Timing chain and gears, Commercial equivalent?

[papakb]

Does anyone know if there is a commercial crossover for the timing chain and geras in the 151?

 

[lpcoating]

The 151 does not have a timing chain. Just gears.

 

[hambone]

And you very seldom find them worn out, but most vendors have parts for repair, not sure about civy equiv.

 

[papakb]

Thank you guys. I was using my 151 to move my 101 trailer around when I heard a bang and it started smoking and running very rough. I thought it might have been due to a timing chain slippage but now I see that probably didn't happen. This evening I pulled the valve cover and everything there looks normal. No broken springs or bent pushrods. I ran a compression check and they all came in around 120 psi so where do I go now? Pull the pack and drop the pan? Could this be a broken crank problem? The clutch and trans still feel normal. Any suggestions would be appreciated.

 

[hambone]

I would drain the oil and look for any evidence of metal, if you have access to a scope, you could look in the cylinders and oil pan.