XJLI
 
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Sept 8, 2008 22:26:40 GMT -5
mine need replacin'
i have good compression, but i blow heavy smoke at idle and low RPMs... basically while wheeling. and i lose a lot of oil. ive been looking around online at how to replace em, and it seems pretty easy. no removing the head which is a good thing. i'll probably do this winter break in my neighbor's garage who has every tool imaginable.
so is it an easy thing to do?
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Sept 9, 2008 17:36:12 GMT -5
what types of seals are they?
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XJLI
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Sept 9, 2008 18:04:18 GMT -5
what types of seals are they?   |
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Post by xjeeper on Sept 9, 2008 18:07:23 GMT -5
doesnt look like it should be too hard. just make sure to replace all the gaskets/seals and use the proper torque specs for the rockers and everything else
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XJLI
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Sept 9, 2008 18:12:12 GMT -5
yea thats what i figure. biggest problem would be dropping something down into the head, but if i make sure the piston im working is on is at TDC ill be fine. i figure ill check the pushrods and the rest of the valve train while im at it.
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Sept 9, 2008 18:20:27 GMT -5
dem be umbrella seals. is that the only seal they have?
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Post by 88XJchief on Sept 9, 2008 18:36:25 GMT -5
There is a tool make shure you dont drop anything into the cylinder. It screws into the spark plug hole and uses compressed air to hold the valves up.
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XJLI
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Sept 9, 2008 18:39:38 GMT -5
dem be umbrella seals. is that the only seal they have? rock auto = Felpro SS70819 valve stem seal set |
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XJLI
The Nina, The Pinta, The Santa Maria.
Posts: 6,923
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Post by XJLI on Sept 9, 2008 18:40:17 GMT -5
There is a tool make shure you dont drop anything into the cylinder. It screws into the spark plug hole and uses compressed air to hold the valves up. yea i read about that. theres a set i can rent/ i bet my neighbor already had it |
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crosbike
Swap Shop Cop
choo choo
Posts: 6,389
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Post by crosbike on Sept 9, 2008 18:41:12 GMT -5
i know some engines have 2 seals there. sounds like 4.0 have one.
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CSaddict
PayPal hater
I love Newbs.
Posts: 3,889
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Post by CSaddict on Sept 9, 2008 18:51:05 GMT -5
I've done Honda ones. The 4.0 is the same. Make sure you pressurize the cylinder to keep the valves from dropping in.
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