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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Valve adjustment?

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Old Jul 27, 2021 | 11:03 AM
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Question Valve adjustment?

Hi yall!
I wanna know how to adjust the valves on a 1988 F-250 351w? I will change my original cam for a Comp cam 35-255-5, and I wanna know if I need to adjust my valves and if yes, how to adjust them after to install my new one?
Its a hydraulic flat tappet

Thank you in advance.
 
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Old Jul 27, 2021 | 11:24 AM
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Depends on if the cam is solid lifter or not. If it's a hydraulic cam, which is most likely, then it adjusts automatically.
 
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Old Jul 27, 2021 | 04:28 PM
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There are no valve adjustments on these motors, when assembling the motor the rocker bolts are simply torqued to spec while noting that all slack is removed just before the bolt reaches torque. If that doesn't happen longer pushrods are necessary.
 
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Old Jul 28, 2021 | 06:38 AM
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as its a hydraulic flat tappet ?
 
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Old Jul 28, 2021 | 06:40 AM
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Originally Posted by Conanski
There are no valve adjustments on these motors, when assembling the motor the rocker bolts are simply torqued to spec while noting that all slack is removed just before the bolt reaches torque. If that doesn't happen longer pushrods are necessary.
Even if its a hydraulic flat tappet ?
What are the specs to torque ?
Thanks !
 
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