[V8] Hydraulic Valve Lifters

[bob moy]

Did you replace the valve guides?  Perhaps the valves guides were also 
damaged when the TB let loose.  Were the valve seats damaged?  You might 
have to take the head into a machine shop and have them replace valve 
guides, stem sealers and seats.

Remove the cams and lifters and see if the valves seat properly.


[V8] Hydraulic Valve Lifters
Duane Bookshar dbookshar at ameritech.net
Wed Jul 14 13:31:39 EDT 2004

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After a TB mishap resulting in a few bent valves, I decided to rebuild both
heads myself (thought it would be a good experience).  I had no problem with
the left head, but for some reason, on the right side some of the valves
wouldn't close completely.  I turned over the cams by hand a few turns, and
that helped, but one intake valve still won't completely close.  I removed
that cam and drained some oil from that lifter & reassembled it, but that
made no difference.

Is there a trick to bleeding these off to shorten them to allow the valves
to fully seat?  Or will they take care of themselves as long as I make sure
they won't hit the piston?  I can understand how they pump up to take up
valve clearance, but I can't seem to grasp how they can ever bleed off.

Thanks for any advice.  This "learning experience" has taken far longer than
I imagined and I'm anxious to get it back on the road.

Duane
90 V8Q 76K




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