XJ XJ8 / XJR ( X308 ) 1997 - 2003

Torque values required for timing tensioner components

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Old 08-31-2015, 11:29 AM
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Default Torque values required for timing tensioner components

This may have been talked about before in the past, however, I just wanted to bring it up again for anyone planning to replace their timing chain tensioners. I just replaced my secondary tensioners, and had to do some excessive research to find the CORRECT torque values.

I used the zip tie method and removed the exhaust cam, so I will make a list of all of the torque values for each component.

Valve cover: 84-96 inch pounds/7-8 foot pounds/9-11 Newton Meters

Secondary timing chain tensioners (with locktite): 89-124 inch pounds/7.4-10.3 foot pounds/ 10-14 Nm.

Secondary timing chain guide: 89-124 inch pounds/7.4-10.3 foot pounds/10-14 Nm.

Primary tensioner & backing plate: 89-124 inch pounds/7.4-10.3 foot pounds/10-14 Nm.

Exhaust & Intake VVT Sprocket: 1080-1104 inch pounds/85-92 foot pounds/115.2-124.7 Nm

Cam bearing caps: 84-96 inch pounds/7-8 foot pounds/9-11 Nm.


Remember, over torquing will likely result in broken & stretched bolts.
 
The following 4 users liked this post by Bcrary3:
JagBenny (12-26-2016), jrb53 (09-01-2015), NJ2003XJ8 (12-22-2022), ThatsNoMoon (12-10-2016)
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