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Jeep-Short Wheelbase All discussion of short wheelbase Jeeps: CJ, TJ, YJ and JK

 
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post #1 of (permalink) Old 03-07-2008, 07:55 PM Thread Starter
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rocker play

Hi

I'm putting a 4.0 head from a '95 Cherokee onto my CJ7 with a 1973 Jeepster 258 in it.

In bolting down the rockers using 19 ft*lbs there are times in the stroke in which there is a lot of play in the rockers and push rods and they are tight (can't spin the push rods with my fingers) at other times in the stroke.

I'm using the push rods from the 258 motor.

Before the swap there was a little tick in the motor...

My questions...

Is 19 ft*lbs an okay torque to use? I got the info from another thread on another board...

How much play/slop is acceptable? I think my buddy thought I had as much as .02" between the rocker and spring...little less than a match book cover...


Thanks!
Patrick

why yes, yes i am a moron

Last edited by OIIIIIIIO; 03-07-2008 at 08:10 PM.
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post #2 of (permalink) Old 03-07-2008, 08:16 PM
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HTH...from my FSM:

Quote:
INSTALLATION
(1) Lubricate the ball ends of the push rods with Mopar Engine Oil Supplement, or equivalent and install push rods in their original locations. Ensure that the bottom end of each push rod is centered in the tappet plunger cap seat.
(2) Using Mopar Engine Oil Supplement, or equivalent, lubricate the area of the rocker arm that the pivot contacts. Install rocker arms, pivots and bridge above each cylinder in their original position.
(3) Loosely install the capscrews through each bridge.
(4) At each bridge, tighten the capscrews alternately, one turn at a time, to avoid damaging the bridge. Tighten the capscrews to 28 Nzm (21 ft. lbs.)
torque.
(5) Install the engine cylinder head cover.
Also, you may want to pump up the lifters and see if it's more to your liking.
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post #3 of (permalink) Old 03-07-2008, 08:26 PM Thread Starter
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Hi

Excuse the dum question which will lead others to ask..."why is this guy doing this project? He's way to dum to be doing this and will surely screw something up..."

But what is involved in pumping up the lifters?

I'm sure my buddy who's watching over my shoulder as I work will have an idea but I'd like to have on too...

Thanks!
Patrick

why yes, yes i am a moron
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post #4 of (permalink) Old 03-07-2008, 09:03 PM
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You manually turn the oil pump with a screwdriver attached to a drill to circulate oil into the journals and galleys. Your not too dumb... you ask questions. Dumb people don't ask questions...
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