The Ford Barn

30aadoodlebug · 06-06-2021, 11:41 AM

So my parents 41 woodie broke down yesterday. Its a new rebuilt engine with fenton duals and smitty glass packs. Of course there are a few holes in the smittys I patched to try and diagnose the problem while Im waiting for the new ones to come in. Shes still blowing black smoke and running rough. I checked the electrical, and all seems fine. Im leaning towards a clogged jet in the carb.

Any help would be appreciated.

alanwoodieman · 06-06-2021, 11:51 AM

power valve bad--carb float set too high--inlet need valve has trash under it. clogged jets in carb would not flood out engine but just the opposite it would lean the engine out

30aadoodlebug · 06-06-2021, 12:12 PM

Right you are Alan! Power valve is toast!!!!

Ronnieroadster · 06-06-2021, 12:14 PM

Engine is getting way to much gas the is carb leaking to much gas areas to look at as noted in above post.
Ronnieroadster

jayvee34 · 06-06-2021, 12:48 PM

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If it backfired when first started after rebuild the power valve was surely blown.
Black smoke is to much gas,.

06-06-2021, 11:41 AM	#1
30aadoodlebug Senior Member Join Date: Jul 2014 Location: Boxborough, MA Posts: 274	Black smoke and backfiring in stock 41 Ford So my parents 41 woodie broke down yesterday. Its a new rebuilt engine with fenton duals and smitty glass packs. Of course there are a few holes in the smittys I patched to try and diagnose the problem while Im waiting for the new ones to come in. Shes still blowing black smoke and running rough. I checked the electrical, and all seems fine. Im leaning towards a clogged jet in the carb. Any help would be appreciated.

06-06-2021, 11:51 AM	#2
alanwoodieman Senior Member Join Date: May 2010 Location: upstate SC Posts: 2,963	Re: Black smoke and backfiring in stock 41 Ford power valve bad--carb float set too high--inlet need valve has trash under it. clogged jets in carb would not flood out engine but just the opposite it would lean the engine out

06-06-2021, 12:12 PM	#3
30aadoodlebug Senior Member Join Date: Jul 2014 Location: Boxborough, MA Posts: 274	Re: Black smoke and backfiring in stock 41 Ford Right you are Alan! Power valve is toast!!!!

06-06-2021, 12:14 PM	#4
Ronnieroadster Senior Member Join Date: Dec 2010 Location: East Coast in CT Posts: 1,528	Re: Black smoke and backfiring in stock 41 Ford Engine is getting way to much gas the is carb leaking to much gas areas to look at as noted in above post. Ronnieroadster __________________ I use the F word a lot no not that word these words Flathead , Focus and Finish. "Life Member of the Bonneville 200 MPH Club using a Ford Flathead block" Owner , Builder, Driver of the First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 in one and a half miles burning gasoline. First ever gas burning Ford flathead powered roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH

06-06-2021, 12:48 PM	#5
jayvee34 Senior Member Join Date: Apr 2021 Location: St. Augustine, Fl. Posts: 437	Re: Black smoke and backfiring in stock 41 Ford Sponsored Links (Register now to hide all advertisements) If it backfired when first started after rebuild the power valve was surely blown. Black smoke is to much gas,. __________________ IN GOD WE TRUST - SEMPER FIDELIS John