Vehicle & Technical > Defender

pushrods

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Les Henson:
Undo the tappet adjusters as far as they will go, then check to see if each rocker is loose on the rocker shaft. If there's any play, then the bushes and probably the shaft has worn. You can remove the pushrods with a bit of care without removing the rocker assembly and then be able to look down the pushrod holes to see if the slides are damaged. The slides come as a kit - slide, roller, and sleeve, and to replace them you would have to remove the head.





Les.

trickydicky:
thank for that i think it will have to wait a week or 2 though taking the head off sounds like a masive job

StuB:
I did a head gasket on my 2.5NA and thought all was OK until fired up to have a missfire looked at rockers and No 1 was not opening, investigated by removing the rocker asy and found broken base tappet, removed head again and renewed all 8 as  a precaution, refitted and great! this was a result of having a 'ticking noise' and slight missfire (head gasket).I'm sure your ok to do this in 4hrs like me.

trickydicky:
thanks for that mate what do i need to do the job?

Les Henson:
The guide, slide, and roller come as a kit.
Not sure what engine you have, but TD and N/A engine it's 507829 (x8?) - 200 & 300TDi is RTC6564 (x8?).
You will need a head gasket of the same thickness as your old one. Possibly also rocker cover gasket and inlet/exhaust manifold gasket.

2.25/2.5 N/A, T/D engine head gasket replacement -

http://forums.lr4x4.com/index.php?showtopic=12895

200TDi-

http://forums.lr4x4.com/index.php?showtopic=30111

300TDi-

http://forums.lr4x4.com/index.php?showtopic=8179


Les.

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