The Ford Barn

Joe KCMO · 01-07-2012, 10:52 PM

For the last six months I have been rebuilding a stock 39 Ford engine. I started with a piece of crap stripped down block. Slowly over the last few months I have been buying the pieces to get the engine complete. Bearings, rings, you name it, but always as cheap as I could find.

Well believe it or not, when I hooked up the battery, the last part needed, it fired up. But not all is well in "cheap town". To me it seemed to be missing. I pulled the plugs and they were wet with fuel. Fiddling with the carburetor, I completely closed the mixture valves and checked the plugs again. Still wet. Note, I rebuilt the cheap carburetor with a kit. Of course the kit contained gaskets, power valve , accelerator plunger a needle seat valve. Any ideas why so much gas getting thru?

34ford · 01-07-2012, 10:55 PM

cheap is not always good

Russ/40 · 01-07-2012, 11:37 PM

You are not getting a seal with the gasket for the power valve. Very common problem, as the power valves being sold today are not correct. Buy a 5.5 valve from Ken ct with the proper gasket.

Joe KCMO · 01-08-2012, 12:22 AM

Quote:

Originally Posted by 34ford

cheap is not always good

Cheap price, not necessarily cheap quality!

The cheap part mentioned so no one would be confused with me buying new parts which have been professionally set up.

ken ct · 01-08-2012, 04:38 AM

Check your PM's. ken ct.

38 coupe · 01-08-2012, 10:12 AM

Sponsored Links (Register now to hide all advertisements)

All the carburetor kits I have used included two gaskets that could fit around the power valve. If you install the wrong gasket, the power valve leaks fuel down into the vacuum passages in the base of the carburetor. I have seen several rebuilt carburetors with this problem.

ken ct · 01-08-2012, 10:30 AM

Yea its the one with the 3 sided hole in the middle and its way too soft. I have the good valves and the correct gaskets.ken ct.

Charlie ny · 01-08-2012, 01:20 PM

Joe,
Make sure the iron base and bottom of bowl are flat....should not see
any light between them or you have a potential vac leak. The kit power valves
and gaskets as Ken says are verboten.
Charlie ny

Joe KCMO · 01-08-2012, 02:38 PM

I replaced the gasket and thank you very much normal gas flow. Thank You Ford Barn, on to the timing.

01-07-2012, 10:52 PM	#1
Joe KCMO Senior Member Join Date: May 2010 Location: Miami, Florida Posts: 423	carburetor problem For the last six months I have been rebuilding a stock 39 Ford engine. I started with a piece of crap stripped down block. Slowly over the last few months I have been buying the pieces to get the engine complete. Bearings, rings, you name it, but always as cheap as I could find. Well believe it or not, when I hooked up the battery, the last part needed, it fired up. But not all is well in "cheap town". To me it seemed to be missing. I pulled the plugs and they were wet with fuel. Fiddling with the carburetor, I completely closed the mixture valves and checked the plugs again. Still wet. Note, I rebuilt the cheap carburetor with a kit. Of course the kit contained gaskets, power valve , accelerator plunger a needle seat valve. Any ideas why so much gas getting thru? Last edited by Joe KCMO; 01-08-2012 at 12:26 AM.

01-07-2012, 10:55 PM	#2
34ford Senior Member Join Date: May 2010 Location: franklin park ill. Posts: 174	Re: carburetor problem cheap is not always good

01-07-2012, 11:37 PM	#3
Russ/40 Senior Member Join Date: May 2010 Location: Santee, California Posts: 3,505	Re: carburetor problem You are not getting a seal with the gasket for the power valve. Very common problem, as the power valves being sold today are not correct. Buy a 5.5 valve from Ken ct with the proper gasket.

01-08-2012, 04:38 AM	#5
ken ct BANNED Join Date: May 2010 Location: stratford,ct Posts: 5,971	Re: carburetor problem Check your PM's. ken ct.

01-08-2012, 10:12 AM	#6
38 coupe Senior Member Join Date: May 2010 Location: South Texas Posts: 1,631	Re: carburetor problem Sponsored Links (Register now to hide all advertisements) All the carburetor kits I have used included two gaskets that could fit around the power valve. If you install the wrong gasket, the power valve leaks fuel down into the vacuum passages in the base of the carburetor. I have seen several rebuilt carburetors with this problem.

01-08-2012, 10:30 AM	#7
ken ct BANNED Join Date: May 2010 Location: stratford,ct Posts: 5,971	Re: carburetor problem Yea its the one with the 3 sided hole in the middle and its way too soft. I have the good valves and the correct gaskets.ken ct.

01-08-2012, 01:20 PM	#8
Charlie ny BANNED Join Date: May 2010 Posts: 3,019	Re: carburetor problem Joe, Make sure the iron base and bottom of bowl are flat....should not see any light between them or you have a potential vac leak. The kit power valves and gaskets as Ken says are verboten. Charlie ny

01-08-2012, 02:38 PM	#9
Joe KCMO Senior Member Join Date: May 2010 Location: Miami, Florida Posts: 423	Re: carburetor problem I replaced the gasket and thank you very much normal gas flow. Thank You Ford Barn, on to the timing.