Thread: Meller's "Last" Hoorah - '62 Fairlane

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your high idle may be caused by a vac. leak?

Good work so far Mello keep the pix coming. In my old 302 had the same oil leak , turned out the threads to pan were stripped and a helacoil fixed it. Course that was 30 years ago.

Originally Posted by cffisher

your high idle may be caused by a vac. leak?

Charlie, I have looked and changed and tightened everything I know to do. However the new carb does have several vacum ports that I had to block off because of not needing them so it's gonna take someone with the ability to find it cause I have looked.

thanks,
Em

Originally Posted by MelloYello

Charlie, I have looked and changed and tightened everything I know to do. However the new carb does have several vacum ports that I had to block off because of not needing them so it's gonna take someone with the ability to find it cause I have looked.

thanks,
Em

"Look" with a can of carb cleaner! Spray carb cleaner around all the intake mating surfaces, carb fittings, etc, etc and if the rpm goes up you've found the area of the leak. Then some selective spraying can isolate it to a specific item leaking. Just a thought....

thanks Roger, that will be my next move but it may be Tuesday before that happens - - - - grocery day tomorrow - - - YUCK !

I hope it doesn't turn out your vacuum leak is at the carb base/intake manifold where I suggested Permatex (Form-A-Gasket #3).

Originally Posted by MelloYello

- - - - grocery day tomorrow - - - YUCK !

Not more than 2 minutes ago my wife said something poignant about the fact that "we" haven't done the food shopping yet this weekend so my first reply was "we don't need no stinkin' shopping" but I don't think she liked that one.

in my many years of being incarcerated I have found that it's easier to just do it and avoid the verbal beating

Around my neck of the woods we call that being whipped... not incarcerated.. I'm sure we all suffer gladly! HAH!

Originally Posted by rspears

"Look" with a can of carb cleaner! Spray carb cleaner around all the intake mating surfaces, carb fittings, etc, etc and if the rpm goes up you've found the area of the leak. Then some selective spraying can isolate it to a specific item leaking. Just a thought....

Got it cranked - - - idling at 1400 rpms - - - let it run until choke opened and then sprayed starting fluid around the base gasket - - - "voila" it sped up so I've got a leak there for sure - - - - next move is to NAPA for new gaskets and maybe some "stickem"????

TAA,
Em

Originally Posted by MelloYello

Got it cranked - - - idling at 1400 rpms - - - let it run until choke opened and then sprayed starting fluid around the base gasket - - - "voila" it sped up so I've got a leak there for sure - - - - next move is to NAPA for new gaskets and maybe some "stickem"????

TAA,
Em

Em,
You really don't want any type of "stickum" on a carb base. If everything is flat and clean the gasket will seal. If it's not clean, clean it and scrape gently with a single edge razor blade being careful not to gouge the surfaces. If it's not flat you need to fix that by surfacing the faulty part. A good surfacing block is a piece of glass with some fine sandpaper on top. If you research the carb to intake joint you'll find that clean and dry is the way to go.

If it idles at 1400 with the choke on its probably because of the hi idle cam on the carb butterfly shaft------------

and the throttle shaft probably has too much wear so is leaking vacume BUTTTTTTTTTTTT that may not be a problem----does the throttle plates close with the choke in the off position?????????????/

I believe the carb was new or rebuilt recently... If so , the throttle shafts should be in good shape. But Em can verify this info.

Originally Posted by rspears

Em,
You really don't want any type of "stickum" on a carb base. If everything is flat and clean the gasket will seal. If it's not clean, clean it and scrape gently with a single edge razor blade being careful not to gouge the surfaces. If it's not flat you need to fix that by surfacing the faulty part. A good surfacing block is a piece of glass with some fine sandpaper on top. If you research the carb to intake joint you'll find that clean and dry is the way to go.

I did that surfacing twice on both sides but I probably need to do it again - - - that spacer is the one that is hollowed out and Dave told me the solid ones are better but I'm gonna try and get this one to work - - - need to pick up some decent emery cloth along with the gaskets, eh?

Originally Posted by jerry clayton

If it idles at 1400 with the choke on its probably because of the hi idle cam on the carb butterfly shaft------------
and the throttle shaft probably has too much wear so is leaking vacume BUTTTTTTTTTTTT that may not be a problem----does the throttle plates close with the choke in the off position?????????????/

Jerry, it is a brand new carb with an electric choke kit added and everything seems to work great except for the dang idle being so fast - - - it sure did suck that starting fluid and speed up when I sprayed it on the bottom gasket tho.

thanks Y'all, I'm soaking all of this up that my pea brain will hold and I appreciate it,
Em

you don't want to use gasket sealer on the carb or the plate. If you can't get it to stop try 2 gaskets or a new plate. try tightening the 4 bolts a little at a time going around the carb.

OK, no sealant - - - I got one more thing I'm gonna try per Dave W.'s suggestion and if that doesn't do it then I'm gonna get NAPA's machine shop to mill both sides of that spacer while I'm getting new gaskets and then we'll see what happens.