This is fascinating.

@sergiosergio68

3 жыл бұрын

I know Im pretty off topic but do anybody know of a good place to stream new series online?

@jerrykayson4145

3 жыл бұрын

@Sergio Sergio Lately I have been using Flixzone. Just search on google for it =)

Very informative John. Thank you very much for all the effort in making this video. I know that takes a lot of work.

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.

great informative vid john thanks...

Thank you for the video,very instructive and very interesting.

Very interesting video. Thanks.

are those little plugs you are refereed to are known as A COLD WELD? WHAT A GREAT VIDEO...A LOT OF LEARNING YOU HAVE PROVIDED HERE JOHN...

Great details

How many cracked model a blocks in peoples cars are out there running around today with the owner having no idea he has a crack in his block?

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.

can you drill a hole at the ends of the crack to keep it from "running" then weld grind and weld the crack with nickle rod?

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

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.

@bryanswenson1452

3 жыл бұрын

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?

Could you just pressurize and wait to see if it drops?

Does anybody manufacture these engine blocks/heads anymore.

you could use a spray bottle for the soap like they do on tires great video!!

@peanutbutterisfu

7 жыл бұрын

bikejunk1 that's what I was gonna type. No idea why he uses a paint brush lol

Spray bottles are much easier...just sayin

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