Replace timing chain tensioners
Thread Starter
|
Junior Member
Joined: Sep 2014
Posts: 14
Likes: 2
From: Santa clara, Ca
Replace timing chain tensioners
Replacing valve cover gaskets on 2000 xkr,63k miles and want to know if I should attempt to replace tensioner at same time. Have heard original ones will shatter mercilessly any day now. vin number is PA 04543 so car has original version tensioners
Joined: Dec 2011
Posts: 120,439
Likes: 17,009
From: Durham, UK
I've moved your question from General Tech Help to XK8/XKR forum. This is the place to post technical questions about your model.
I would definitely go for the latest metal tensioners and draw a line under the risk of failure.
Graham
I would definitely go for the latest metal tensioners and draw a line under the risk of failure.
Graham
Veteran Member
Joined: May 2012
Posts: 3,290
Likes: 1,328
From: Winchester, CA
Absolutely!!!. If you don't have the metal body tensioners you really should change them while you have the cam covers off. You might be lucky and once you remove the covers you find they have already been changed.
Below is a posting for using the zip tie method. It works and makes it relatively easy for a DIY.
https://www.jaguarforums.com/forum/x...ics-how-52653/
Below is a posting for using the zip tie method. It works and makes it relatively easy for a DIY.
https://www.jaguarforums.com/forum/x...ics-how-52653/
Thread Starter
|
Junior Member
Joined: Sep 2014
Posts: 14
Likes: 2
From: Santa clara, Ca
Tricks to remove old tensioner
thanks for the feedback am going ahead with replacing existing tensioners. It looks like old tensioner will just slide out from underneath timing chain as no ridges etc on front of plastic shim (pulling it back away from front of car) once hold down bolts are removed. Is it really necessary to remove cam cap bolts?
no parts til Monday so I’ve got time to scope it out. ( maybe not such a good idea)
no parts til Monday so I’ve got time to scope it out. ( maybe not such a good idea)
Veteran Member
Joined: May 2012
Posts: 3,290
Likes: 1,328
From: Winchester, CA
The zip tie method is the simplest. And, yes you must remove 1 camshaft. The tensioner will not come out from underneath. You remove the cam bearing covers and lift it up then just tilt it up from the rear to get the tensioner out.
Also when you order the tensioners make sure to order the shorter bolts. Pay attention to the cam bearing covers they are numbered in the order installed and the direction.
Get yourself a good 1/4 inch drive torque wrench that has an NM scale. Harbor Freight has one for around $10.00 or so.
Also when you order the tensioners make sure to order the shorter bolts. Pay attention to the cam bearing covers they are numbered in the order installed and the direction.
Get yourself a good 1/4 inch drive torque wrench that has an NM scale. Harbor Freight has one for around $10.00 or so.
Thread Starter
|
Junior Member
Joined: Sep 2014
Posts: 14
Likes: 2
From: Santa clara, Ca
Got it! Just back from Home Depot with 24 mm socket so I can turn crank and get all cam lobes off of valves. Looks like the lower cam shaft where im putting the zip ties is the easiest to loosen and tilt up?
Senior Member
Joined: Jul 2018
Posts: 125
Likes: 64
From: Maryland
Yes, the "lower" camshaft in each bank is the exhaust camshaft. The intake camshaft also has the primary timing chain sprocket on it and would require a lot more work to tilt up.
Last edited by Ronald Vennell; Sep 9, 2018 at 07:24 AM.
Trending Topics
Thread Starter
|
Junior Member
Joined: Sep 2014
Posts: 14
Likes: 2
From: Santa clara, Ca
Thank you all (Graham, Vern, zip tie creator, Ron) all for the valuable information. Plan to get new tensioners tomorrow when parts Dept is open. Will remember to get shorter bolts as well! Will post “successful” outcome shortly!
Thread Starter
|
Junior Member
Joined: Sep 2014
Posts: 14
Likes: 2
From: Santa clara, Ca
OEM or after market chain tensioners
Wow. Dealer wants 450 bucks for both tensioners and that’s without new bolts. Looks like Eurospare sells same parts on Amazon for like 75 bucks each. Has anyone used these instead of OEM? Will they work as well?
Veteran Member
Joined: Dec 2010
Posts: 2,125
Likes: 279
From: Holly Lake Ranch, Texas
The below link will take you to the sticky that I did at 41K miles on the upper tensioners. I wasn't as careful about getting the cam flats aligned up with the head surfaces as I probably should have been. But since all I did was raise and lower the cam uniformly for the length of the cam there was no problem. Be on the safe side and get the cam flats at the front of the cams horizontal with the head mating surfaces. The right one is pretty close. The left one could have been better. But it worked and all is well.
https://www.jaguarforums.com/forum/x...ics-how-52653/
https://www.jaguarforums.com/forum/x...ics-how-52653/
Thread
Thread Starter
Forum
Replies
Last Post
Brake buster
XJ XJ8 / XJR ( X308 )
406
May 10, 2024 06:25 AM
dan02xk8
XK8 / XKR ( X100 )
31
Mar 30, 2019 10:41 AM
slanham
General Tech Help
1
Feb 1, 2014 06:34 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)