I have a 4011 series Holley 650 vs

I have the rebuilt kit.

Any tips of pointers?

 

watch out for flying springs

 

Blow out the circuits with some air pressure and then get a gallon of the socking cleaner, not the spray. Works much better, your carb thank you for it!

 

Gruveb,

Colin is right - soak the carb in a pail of cleaner. Rinse it with hot water, then dry everything thoroughly.

On the Holleys. you'll find a few key places that use 'O' rings to seal fuel lines, passages, and air bleeds. Get a tube of barium based lubricant to apply to these rings before you install them. Parker O-Lube is specifically designed for this type of application. Make sure you lube the rings on the fuel transfer tube well. The idle air bleed screws should also have 'O' rings to seal them. There is also a ring on the vacuum secondary mounting base, and may be rings on the fuel inlet needle seats depending on your specific model and its age.

Clean the surfaces of the metering blocks, fuel bowlsm and metering plates (spacers) VERY well, or you'll have the typical Holley leakage. Get every last trace of the old gasket material off there, however you can.

If you have metal floats, get rid of them. They evenutally WILL leak.

If your rebuild kit includes a new power valve, check the fuel ports in it. If the ports are a series of four or six holes drilled around the base of the valve, set it aside and try to find a replacement power valve with the "bay window" type openings - a longer slot cut in each side of the base of the valve. The drilled valves don't flow fuel *** easily aand can lead to leanout problems.

Other than that, I don't know a freakin' thing about Holleys, other than I think they are generally totally inferior to a Carter ThermoQuad.

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Colin,

I didn't see your original "Near Death" post, but your comments made me curious, and I searched it out. While I can sympathize with your anxiety over your experience, I can agree with the decision to close the thread (at least it wasn't just deleted). That may make me a "bad guy" too, but moderators are supposed to limit the posts to a more technical conteent. I probabbly would have done the same thing. If we allow one exception, then the sky is the limit. There is of course a little lattitude allowed in posts. And while that was certainly an interesting experience (it would have stained my drawers, too), it really didn't fit the mold for a technical thread in this forum. I trust that you can see that reasoning, even if you don't agree with it.

Incidentally, in case you may think that all moderators are "clones" and that we support each other like robots, search out the thread that was closed a couple of weeks ago. It was mostly board moderators that were arguing and name-calling over a mostly non-technical thought. IIRC, I closed that one, too. You should see some of the emails...

And if you want further proof, wait until Ede sees this one (if he does). He'll probably hammer me like a bent nail over my opinion of Holley carbs. You see, I managed to sneak in my non-technical opinion in the middle os a technical reply. That's how it's done, but I'll probably get reamed over it...

Laterz...

 

Something to think about with the carms is you can now get plates for the Holley that are sandwiched by the the main body and the side tanks, that save you from havind to drain and pull them off when changine jets... Makes it a lot easier!

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Thanks Vader... If I was a moderator I would use one account to reply to posts, and one to close... That way people wount have preconceptions about me, before they read my opinions. Not that you are a mean moderator (actually you are the nicer... opp, I'll have to watch for probation now...) Because there are a few of moderators who dont have many fans...

Thanks for understanding!