Worn out Cam Chain

[Giovanni89]

:shakehead: only 50K miles on this. I was in a time crunch and got this as a full kit on amazon. Should have known better. Just ordered up a quality set of chains and guides from Randy at Engine Machine Service.

https://youtu.be/2y_DPN6qEL4

[pennyman1]

only buy name brand timing chain kits if you are keeping the truck

[Giovanni89]

i guess it's a good chance to take off my delco alternator bracket and do a write up :rolleyes:

[pennyman1]

there was someone on eBay selling the brackets to do the conversion to a Delco alternator for a starquest a while back. I had a friend with an alternator shop modify the A/C bracket for the old York style compressor to make the Delco fit. The wiring part is also important, as they come in single and 3 wire variants.

[Giovanni89]

Pennyman, do you think the Schneider heavy duty valve springs I put in could have anything to do with the chain stretching so fast, or do you think it was just a junk chain?

[pennyman1]

I have never heard of a chain stretching due to valve springs - it had to be a junk chain.

[geezer101]

HD springs do load up the valvetrain but I'd be curious to see what the guides look like. For it to stretch that much there's got to be something wrong - that timing chain looks like it's done a lot more work than the miles you say it's had. It probably hasn't been heat treated and that's whats caused it to stretch like chewing gum...