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jcb teletruc

Number of messages: 3

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mart69
NE Lincs, United Kingdom

hi all

does anybody have the torque settings for the head bolts and valve clearances for a jcb teletruc with the GM engine in it

Thanks

Posted 16 Apr 2009 00:48 AM

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BobbyT
Wilts, United Kingdom

Hi Mart, here is an extract from the manual on the 3Ltr GM engine:

cylinder head bolts in sequence to 122 N•m (90 lb ft).

3. Adjust the valve rocker arm nuts as follows:
3.1. Turn the crankshaft until the mark on the crankshaft
pulley lines up with “0” on the timing tab and number 1
cylinder is at top dead center.
3.2. Place fingers on the number 1 valves as the mark
approaches “0.” If the valves move as the mark
approaches “0,” the engine is on number 4 top dead
center and should be rotated one more revolution in
order to reach number 1 top dead center.
3.3. With the engine at number 1 top dead center, adjust
the following valves:
– The exhaust valves 1,3
– The intake valves 1,2,4
3.4. Adjust the correct valves as follows:
3.4.1. Back off the valve rocker arm nut until the
lash is felt in the valve pushrod.
3.4.2. Tighten the valve rocker arm nut until all the
lash is removed.
3.4.3. Zero lash can be felt by moving the valve
pushrod up and down between your thumb
and forefinger until there is no more
movement.
3.4.4. When all the free play is gone, tighten the
valve rocker arm nut 1 additional turn (360
degrees).

Posted 16 Apr 2009 01:50 AM

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mart69
NE Lincs, United Kingdom

thanks for that great help

mart

Posted 16 Apr 2009 06:18 PM

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