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Discussion in 'The Garage' started by 91GMCSuburban, Nov 15, 2004.
Need to know the amount of play a timing chain should have as installed?
Not sure of the actual measurement, and I couldnt find it for you anywhere. I just know it by feel. There should be slight movement side to side if you move it with your hand. Overall it should be fairly tight, using a slight amount of pressure to move. Kinda hard to explain, try telling us how much play you have and we will go from there.
If you have it apart, just replace it. Timing chains are $20, it's not worth it not to change it.
My mechanic said that there was between 15 and 20 degrees of play. And to him, this was just fine. Just looking for a second opinion.
Why wouldn't you change it if you're in there?
Cost. If I can save the money and put it into the engine I am building... He quoted me $250 to change the chain. Because of this, I wanted him to check it first.
That is an outragous price assuming he already has access to it. I would change it anyway since they are cheap, it should only take him 10 minutes to do if he already has access to it.
Every chevy motor I've owned needed(and got)a new timing chain and gears--mostly due to the junk nylon toothed cam gear--if your motor has that style gear,get rid of it--all of my motors had the nylon teeth stuck in the oil pump screen,and more than 1 tooth probably made it into the pump.I did the timing chain and gears in the 305 I put in my 79 C10 due to this,and a new oil pump and drivshaft(steel sleeve instead of the plastic POS factory one),it only cost 22 bucks for Cloyes timing chain and gears,12.99 for a stock melling oil pump,5.99 for the driveshaft/steel coollar dewhickey at autozone--well worth it to me for peice of mind on the highway--and I am the cheapest &(^$$ there is /forums/images/graemlins/deal.gif--some things you just shouldnt skimp on! /forums/images/graemlins/crazy.gif
I agree 250 bucks is a lot of cash to put the chain and gears on--even if it meant pulling the radiator and water pump and timing cover,its still pretty steep,unless its in a van or a really difficult truck to work on.... /forums/images/graemlins/thinking.gif
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