Loose timing chain replacement

[edgephoto]

Here is what the new chain looks like for reference. The chain and gears are original to this engine. I have owned the truck since 1988. Original cam gear was aluminum and had nylon covered teeth. GM did that to make the setup quiet.

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[dec322]

My new timing chain set is on the way…along with a tool to pull the camshaft pulley off. My current chai. Has about the same amount of slack as edgephoto’s first video

 

[peats]

Crank gear does not need to be removed to install a timing chain but cam gear will have to be unbolted.

 

[idahovette]

All the timing gear sets I've ever seen are matched sets........chain and both gears??

 

[dec322]

All the timing gear sets I've ever seen are matched sets........chain and both gears??

Mine is a matched set. I hope to replace it this weekend….if I have time.

 

[dec322]

If I had a cover laying around I would take a picture to show the modification. Easy to do. Front cover will be very hard / impossible to re-install without the modification or removing pan.

I just watched a video that showed this modification. Fast forward to right before he reinstalls the cover:

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