Holley carb rebuild

Dear all

Just to let you know that my boat with carb rebuild works perfectly well now. Idle speed is perfect, no more big smoke at the back.. start up at cold is imediate and nor more cugthing at high speed.

I would like to thank you all of you who help me with my carb rebuild. So sad that we are too far, we could have meet on the water.

Thanks to all again.
Regards from france

No high speed adjustments are needed. Yup, just adjust the idle screw.

Serge,
There isn't much that will stand up to gas especially today's ethanol. If you had a new plug, I would suggest Aviation compound by Permatex. Before trying to apply something from the inside, You could try some epoxy on the outside. Clean and abrade the surface and give it a try. It may or may not work.

Hello,
If it is a Welch plug used to block off unused holes from machining, it means that I did not forgot a gasket .
How can I repair this leak from the wesh plug as I do not have spare. Can I place some strong glue or something similar?

If yes how ?

Regards
Serge

Dear all,

Finnaly I drive my boat at the harbor today after rebuilding my carb.
But of course nothing goes right from first step.

While stqarting the engine, I could see some fuel leak comming out from the small circle part on picture below.this is the part which control full level in primary side of the carb.


Did I forget gasket from that part ? If yes which one ?

Thanks for help
Regards

Hello guys,

Is there suppose to be a gasket between those two part ?

I receive only one main gasket which i guess goes between the motor and the carb base.

Regards
Serge

does a air compressor can be used to clean idel screew orifices ?

Yep, those are good videos, much better than the pdf I have.
The jet adjustment was overkill and gobbledygook anyway. More for initial design on a hotrod rather than a rebuild.
I'm hoping to get my engine installed and tune mine this weekend.
Let us know how yours goes.

I haven't tuned mine yet (this is my first 4 barrel carb) but this is what I've read so far:

Your idle mixture, your main and secondary jetting may need adjustment.

I bought a vacuum gauge to set mine up.

Make sure beforehand that your accelerator pump arm is set properly:
0.015 clearance at WOT (wide open throttle) with engine off. If you didn't change this and it was set properly initially it should be ok. (Mine wasn't)

Idle: Start with about 2 turns out; then lean it out until the vacuum starts to drop then back off (richen) about a 1/4 turn; slightly more if it stumbles at low speeds.

A bit busy, so main and secondary jetting adjustment will have to be after work...4:30PM Central (GMT -5)

Shoot me an email address. I have a 26 page pdf that explains things more extensively than need-be but it should help.

Hopefully. But, plan on doing some tweaking.

Tube de transfert = x-fer tube

Joints toriques = o-rings

Seat the orings on the xfer tube by rotating it and moving it back and forth, else a gas shower is likely

The needle and seat is inside the fuel bowl, and it is what the float pushes against to shut off the flow of fuel.

I should have given you the following link sooner. I forgot I had it actually, and i've been pretty busy with work. It's probably the best pictorial write-up for a Holley rebuild I've seen here, by MI-nick. Some of the pieces you've had questions about are illustrated well:

http://www.correctcraftfan.com/forum/forum_posts.asp?TID=24175&PN=1&title=carb-rebuild-88-2001

Your needle and seat are going to be inside the area of the of the red square in the following picture from the above thread:

Vous Da Homme!    Bri 2001

DrCC wrote: I'm getting a 404 error on all your links.

Al,
It's not a problem on your end. I'm getting the 404 too.