The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 12-14 degrees of slop.

toolboxchev · 07-24-2018, 01:44 PM

Get the numbers off the block, Yes GM did use those plastic coated gear sets. But not in the original motors. Even if you have an original motor it does not guarantee you do not have metal gear sets, someone could have rebuild it with that crap.

I did a top end rebuild on my original motor with a dual roller set 75k miles ago, I have 2 degrees of slop in the timing chain now. That should give you something to gauge what you have going on without tearing the motor apart.

Lots of people neglected these vehicles for years and did not realize how much of a working machine they are.

07-24-2018, 01:44 PM	#7
toolboxchev Registered User Join Date: Jul 2015 Location: 2nd left past the stump on a dirt road. Posts: 2,629	Re: 12-14 degrees of slop. Get the numbers off the block, Yes GM did use those plastic coated gear sets. But not in the original motors. Even if you have an original motor it does not guarantee you do not have metal gear sets, someone could have rebuild it with that crap. I did a top end rebuild on my original motor with a dual roller set 75k miles ago, I have 2 degrees of slop in the timing chain now. That should give you something to gauge what you have going on without tearing the motor apart. Lots of people neglected these vehicles for years and did not realize how much of a working machine they are.