The Ford Barn

jetmek · 02-26-2025, 01:24 PM

Ran across this pan with removable lower flywheel section but noted it has no oil breather. Cant figure out its intended use.., i know 32-35 never had a removable rear section or oil filter return. Ideas?

Ronnieroadster · 02-26-2025, 09:01 PM

The 1948 and earlier Ford flathead V-8 oil pan with the removable lower section was used on commercial vehicle's.
The idea being a truck or bus would wear out a clutch a lot faster than a car. So making it easy to remove that rear lower section of the pan made a clutch and flywheel removal a lot easier than pulling the entire oil pan. Some of the larger trucks and buses were an open drive type transmission so the tranny removal was easier as well. No toque tube rear or an engine to pull to get the transmission out.
Ronnieroadster

petehoovie · 02-26-2025, 09:08 PM

Quote:

Originally Posted by jetmek

Ran across this pan with removable lower flywheel section but noted it has no oil breather. Cant figure out its intended use.., i know 32-35 never had a removable rear section or oil filter return. Ideas?

cas3 · 02-26-2025, 10:58 PM

Ronnieroadster, do you have any thoughts about the lack of the normal breather exit?
I've never seen a post 35 pan without the breather

Zeke3 · 02-27-2025, 03:18 PM

Did military use a PCV system?

alchemy · 02-27-2025, 05:07 PM

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Looks like the main pan stamping and the doubler brace had room for the breather. The worker must have sneezed when that pan went down the assembly line.

Lawson Cox · 02-27-2025, 09:51 PM

Quote:

Originally Posted by petehoovie

P-iss poor job of sand blastin the pan.

V8 Bob · 02-28-2025, 09:58 AM

Quote:

Originally Posted by Zeke3

Did military use a PCV system?

Yes, and my guess is this is a military pan.

rotorwrench · 02-28-2025, 01:38 PM

Most trapdoor pans were for the big 4-speed clutch. V8s were used in the universal carriers in both 221 and 239 types and they had to have a PCV and oil coolers due to placement in the middle of the carriage. Some big trucks also had PCV in Canada. I'm not sure about US manufacture.

jetmek · 02-28-2025, 09:11 PM

Delete

jetmek · 02-28-2025, 09:13 PM

Quote:

Originally Posted by Lawson Cox

P-iss poor job of sand blastin the pan.

Your more than welcome to come here and stand out in the snowbank with a blaster to bring it up to your standards

big deuce · 02-28-2025, 11:45 PM

Maybe he's not done cleaning it up... the thread wasn't titled " how's my sandblasting job?" It's a dam sight cleaner than mine will ever be.

jetmek · 03-01-2025, 08:20 AM

Thanks. Its prob is a military truck part

02-26-2025, 09:01 PM	#2
Ronnieroadster Senior Member Join Date: Dec 2010 Location: East Coast in CT Posts: 1,778	Re: Truck oil pan ? The 1948 and earlier Ford flathead V-8 oil pan with the removable lower section was used on commercial vehicle's. The idea being a truck or bus would wear out a clutch a lot faster than a car. So making it easy to remove that rear lower section of the pan made a clutch and flywheel removal a lot easier than pulling the entire oil pan. Some of the larger trucks and buses were an open drive type transmission so the tranny removal was easier as well. No toque tube rear or an engine to pull to get the transmission out. 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 First Ford Flathead bodied roadster to run 200 MPH Record July 13, 2018 LTA timing association 200.921 First Ford flathead roadster to run 200 MPH at Bonneville Salt Flats setting the record August 7th 2021 at 205.744 MPH reset the record in 2024 to 211.830 running to mile four. Top speed 2024 mile five 220.672 exit speed 221.587

02-26-2025, 10:58 PM	#4
cas3 Senior Member Join Date: Jan 2011 Location: Beverly Kansas Posts: 5,557	Re: Truck oil pan ? Ronnieroadster, do you have any thoughts about the lack of the normal breather exit? I've never seen a post 35 pan without the breather

02-27-2025, 03:18 PM	#5
Zeke3 Senior Member Join Date: Dec 2014 Location: Columbus, IN Posts: 1,646	Re: Truck oil pan ? Did military use a PCV system?

02-27-2025, 05:07 PM	#6
alchemy Senior Member Join Date: May 2010 Location: middle of Iowa Posts: 1,001	Re: Truck oil pan ? Sponsored Links (Register now to hide all advertisements) Looks like the main pan stamping and the doubler brace had room for the breather. The worker must have sneezed when that pan went down the assembly line.

02-28-2025, 01:38 PM	#9
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 18,006	Re: Truck oil pan ? Most trapdoor pans were for the big 4-speed clutch. V8s were used in the universal carriers in both 221 and 239 types and they had to have a PCV and oil coolers due to placement in the middle of the carriage. Some big trucks also had PCV in Canada. I'm not sure about US manufacture.

02-28-2025, 09:11 PM	#10
jetmek Senior Member Join Date: May 2010 Location: albany Posts: 494	Re: Truck oil pan ? Delete __________________ engine and component overhauls my specialty! Website- www.godevilgarage.com

02-28-2025, 11:45 PM	#12
big deuce Senior Member Join Date: May 2010 Location: Kansas Posts: 734	Re: Truck oil pan ? Maybe he's not done cleaning it up... the thread wasn't titled " how's my sandblasting job?" It's a dam sight cleaner than mine will ever be.

03-01-2025, 08:20 AM	#13
jetmek Senior Member Join Date: May 2010 Location: albany Posts: 494	Re: Truck oil pan ? Thanks. Its prob is a military truck part __________________ engine and component overhauls my specialty! Website- www.godevilgarage.com