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Leaking Holley advice?

Started by JH27N0B, November 06, 2021, 07:05:09 AM

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JH27N0B

I've been procrastinating with my T/A for a couple years.  After last having it in MCACN, a few weeks later I kept smelling gas in my garage and finally got suspicious and checked under the hood.
The valleys between the intake runners were full of gas.
I told myself I'd mess with it the following year, but between work and weather never got around to it.  The 2020 came with the pandemic putting life on hold.
So here we are in 2021 and I got a friend over to help me start it and see where the leak was.
It fired up ok, but leaking by the center carb accelerator pump. So I got a new accelerator pump and replaced it. Fired it up but still leaking some around the housing where the accelerator pump is.
I found that housing was installed with 4 strange headed bolts.  I found a tamperproof tool that worked but not the best tool for the job.
Mopar Mitch had a proper tool, I guess it's called a metering block tool.  I took the carb off and retightened the bolts.  I reinstalled everything and am going to start it up again today but pretty sure it will still leak.
Any ideas or hints?

MoparLeo

Gaskets and seal deteriorate with time. Whether you use your car or not. If I had a T/A I would spend the money and   I would have the carbs gone through by a professional. There are carb restoring services that  specialize in Holley carbs with all of the modern gaskets and related hardware. They will be properly cleaned, inspected ( They will know how to properly do this and what to look for) they will assemble, adjust the floats and a/f adjusted to specs. Then you can basically just bolt it on and set your idle. Or you can buy books, research, buy a few kits and maybe everything will work out. But you can't buy experience.
Just like having surgery, you want the guy that has done the procedure 1000 times not the guy who is doing his first one (on you).
Also if any fuel is leaking into the intake, remember that it is going to contaminate and thin out the engine oil. Dangerous to have fuel in the oil.
moparleo@hotmail.com  For professionally rebuilt door hinges...

JH27N0B

The carbs were restored, I think by Holley, around 6 years ago.
At any rate, I just had a friend over to watch the carbs while I started it and ran it, and it isn't leaking!
Mitch's tool did the trick I guess snugging it down just a tad more to let it seal.  :ohyeah:
Now I'm going to mess around with trying to get the front end alignment better, other than that is ready for MCACN!


RzeroB

The alcohol blend in today's gas is rough on fiber-composite gaskets creating problems for everything from lawn-mowers to six-packs. Before you put it away into storage I'm sure you're using a fuel stabilizer like Stabil or Seafoam??
Cheers!
Tom

Tis' better to have owned classic Mopars and lost than to have never owned at all (apologies to Alfred Lord Tennyson)

JH27N0B

Yes, even some AVgas through in for good measure.
I wish we had alcohol free fuel here, never found it though.

Cratos

I had  a holly bowl leaking around the mixture screw .it was a hairline crack

RzeroB

Get it solved Brad?? Are we going to see you and your T/A at MCACN??
Cheers!
Tom

Tis' better to have owned classic Mopars and lost than to have never owned at all (apologies to Alfred Lord Tennyson)


JH27N0B

Everything seems fine, just got to get the details of my haul nailed down to see when it will get there.