Timing chain tensioners
#2
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
^^^An arm and at least half a leg... you probably don’t need the tension era themselves replaced - only the pads. You can only do the cam chain pads. Probably in the ballpark of $1500 to $2k... In order to do the main and IMS tensioner pads, you need to split the crank case...Take it to a reputable shop for an estimate...Mo money!
#4
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Ametcalf
I have quite a rattle on cold starts. Does anybody have an idea how much it costs to have chain tensioners replaced? 99 996 with 100k miles.
The following 2 users liked this post by Noz1974:
brianmch (01-08-2021),
Ratchet1025 (03-28-2020)
#7
Three Wheelin'
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
If those two items are a question.. Stop and back slowly away from the engine.
Your many hours of reading and searching.. away from being ready to DIY this..
If your just messing with us ,,, well played...
Your many hours of reading and searching.. away from being ready to DIY this..
If your just messing with us ,,, well played...
The following 3 users liked this post by pdxmotorhead:
Trending Topics
#8
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Just did the tensioners on my 99 Boxster, was able to do all 3 without disturbing the AC compressor, however, there was much foul language which decorum prohibits the repetition of here. I think my head twisted around 360 degrees at one point ala Reagan in "The Exorcist" (or was that the great 996 coolant reservoir replacement debacle?) Anyway, I second pdxmotorhead's suggestion to the OP of doing much more research/reading before attempting this as a DIY, yer messing with your cam timing here and if you pooch the job you could have your timing chains skipping teeth on the timing gear inside the engine. Just sayin.
The following users liked this post:
Gingerman (03-15-2020)
#9
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
I just paid my mechanic to both bank tensioner pads on my ‘99 (64,000 miles). They were both worn. It was $4,000, including a $500 failed solenoid on one side.
The following users liked this post:
Ratchet1025 (03-28-2020)
#10
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Once the chain rails/pads start to wear, they go fast (I've read) and should be replaced sooner rather than later. Will new tensioners take up all the slack in a worn pad?
#11
Rennlist Member
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
My cam deviation went back to (0,0) from (-3,-2) once the pads were replaced. I assume the chain slack is now tighter, but I would guess only on cold start. Once the tensioners have sufficient oil pressure (they are the last endpoint in the oil deliver system in the engine), I would expect the chains to be tight when the engine is running in either case.
#13
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Mike Murphy
I just paid my mechanic to both bank tensioner pads on my ‘99 (64,000 miles). They were both worn. It was $4,000, including a $500 failed solenoid on one side.
Originally Posted by 808Bill
Once the chain rails/pads start to wear, they go fast (I've read) and should be replaced sooner rather than later. Will new tensioners take up all the slack in a worn pad?
#14
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Originally Posted by Ametcalf
How do I lock the crank and what is TDC?
The following 2 users liked this post by Noz1974:
Metty (03-15-2020),
Ratchet1025 (03-28-2020)