Gas vapor out the secondaries at WOT

[Tealliberator]

I experienced compression tester failures due to a fitting malfunction. Air fitting was leaking badly. Try another compression tester or tighten its fittings. Trust me!!!

Thank you. Both old and new testers read the same. I think they are reading correctly. I just don't know why.

 

[tank1949]

Thank you. Both old and new testers read the same. I think they are reading correctly. I just don't know why.

If accurate, time for a tear down! Sorry....

 

[Tealliberator]

I experienced compression tester failures due to a fitting malfunction. Air fitting was leaking badly. Try another compression tester or tighten its fittings. Trust me!!!

I've got a mess. Head gasket completely blown out between cylinders 1 and 3. Intake valve cupped on cylinder 5. The engine has to come out. Thank you all for the help.

 

[Bondo]

I've got a mess. Head gasket completely blown out between cylinders 1 and 3. Intake valve cupped on cylinder 5. The engine has to come out. Thank you all for the help.

Ayuh,..... Welcome Aboard,..... Now is also the time to figure out what caused all this damage,......

My waGuess is, detonation, brought on by a lean condition,.....

 

[tank1949]

I've got a mess. Head gasket completely blown out between cylinders 1 and 3. Intake valve cupped on cylinder 5. The engine has to come out. Thank you all for the help.

That's an old motor. If salt used, I'd be looking for a new block. I don't believe TB 4 had knock sensors and cheap gas may have caused pre-det. problem. Examine heads carefully. I once purchased reconditioned heads that the shop swore had never been in salt water. However, the last water passage near the flywheel rusted towards the combustion chamber and allowed water in. End of motor! Good luck!