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Author Topic:   holley carb help
ohiodirt
Dirt Full Roller

Total posts: 46
posted March 31, 2003 06:52 PM
i've got a holley 84016-3 spread bore carb. i put it on my new motor and broke it in. all seemed well, just adjusted the idle. i pulled the car out and did a little lap in the driveway and it started bogging down or flooding out. i pulled the air filter and fuel was pouring down the secondaries like crazy with the engine shut down. i don't know alot about carbs... float stuck? the carb was sitting in my pickup truck motor for a long time. could the floats be saturated and worn out? i've gotta be ready by saturday anyone have any ideas?

Earl Parker II
Dirt Full Roller

Total posts: 39
posted March 31, 2003 09:15 PM
First, I would check both floats. If they're brass then remove the fuel bowls, place your thumb on the float to hold it still and give each fuel bowl a shake. If you hear fuel sloshing in the float(s) then replace them. If the floats are black (nitrophyl) then replace them on general principles.

If the carburetor has been sitting a long time it probably needs a rebuild kit installed- at the very minimum it needs a new power valve, needle & seats and pump diaphragms.

This would also be a good time to clean the fuel cell, fuel lines and install new fuel filters.

Finally, if you have an electric or high-performance fuel pump, check your fuel pressure at idle- if it's over 6 psi., I'd install a fuel pressure regulator and set it on 6 psi. The Holley 12-704 is readily available (check around, prices vary widely) and does a good job.

The above should help- if it doesn't, let us know.

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Earl Parker II www.parkercarburetion.com
704.482.7588

[This message has been edited by Earl Parker II (edited March 31, 2003).]

[This message has been edited by Earl Parker II (edited March 31, 2003).]

ohiodirt
Dirt Full Roller

Total posts: 46
posted April 01, 2003 06:49 AM
thanks alot earl. i'm getting the rebuild kit today and taking it over to a carb competent friend of mine. thanks for the info.

Gordon3E
Dirt Full Roller

Total posts: 67
posted April 03, 2003 03:25 AM
Ohio Dirt:Save your money on a rebuild kit.I bought a used one just like yours. And it set for along time.The guy i bought it from,said if it leaks just let it set awhile after some gas had been run through it,and the gaskets would "swell" back up.And "ByGully" it did. Leaked and then let it set over nite.The next day i had no leaks.Guy knew what he was talking about.But i think i'm too late on this reply.See ya at the shop or the track. 3E

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