Holley 4160, or edelbrock carb? |
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skicat2001
Platinum Member Joined: November-24-2008 Location: Ft. Worth TX Status: Offline Points: 1950 |
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My last time out, I had some small backfires. It did it a couple of times and then completly quit. Called my mechanic and said the backfire came from the "power valve", which probally has ruptured and is leaking fuel into the motor. Said it would be fine until the end of the summer. Holley are very tempermental, but if they have all the right pieaces working, they are a great carb. I have heard many good things on Edlebrook carbs though.
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1985 CC 2001-SOLD
Lee Michael Johnson |
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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dont leave it till the end of summer and usually they rupture from a back fire not the other way around
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former skylark owner now a formula but I cant let this place go
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skicat2001
Platinum Member Joined: November-24-2008 Location: Ft. Worth TX Status: Offline Points: 1950 |
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So it could get worse? Hot damb....
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1985 CC 2001-SOLD
Lee Michael Johnson |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Come on Bruce!! When are you going to go back original with the YH carbs??? You probably knew I was going to say something!! I know you have the intake manifold. BTW, Steve (62wood) has plenty of spare YH's now! |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Pete, It is original! It's a marine downdraft, not an automotive intake. It uses the 2 goose necks just like the side drafts. I can't believe you've never picked that up when looking at the pics of the engine. I have an intake and 1 YH, but I don't ever see them going on that 312.
Our Mustang is running good, but is having some fuel issues. I may be talking to that carb guy, too. |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Thanks for the kind words Larry.
I'm a big boy, I can more than hold my own. While I may have a bit to learn about CC's especially the old ones (which I really don't care too much about other than if it looks nice) , I know more than some guys here are giving me credit for. As far as the carb, I am going to try putting a new needle valve and seat on the exiting Holley carb. If that does not do it, I will put a new carb on, and I am thinking Holley, mainly because that is what it has on it, and I want to make this as easy as possible. |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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eric lavine
Grand Poobah Joined: August-13-2006 Location: United States Status: Offline Points: 13413 |
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the only thing i can add is more than once, I have pulled off the edels and put on Holley's...it seems the edels dump to much gas
swapping over is the pita, bending new lines, linkage etc I guess its personal preference and holley is embedded in my brain and thats what ive come to know. plus they look better |
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"the things you own will start to own you"
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Thanks Eric!
That info definitely helps me in my decision. Contrary to what some might think, I am good with turning wrenches, but why make more work when you don't need to? |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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79nautique
Grand Poobah Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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yea great idea replace the carb remove the spacer foolish idiots worried about changing over this to that hell you can't even figure out the one you've got and think a new one is going to solve the problems, learn how to adjust a carb properly as you're not even in the right state to be close to the ball park to get it right.
leave the power valve alone until end of summer another idiot talking foolish BS. |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Thanks for the BS Chris.
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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79nautique
Grand Poobah Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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you might as well save the money for the needle and seat and use towards the new carb and after your done waisting your money on the carb maybe you'll listen doubt it, but half ace is close enough for you most it's not but you seems fine with it. |
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skicat2001
Platinum Member Joined: November-24-2008 Location: Ft. Worth TX Status: Offline Points: 1950 |
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leave the power valve alone until end of summer another idiot talking foolish BS. [/QUOTE] I hear ya Chris... Plan on running the boat one more time and see if it still exists. If it does, off to Austin she goes. |
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1985 CC 2001-SOLD
Lee Michael Johnson |
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79nautique
Grand Poobah Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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just go down to any autoparts store and get the holley 6.5 power valve and a primary gasket and swap it out, pretty straight forward easy to do no need to pay someone to do it. If the carb all ready has blue gaskets they are reusable and all you need is the power valve. |
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skicat2001
Platinum Member Joined: November-24-2008 Location: Ft. Worth TX Status: Offline Points: 1950 |
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I will start a new thread on "Power Valve". I just need to know where it is located. I can figure it out from there. Thats why I ENDURE this site.
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1985 CC 2001-SOLD
Lee Michael Johnson |
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peter1234
Grand Poobah Joined: February-03-2008 Location: United States Status: Offline Points: 2756 |
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Chris i know i may seem like a foolish idiot but have you ever read through your posts? man you spell like an idiot
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former skylark owner now a formula but I cant let this place go
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skicat2001
Platinum Member Joined: November-24-2008 Location: Ft. Worth TX Status: Offline Points: 1950 |
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LMAO... |
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1985 CC 2001-SOLD
Lee Michael Johnson |
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GottaSki
Grand Poobah Joined: April-21-2005 Location: NE CT Status: Offline Points: 3337 |
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Uhm, i'm aware i'm sticking my nose where it doesn't belong, but if thats how you guys choose to follow up an apparently straightforward, constructive answer, then you get what you get... Consider not clogging threads so frequently with how fewwings are hurt and such.
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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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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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My boat will stall when the air screws on either side of the primary are tightened down. From all that I have read, that means that the power valve is good. If it still ran after tightening both of those screws down, then that means the PV needs replacement.
Now, is the PV that is in there on mine the proper one? Good question? I will find out. I'll work on my carb tuning skills, and Chris, you work on your people skills. |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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it means the iddle circuit ir working properly and your metering block is OK. Nothing to do with the PV. Wonder where you read that, I never read that here. unless yours ruptured and leaking it shouldnt be a problem.
Even if your not running "the proper" PV your carb should perform right. Choosing the correct PV depends on how and what you use your boat for.
Chris is really bad at people, and lately it's been getting worse, I dont think he has any hope. Again, what's the problem with your current carb? Do you want help? Please detail the problem, not your ideas about it. We will try to help you out. |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Luch, I sure do want help. There is extra gas is dripping from the squirters on the primary, even at idle.
That makes it stumble. Thanks, Tom |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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Riley
Grand Poobah Joined: January-19-2004 Location: Portland, ME Status: Offline Points: 7952 |
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Call Karen at MyCorrectCraft parts and order a new 4160 and gasket. In a half hours your problems will be solved.
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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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First off.
-take the primary bowl off, -turn it upside down, making the needle close on the seat, -cover the balance tube passage with a finger -Try to suck from the fuel inlet, then put your lip or tongue see if it sticks. This checks vacuum is generated and will tell you if the needle closes well. If you also take the metering block off, you can try the same with the PV, sucking from the rounded face the PV should compress and stay compressed. If not it's ruptured. Check float level, keeping in mind the float has a tiny lift after it seats because of fuel pressure. If you have any doubts, post a pic of it at "closed position". Check those 3 things, and report back, |
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GottaSki
Grand Poobah Joined: April-21-2005 Location: NE CT Status: Offline Points: 3337 |
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Tom you're going to have to look up and use the right component names or this is going to get extra tedious. |
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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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79nautique
Grand Poobah Joined: January-27-2004 Location: United States Status: Offline Points: 7872 |
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hhhhmmmm leaks gas, must be bad needle and seat, but hell I've all ready rebuilt it once, changed the fuel pump to, what gives, the float looks fine can't figure it out.....so simple yet so far out of reach to comprehend the problem and fix it.
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Boosters I do believe is the proper term. |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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The psi from the new marine fuel pump is 8-8.5 psi. |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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8122pbrainard
Grand Poobah Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41040 |
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Sorry Tom but to me it looks high. Didn't I mention once before that you need to go to the optometrist?? It's not sitting "nearly" level. |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Pete, if I lower the float like this( as it sits when the bowl is on the carb) it will be raising the float.
Remember this is up side down. If this looks to be needing to be lowered when the bowl is turned right side up, I can do that. As far as my eyesight, it's already been fixed a long time ago and is 20/20. |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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Luchog
Grand Poobah Joined: April-17-2007 Location: Argentina Status: Offline Points: 2135 |
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lower the float and report back. Watch that spring float.
The PV is 6.5, it's fine. You are getting raw fuel out the primaries venturis. |
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horkn
Platinum Member Joined: September-10-2007 Location: Cedarburg, Wi Status: Offline Points: 1511 |
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Yeah, that did fix the fuel coming from the primary venturis.
It does idle nicely now, and when I rev it up it runs well too, but under steady throttle above like 1000 rpm or higher, it does still dump non atomized gas through the primary venturis, making it not run totally smooth. Shouldn't the gas be a little better atomized at all times? |
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78 martinique- refloored, reinforced, stringers re glassed, re engineered interior
GT40P heads Edelbrock Performer intake acme 4 blade http://img.photobucket.com/albums/v64/horkn/fish/nautique.jpg |
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