Double Roller Timing Chain?
Double Roller Timing Chain?
So my dak is sitting for the winter since I'm offically in school to become an Auto Tech. While its sitting like this I'd like to do a few projects like namely finding out what my rattle is.
But talking to an older friend of mine whose had his way around an engine a few times around. He suggested theres a pretty good chance that it could be my timing chain(after I explained to him the details of the sound). While I have no way of knowing for sure it did bring to light that I don't know when the chain was last done on the truck so either way it would be a good idea to rip that cover open and test the chains play and the condition of the gears in there.
If it was bad I was thinking of going for a Double roller chain but theres a few things I'm confused about. I'm aware they're much more reliable and durable etc. But I've been told I may have to get a larger timer cover for this. The chain I've sourced out is a Cloyes chain for about 80$. The person i dealt with at my parts store told me the kit mentioned nothing about needing a larger cover.
If anyone knows anything more about this or has a better chain to suggest I'm open ears. Thanks guys
But talking to an older friend of mine whose had his way around an engine a few times around. He suggested theres a pretty good chance that it could be my timing chain(after I explained to him the details of the sound). While I have no way of knowing for sure it did bring to light that I don't know when the chain was last done on the truck so either way it would be a good idea to rip that cover open and test the chains play and the condition of the gears in there.
If it was bad I was thinking of going for a Double roller chain but theres a few things I'm confused about. I'm aware they're much more reliable and durable etc. But I've been told I may have to get a larger timer cover for this. The chain I've sourced out is a Cloyes chain for about 80$. The person i dealt with at my parts store told me the kit mentioned nothing about needing a larger cover.
If anyone knows anything more about this or has a better chain to suggest I'm open ears. Thanks guys
Record Breaker
Joined: Mar 2009
Posts: 2,181
Likes: 3
From: Battle Ground WA
Power doesn't have anything to do with it, the stock chain stretches a lot. And they don't make any noise either. No need for a new timing cover.
Record Breaker
Joined: Apr 2010
Posts: 1,745
Likes: 50
if yours is a 3.9 then yes it probably needs changed if over 100K miles they have a distinct tell all sound and being an odd fore design engine they tend to need chain replacement more likely tahn V8 trucks
that said I cheaped out and went with a standard stock type replacement chain set on mine and within 10K miles it was noisey again; a good double roller set will be quieter than a stretched out chain set. I wont make that mistake again; when I re replace the chain it WILL get a double roller.
like anything there are different quality grades here. Now I aint sayin that you need super duper billet this or that get a good grade of "performance" timing chain set; I have not had as good of luck from Cloyes as in the older days the last several I have bought have been Edelbrock and I have been happy with them. They run about $65-70 for the chain and both sprockets. It's a good afternoon's job if youve done a few if not it could take you a bit longer; its the same amount of work to cheap out as to put something good quality in there, personally I hate redo's so I'd rather spend a few more bucks on the front end than to have to do a job over in a short time due to having used cheap parts.
a double roller is no more noisey than a stock type chain iin the same condition.
Back in the 60s they (all carmakers) started putting a cam sprocket in with nylon teeth in all but heavy duty engines because they thought this would quiet the engine. Not really. on the aftermarket its rare to see any timing chain set like this they have metal sprockets for both cam and crank. and when in good condition youre hard pressed to hear any noise out of the timing chain set.
on the new cover needed; Olds V8s were notorious for taht in the 70s and early 80s.
I have heard of a couple on Chrysler engines doing the same but in the (too many to count over the years) Chrysler engines I have been "into" I have never ever seen this happen in 30 years of playing with engines of all sorts
that said I cheaped out and went with a standard stock type replacement chain set on mine and within 10K miles it was noisey again; a good double roller set will be quieter than a stretched out chain set. I wont make that mistake again; when I re replace the chain it WILL get a double roller.
like anything there are different quality grades here. Now I aint sayin that you need super duper billet this or that get a good grade of "performance" timing chain set; I have not had as good of luck from Cloyes as in the older days the last several I have bought have been Edelbrock and I have been happy with them. They run about $65-70 for the chain and both sprockets. It's a good afternoon's job if youve done a few if not it could take you a bit longer; its the same amount of work to cheap out as to put something good quality in there, personally I hate redo's so I'd rather spend a few more bucks on the front end than to have to do a job over in a short time due to having used cheap parts.
a double roller is no more noisey than a stock type chain iin the same condition.
Back in the 60s they (all carmakers) started putting a cam sprocket in with nylon teeth in all but heavy duty engines because they thought this would quiet the engine. Not really. on the aftermarket its rare to see any timing chain set like this they have metal sprockets for both cam and crank. and when in good condition youre hard pressed to hear any noise out of the timing chain set.
on the new cover needed; Olds V8s were notorious for taht in the 70s and early 80s.
I have heard of a couple on Chrysler engines doing the same but in the (too many to count over the years) Chrysler engines I have been "into" I have never ever seen this happen in 30 years of playing with engines of all sorts
Captain
Joined: Jan 2008
Posts: 533
Likes: 1
on the new cover needed; Olds V8s were notorious for taht in the 70s and early 80s.
I have heard of a couple on Chrysler engines doing the same but in the (too many to count over the years) Chrysler engines I have been "into" I have never ever seen this happen in 30 years of playing with engines of all sorts
I have heard of a couple on Chrysler engines doing the same but in the (too many to count over the years) Chrysler engines I have been "into" I have never ever seen this happen in 30 years of playing with engines of all sorts
Also Idk about the new cover needed on olds motors... I don't see how or why you would need one. Olds motors have a flat metal cover that is only a cover, the "case" around the chain is part of the block. Unless maybe due to corrosion from the water ports. I have never really heard of that being an issue though.