The Ford Barn

FL&WVMIKE · 08-23-2018, 11:10 AM

I cleaned an engine with it out of the car and on an engine stand. The rear of the block was FULL of dirt/rust/etc. It was PILED UP back there.

Chemicals are good for surface rust. They will do NOTHING to clear out piled up debris in the back of the block. It will NEED scraped, and flushed out.

I dug at the block I did with skinny screwdrivers and coat hangers, then blasted the debris out with a pressure washer. That was round 1. This process was then repeated until it was clean. Simply pouring a chemical in there will do nothing. My advice, is to pull the heads, and do it in the car. Pulling the heads on these engines isn't a big deal. Just do it.

I would probably use the following method with the engine in the car:

1. Scrape with screwdrivers and coat hangers.
2. Use a shop vac reduced down to a 3/8" copper pipe to reach down in there and suck out the dislodged debris.
3. Use compressed air through a blow nozzle. See about attaching a length of 1/4" copper pipe to reach down and blow/dislodge debris... then suck it out with the shop vac.

Continue with these methods until it's clean.

To make a significant difference, you MUST use mechanical means to scrape all that crud out. Chemicals will be ineffective.

Good Luck!

08-23-2018, 11:10 AM	#18
FL&WVMIKE Senior Member Join Date: May 2010 Location: Daytona Beach, Fl & Spencer, W. Va, Posts: 4,449	Re: Evaporust question... I cleaned an engine with it out of the car and on an engine stand. The rear of the block was FULL of dirt/rust/etc. It was PILED UP back there. Chemicals are good for surface rust. They will do NOTHING to clear out piled up debris in the back of the block. It will NEED scraped, and flushed out. I dug at the block I did with skinny screwdrivers and coat hangers, then blasted the debris out with a pressure washer. That was round 1. This process was then repeated until it was clean. Simply pouring a chemical in there will do nothing. My advice, is to pull the heads, and do it in the car. Pulling the heads on these engines isn't a big deal. Just do it. I would probably use the following method with the engine in the car: 1. Scrape with screwdrivers and coat hangers. 2. Use a shop vac reduced down to a 3/8" copper pipe to reach down in there and suck out the dislodged debris. 3. Use compressed air through a blow nozzle. See about attaching a length of 1/4" copper pipe to reach down and blow/dislodge debris... then suck it out with the shop vac. Continue with these methods until it's clean. To make a significant difference, you MUST use mechanical means to scrape all that crud out. Chemicals will be ineffective. Good Luck! __________________ Mike Jr. here. I get on here every few months to check messages, and look through his almost 500 saved messages for information on the '29 and '34 I still have. A lot of very nice people on here. He truly enjoyed Ford Barn.