Question about timing chain/tensioner on 2.2L engine
 

I have a 2002 S10,2.2L engine. I saw a Cloyes timing chain set that claims it's designed to eliminate the tensioner.
Has anyone used one ,and is it good,or bad?

Re: Question about timing chain/tensioner on 2.2L engine
 

From what I had read, OEM is the only way to go, and is what my truck got when I replaced it. Just have to use the new chain oiler plug with the larger hole in it.

Re: Question about timing chain/tensioner on 2.2L engine
 

Is yours from the dealer,or aftermarket?

Re: Question about timing chain/tensioner on 2.2L engine
 

I bought it from someone, who had bought it from the dealer and never used it.

Re: Question about timing chain/tensioner on 2.2L engine
 

Ok, thanks.
I'm just curious about the quality of the ones from AutoZone.
Don't want any screw ups ,since I'm in it already ,for almost $800 .
New head,water pump,radiator,t-stat, gaskets etc.
As for the oiler orifice,...didn't GM update that,in later ones ?

Re: Question about timing chain/tensioner on 2.2L engine
 

Did you happen to do engine bearings as well? That's what happened to me, new head & head gasket, timing chain, etc. at 150K. Ended up spinning a rod bearing 5K later. I knew I had developed oil pressure issues shortly after the head swap, and decided to run it til she blew. Now doing a rebuilt short block bottom end with the new(ish) head swapped over.

I was told it was an after the fact change, not sure if they were updated or not. I have an '03.

From what I had read on another forum, the non-OE ones wear out a lot quicker. I would rather spend the money up front and not have to buy more parts (or my labor time) on the back end.

Re: Question about timing chain/tensioner on 2.2L engine
 

New OEM at the dealers are $265,for all the pieces(chain,gears,tensioner are sold separately).
This engine was overheated due to extended use of E-85. Wore holes next to th valves,into the water passage.
Had he block checked,and bearings are all fine,since no coolant in the oil pan.
Radiator tank blew out from t-stat locking closed.
So, I'm changing everything,to be safe.

Re: Question about timing chain/tensioner on 2.2L engine
 

How is it possible for E85 to do that? E85 burns cooler. It certainly can't eat metal inside a passage like that. If so, I'd sure like to know how.

Re: Question about timing chain/tensioner on 2.2L engine
 

Ethanol doesn't make as much hp,as gasoline,therefore the engine works harder to do the same work.
The owner's manual of this truck states that if E-85 is used,the loadshould be reduced to 500lbs,the speed is reduced,and the truck should NOT pull a trailer,as overheating/engine damage can occur.
The damage was caused by hauling ,at highway speeds,and when the head over heated the coolant damaged the chamber side of the head.

Re: Question about timing chain/tensioner on 2.2L engine
 

Interesting. Optimizing the engine for E85 would make it difficult to burn regular gasoline. The mods are similar to propane or CNG.