The Ford Barn

Stage1gs · 09-10-2023, 07:23 PM

Hello.. I had an oil leak on the front of my Model A engine oil pan that resulted from my crank pulley coming loose last year. It tore up the inside of the front pan where the seal goes, and I finally decided to change the pan. So I got a pan from a friend who rebuilds model an engines for a living, cleaned it up, straightened the flanges and put it on. The oil leak at the front stopped but now it’s leaking pretty bad in the back.

My old pan didn’t leak in the back, so it got me thinking. I am using the same brand of oil pan gasket, same engine block, same rear main cap, same weight oil, same snap in tray, and same oil pan bolts, so the difference seems like it’s related to the replacement oil pan.

I have a Model B engine in my garage with a Model A oil pan on it. I thought the rear cap on a B engine was bigger because the journal was bigger, and the oil pan gasket sets do have 2 different seals. So when someone puts a A oil pan on a B, do they just grind out some metal on the back of the pan to accommodate the bigger main cap?

That’s what it is starting to feel like to me.

09-10-2023, 07:23 PM	#1
Stage1gs Member Join Date: Nov 2014 Location: Grant, FL Posts: 37	Model A Oil Pan on Model B engine Hello.. I had an oil leak on the front of my Model A engine oil pan that resulted from my crank pulley coming loose last year. It tore up the inside of the front pan where the seal goes, and I finally decided to change the pan. So I got a pan from a friend who rebuilds model an engines for a living, cleaned it up, straightened the flanges and put it on. The oil leak at the front stopped but now it’s leaking pretty bad in the back. My old pan didn’t leak in the back, so it got me thinking. I am using the same brand of oil pan gasket, same engine block, same rear main cap, same weight oil, same snap in tray, and same oil pan bolts, so the difference seems like it’s related to the replacement oil pan. I have a Model B engine in my garage with a Model A oil pan on it. I thought the rear cap on a B engine was bigger because the journal was bigger, and the oil pan gasket sets do have 2 different seals. So when someone puts a A oil pan on a B, do they just grind out some metal on the back of the pan to accommodate the bigger main cap? That’s what it is starting to feel like to me.