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tolley

Member Since: 07 Nov 2011
Location: gloucester
Posts: 1115

valve stem seals

any one renewed the valve stem seals ,with out taken the head off .

9th Feb 2019 7:36pm

jfh

Member Since: 08 Jan 2014
Location: West Coast
Posts: 360

2007 Defender 110 300 Tdi SW Chawton White

I will not recommended it.

There are 2 ways, I know of, to do it and I don't like any of these:

1. Compressed air to keep the valves up.

Or

2. Stuff rope in combustion chamber, turn engine to lock valves up.

Much easier with petrol engines.

I recommend get the extra gaskets and pull the head.

10th Feb 2019 12:34pm

Retroanaconda

Member Since: 04 Jan 2012
Location: Scotland
Posts: 2658

A Tdi has a very small gap between the piston and the valve, so they can be done in situ with the engine in the correct position.

https://forums.lr4x4.com/topic/97825-chang...h-head-on/

10th Feb 2019 12:37pm

jfh

Member Since: 08 Jan 2014
Location: West Coast
Posts: 360

Thanks! I love making useful tools.
I read the whole thread including the second one that he created.
Unfortunately this guy had quite a hassle to get everything right.

But the principal will work.

10th Feb 2019 1:25pm

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