valve adjustment - JeepForum.com

 
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post #1 of 7 Old 10-01-2005, 01:05 PM Thread Starter
diesel158
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valve adjustment

I did a search but didn't come up with what I'm looking for. Valve cover was leaking so I pulled it to replace the gasket,of course the plastic cover is full of cracks so that's gotta go.While I have the cover off I figured I'd adjust the valves but there is a clip that joins the rockers together on each cylinder so they can't be adjusted independently.How are they adjusted? Also,1 push rod is turning a little slow. Thanks


leave the gun,take the canoli's
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post #2 of 7 Old 10-01-2005, 10:08 PM
sloth665
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What year is your jeep and what
engine is in it?
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post #3 of 7 Old 10-01-2005, 11:02 PM
Cobra Jeep
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Umm, if they are the bridged type rockers you speak of, then they are not adjustable. The bolts are simply torqued down to spec and thats it, no adjustment.

'93 YJ 4.0L, AX-15, NP-231HD/SYE, 8.8in rear, OME 2.5 lift, home made front hub conversion, hydroboost. Warn M10000 winch. Currently building a stroker.

'79 Cherokee Chief, 401 MPFI fuel injection, T-18/D-20 and hydroboost. Otherwise stock.
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post #4 of 7 Old 10-02-2005, 07:47 AM Thread Starter
diesel158
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it's an '87 with the 4.2. Not being able to adjust the valves is a real bad design.I know they sell a roller rocker kit for that engine,what's the point in not being able to adjust them? There has to be a way.

leave the gun,take the canoli's
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post #5 of 7 Old 10-02-2005, 10:10 AM
91GTA350
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If i am not mistaken our engines have hydraulic lifters. I think the lifters are suposed to have some sort of automatic adjustment.

-89 sahara 258: HAD a peugot and a d35
5/15/05 - took ownership and started money pit
9/17/05 - found a 3.5' deep water hole
2/18/06 - destroyed spiders in d35
4.2/AX-15/NP-231/SYE/30/8.8/3.55/RE 2.5"/31"
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post #6 of 7 Old 10-02-2005, 11:27 AM Thread Starter
diesel158
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yes,we have hydraulic lifters but they should be adjustable through the rockers.

leave the gun,take the canoli's
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post #7 of 7 Old 10-02-2005, 07:08 PM
Cobra Jeep
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Nope, no adjustment. You just torque them down to spec and go. All jeep 2.5's, 4.2's, 4.0's, and AMC V8's (304-360-401) are like that.

'93 YJ 4.0L, AX-15, NP-231HD/SYE, 8.8in rear, OME 2.5 lift, home made front hub conversion, hydroboost. Warn M10000 winch. Currently building a stroker.

'79 Cherokee Chief, 401 MPFI fuel injection, T-18/D-20 and hydroboost. Otherwise stock.
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