XJ8 Engine help

Double check valve clearances; hope you did not rotate your cams whilst installed on the engine. It sounds more like cam timing.

Blake

I meant rotate the cams to "time" them, then attach timing drives. Could bend a valve(s).

Hello,

Yes this engine uses shim over bucket design. What this means is that the adjustment shim resides on top of the tappet. A special tool is needed to compress the spring far enough that you can use a "bugger" hook or compressed air to blast it out of its recess.

I have read one chap that replaced his flywheel/flex plate at the advice of Jaguar, and I ask "why"? Anyway, this fellow removed the sensor in the housing and located the triangular mark. After pulling his hair out he realized that the hole for the alignment dowel was not lined up. So he ignored the mark and inserted his dowel, then checked cam timing. The factory mismarked the new wheel! He's in a going machine again.

And on a sour note - the right head gasket is doing the same job as the left, would'nt it be prudent to change this one as well?

Blake

Go back to the garage. DO NOT go to the receptionist wearing the suit. Walk around to the mechanics, see if you can spot one with a cup of coffee having a break, ask them if they have a couple of minutes spare. Mechanics usually love their cars, especially true of my experience of Jag mechanics who are very proud to be working at main dealers on such cars. They will tell you anything you want to know. Drop them a bit of cash and they may even pop the bonnet and fix it.

Russ.

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