Fuel in intake

NORMAN BARNARD · 05-31-2019, 01:52 PM

What is the list number of the holley carb.???

GallopinGhost · 05-31-2019, 02:17 PM

List 4668

FED 387 · 05-31-2019, 02:22 PM

is the base plate or carb body warped???

GallopinGhost · 05-31-2019, 02:44 PM

might be on to something, base of carb body is warped .011", top of base plate is .002"

I think I'll find some socket head screws to replace the Phillips head ones.

Quote:

Originally Posted by FED 387

is the base plate or carb body warped???

GallopinGhost · 05-31-2019, 05:44 PM

Well I made some progress. The screws are #12, so I didn't have any of those, so I tightened up the base plate best I could and ran it. The last few times I've run this engine,the vacuum floats from 8-12 in. with the rpm tracking the the vacuum, acted the same this time. Took off the carb and there was still fuel in the intake, maybe a little less. I took the carb base plate off and the base, body, and gasket were pretty much dry. Previously they were soaking wet. Far from a slam dunk, but it's worth pursuing. I think I will try to re-surface the body and get a new gasket.

GallopinGhost · 06-07-2019, 08:43 AM

Ok, I have finally found the real issue here. I did end up re-surfacing the bottom of the body and that is sealed up well. My original thought was to take out the power valve, I never tried that. So after looking at the baseplate, a lightbulb flickered on. First picture shows how I originally had it put together, second one is the fix.

Bobby DiDomenico · 06-07-2019, 09:52 AM

So changing from a 4 hole to a open plenum manifold gasket solved your issue?

05-31-2019, 02:17 PM	#2
GallopinGhost Member Join Date: Jun 2010 Location: VA Posts: 230 Likes: 23 Liked 21 Times in 13 Posts	Re: Fuel in intake List 4668 __________________ Brian Carpenter Stock 1358

05-31-2019, 02:22 PM	#3
FED 387 VIP Member Join Date: Jun 2006 Posts: 3,417 Likes: 522 Liked 331 Times in 179 Posts	Re: Fuel in intake is the base plate or carb body warped???

05-31-2019, 05:44 PM	#5
GallopinGhost Member Join Date: Jun 2010 Location: VA Posts: 230 Likes: 23 Liked 21 Times in 13 Posts	Re: Fuel in intake Well I made some progress. The screws are #12, so I didn't have any of those, so I tightened up the base plate best I could and ran it. The last few times I've run this engine,the vacuum floats from 8-12 in. with the rpm tracking the the vacuum, acted the same this time. Took off the carb and there was still fuel in the intake, maybe a little less. I took the carb base plate off and the base, body, and gasket were pretty much dry. Previously they were soaking wet. Far from a slam dunk, but it's worth pursuing. I think I will try to re-surface the body and get a new gasket. __________________ Brian Carpenter Stock 1358

06-07-2019, 08:43 AM	#6
GallopinGhost Member Join Date: Jun 2010 Location: VA Posts: 230 Likes: 23 Liked 21 Times in 13 Posts	Re: Fuel in intake Ok, I have finally found the real issue here. I did end up re-surfacing the bottom of the body and that is sealed up well. My original thought was to take out the power valve, I never tried that. So after looking at the baseplate, a lightbulb flickered on. First picture shows how I originally had it put together, second one is the fix. Attached Thumbnails __________________ Brian Carpenter Stock 1358

06-07-2019, 09:52 AM	#7
Bobby DiDomenico Senior Member Join Date: Jun 2002 Posts: 923 Likes: 102 Liked 101 Times in 52 Posts	Re: Fuel in intake So changing from a 4 hole to a open plenum manifold gasket solved your issue?

05-31-2019, 01:52 PM	#1
NORMAN BARNARD Member Join Date: Mar 2006 Location: EL PASO, TEXAS Posts: 156 Likes: 0 Liked 2 Times in 2 Posts	Re: Fuel in intake What is the list number of the holley carb.???