timing chains

[zeebee 0]

Hi all, is there any reason why I cant change the tensioners on the timing chains? What is involved with changing the upper tensioner? Is the upper the one that is a bolt on the back of the head? As you are no doubt aware I am a novice with these motors but am a reasonable diy mechanic so I don't see why the chains have to be changed as well as the tensioners? Could I change the lower tensioner without removing the gearbox? Thanks for your help. Steve

[russj249 2]

Yes you can change the top tensioner without much work. It's a 27mm bolt on the back. However its not normally these that go, chances are more like that the plastic tensioner and guide that have worn down not the tensioning bolt.

Removal of the top cover is 100% recommended, which by the time you've done that, removed rocker cover, inlet manifold etc, you may as well change the chains and the lot.. and if you replace the top, you may as well replace the bottom etc etc

You should PM a chap on here called Tony, he will sort a good price for chains if he's over your way.

And from personal experiance, chains aren't that easy if you're only a DIY mechanic. I'm a mechanic by trade and still didn't really like doing it! LOL

[russj249 2]

Oh, and gearbox removal is necessary for bottom guides and chains etc