Is a timing chain tensioner a good idea
#1
Is a timing chain tensioner a good idea
I have a 98 Blazer with a L35 engine.
If I replace it with a rebuilt GM engine does any one know if a timing chain tensioner is recommended? The local dealer parts department does not know anything about it.
I understand that GM had a tech bulletin at one time about putting one on this engine.
If I replace it with a rebuilt GM engine does any one know if a timing chain tensioner is recommended? The local dealer parts department does not know anything about it.
I understand that GM had a tech bulletin at one time about putting one on this engine.
#2
My understanding with GM Goodwrench engine or transmission that any improvements that was implemented for your application has been applied. I have both a GM Goodwrench Engine and Transmission in my 89 S15 and I have had no issues with either one. I know my engine did not have a timing belt tensioner installed. I installed the engine myself. I have close to 100K on the GM Goodwrench Engine.
#3
I decided to pickup a GM remanufactured engine for my 98 at the local dealer since my engine had spun a connecting rod bearing. Mine could be rebuilt but I need to get it back up quickly and the dealer price was within $500 of my cost for machine and parts. 3 year , 100k warranty included.
It turns out that the GM engine uses the same silent chain style timing chain as the original. I had 154,000 on it and it never made any timing chain or balance noise.
After some research it seems that the tensioners are only used with roller style chains.
If I rebuilt the original I think I would consider a double roller chain and a tensioner. But I still have my doubts that it is really needed since I have built a bunch of small block V8's and never used one.
It turns out that the GM engine uses the same silent chain style timing chain as the original. I had 154,000 on it and it never made any timing chain or balance noise.
After some research it seems that the tensioners are only used with roller style chains.
If I rebuilt the original I think I would consider a double roller chain and a tensioner. But I still have my doubts that it is really needed since I have built a bunch of small block V8's and never used one.
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