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gazdon

Member

• Oct 14, 2012

• #1

isit possible to change the valve stem seals with the heads left on 4.6 v8 as i did change seals in the past on a 2.8 xr4x4 with the heads on by putting rope down the bores to keep the valves up.

 

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Thor1950

Well-Known Member

• Oct 14, 2012

• #2

gazdon said:

isit possible to change the valve stem seals with the heads left on 4.6 v8 as i did change seals in the past on a 2.8 xr4x4 with the heads on by putting rope down the bores to keep the valves up.

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take a old spark plug save the hex and threads knock everything else off it and Braze a air fitting to it, screw back into the spark plug hole and let the air keep the valves closed

 

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gazdon

Member

• Oct 14, 2012

• #3

isit common for the stem seals to faill on the 4.6

 

jt_armstrong

Well-Known Member

• Oct 14, 2012

• #4

I'm not sure how much of a difference the stem seals actually make. You dont need to go too far back in history to find that the same basic engine was never fitted with them at all. I think it was just one of the little things that LR did to improve emmissions.