Season Mechanic or Old Fart

[roy braatz]

Ok I'm an old fart too,and I for-got why as you hold your hand cuped over the carb as the engine is runing ,the RPM picks up and the engine runs smoooother. HELP

[John M.]

Re: Season Mechanic or Old Fart

Roy,
This would indicate a too lean an idle mixture. First place I would look is a bad vaccuum leak! Knowing your tastes tend to run toward Powerglide cars like me, Don't forget to check the vaccuum modulator for a leak.

Regards, John McGraw

[roy braatz]

Re: Season Mechanic or Old Fart

John ! Now we do like powerglide vetts , just lazy I think. But I do have a 67 4 speed that I drive only on mornings before I get tired. It's my son-in-laws 69 vett. He put a rebuilt carb on pep-boys and it idels bad , but when I put my hand over it she runs nice.

[Mike M.]

Re: Season Mechanic or Old Fart

Roy: how old ya gotta be to be considered an ole cheese cutter?

[roy braatz]

Re: Season Mechanic or Old Fart

Mike just a little uglier then you , but I'm 63 and geting S.S. many of the original members of NCRS ARE old farts.

[Christopher R.]

Re: Season Mechanic or Old Fart

Your cupped hand is restricting air flow, making it run ricer, which is what it sounds like it wants. Therefore, without your hand, it is running too lean. Either it's adjusted too lean, or it's got a vacuum leak somewhere.

[Christopher R.]

One More Thing

If the carb backfires while your hand is there, you won't be happy. And it may want to backfire, seeing as how something's wrong with it, and you're fiddling with it.