There are some pretty amazing sealers out there these days. I'd damn sure give sealing that cooling system up with one of those on the bench before I'd throw a bunch of money at a "maybe" repair stitching. And by the way, how much air pressure are you putting to that block? Its pretty easy to make leaks with excessive pressure and AIR IS THINNER THAN WATER.
good night , i have a ford , year 29 i live in Campinas SP Brazil i have a problem , water passed into the engine through the inlet valve of the fourth cylinder , the gasket is not burnt , i can not know how this water passed i have already removed the valve and i didn't see any cracks, can you give me any tips
Thats like the welding inspection work i did the last 14 years. Mostly the powder is for hot surfaces because otherwise the oil will vaporate. Nice job you did. I have a 1940 Opel Kadett and the engine is almost the same.
It looks to me like you could just as easily use the cylinder head itself. You'd have to flip the engine over and work from the bottom side looking for leaks or simply use a shut-off valve on your air supply, pressurize the block and see if it holds pressure. I've seen the "stitching" videos and I read about the process long ago but honestly I'm not sure why anyone would go clear down the cylinder wall "stitching" the block if its going to be bored and sleeved anyway. Obviously if a guy is going to rebuild an engine completely for a full restoration or race use, he'd want the block repaired properly, but I have a feeling there were tons of those old engines running around back in the day with cracks in the and nobody ever had a clue. I don't think they had pressurized cooling systems and typically cracks get smaller as the block heats up rather than larger. The low compression ratio might prevent any leakage of cylinder pressure into the cooling system anyway. I think there's also a pretty good chance that will a full modern rebuilt to gnat's ass specs and particularly with big compression and temperature increases in a high-performance applications, even a "good" block via pre-overhaul pressure test might end up cracked anyway.
Hi John Where do I go to purchase this testing apparatus. Could you provide the name of it and a couple of address's or phone numbers to purchase them?
