb which is the reason for replacing this carb. The only thing I would advise for you is that this carb is not going to be a direct OEM replacement due to the rear jets may need to be changed to a different size depending on your engine mods etc. Asking $275 plus shipping. Let me know.
Thanks! ------------- "That's not a Snow Cone that's my Ring!" |
Posted By: uncle-buck
Date Posted: September-21-2007 at 3:03am
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I appreciate the offer, JR, and I'm sure it's a beautiful carb, but it sounds too complex for me right now.
It will be a chore just to rebuild the stock 4160 correctly, put it back on the boat, and get it dialed in. I also plan to replace a bunch of water hoses, clamps, fuel hoses, belts, etc., restore the shine to the boat's gelcoat, and get some skiing in, too. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: uncle-buck
Date Posted: September-23-2007 at 9:54pm
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OK, got the carb rebult this afternoon and it works just fine. Taking photos with a digital camera during the disassembly process helped quite a bit. So, thanks for the encouragement and guidance, gentlemen.
The rebuild seems to have solved the issue of being hard to start when the motor's warm - which has been bothering me for a couple of years. Glad to get that fixed! I installed a 6.5" PV and look forward to seeing how it performs. There is some minor corrosion on the four primary fuel bowl to main body screws, the carb bowl to line fitting adapter, and the secondary throttle shaft. The fuel bowls look good on the inside. I plan to replace the screws and line fitting adapter which should help keep things running smoothly. Don't plan to replace the secondary throttle shaft since it's after the carb - unless you believe it needs to be done. Thanks again for your help. ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: jbear
Date Posted: September-24-2007 at 2:04am
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Vic: Could you post some pics or try to e-mail me some?
Thanks; john ------------- "Loud pipes save lives" AdamT sez "I'm Canadian and a beaver lover myself"... |
Posted By: TRBenj
Date Posted: September-24-2007 at 2:41am
Here you go, John. Jeff posted these before: 
 ------------- |
Posted By: uncle-buck
Date Posted: September-24-2007 at 2:56am
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Wow, that is one beautiful engine! ------------- 1990 Ski Nautique (original owner) PCM 351W with D.U.I. |
Posted By: Jim_In_Houston
Date Posted: September-27-2007 at 11:38pm
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Looking at that engine makes me feel like a girl with an ugly dress headed to the prom. I think I'll just keep my engine cover down. ------------- Happy owner of a '66 and a '68 Mustang |
Posted By: boat dr
Date Posted: September-27-2007 at 11:49pm
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Jim is she a "ONE BAGGER or TWO BAGGER????
one bagger = one bag fits over her head Two bagger= one bag for her, and one bag for you........... IN CASE HERS FALLS OFF ------------- boat dr /diaries/details.asp?ID=4631 - 1949 Dart /diaries/details.asp?ID=1533 - 1964 American Skier |
Posted By: 8122pbrainard
Date Posted: September-28-2007 at 10:09am
I hope this doesn't stir up more comments about southern girls!!! ------------- /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: Riley
Date Posted: September-28-2007 at 11:02am
| That is one heck of an engine. What kind of ignition wires are those? They look like they have braided insulation on them. |
Posted By: TRBenj
Date Posted: September-28-2007 at 11:05am
Theyre Performance Distributor's LiveWires. They sent a sample wire with my DUI, and theyre pretty impressive. They run ~$100. ------------- |
Posted By: JR_VIC
Date Posted: September-29-2007 at 3:56pm
Thanks for the comments on the engine...it is appreciated. Alot of sweat and tears for the last year or so getting the engine put together. I should post up some new pics of the boat. Since those pics were taken I now have changed over to a demon carb and had to custom make a new fuel line. I also changed all of my fuel line fittings over to AN style which is the 37 degree fittings and I like them better because you don't have to use any tape or pipe dope to get them to seal. Even though Holley states to not use any tape on the fuel fittings I have had standard fittings leak and called Holley tech and they even said in some cases you may have to use tape or that ARP pipe dope that is fuel resistant to stop stubborn leaks on standard fittings. Anyway the AN fittings are easy to undo if you are tuning the carb alot and need to take it off they are easier to use. Those DUI plug wires do look cool but I had about six or seven of the metal inside the cap that snaps on the spark plug just break off onto the spark plug doing plug checks while tuning the carb. I could only take them off about two/three times and they would break off. DUI was good about sending me a replacement piece but I got tired off always worrying if one of the cyclinders was not getting a good spark due to one of the plugs not getting fire. I just replaced them with those high energy Moroso blue wires and so far they have not broken off yet. Maybe if you just installed the DUI wires and did not take them on/off as much as I did they would hold up better. Thanks! ------------- "That's not a Snow Cone that's my Ring!" |