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Hyd. Lifter Pump Up ? #221234
02/11/09 04:17 PM
02/11/09 04:17 PM
Joined: Jan 2003
Posts: 864
St Paul MN
7
73swinger Offline OP
super stock
73swinger  Offline OP
super stock
7

Joined: Jan 2003
Posts: 864
St Paul MN
What exactly does Hydraulic lifter pump up mean, and what does it do.
This is in reference to lifters advertised as Anti Pump Up.

Thanks


Chris Schwartz 73 Swinger 340 12.451 @ 108.78 73 Gold Duster, needs a plan.
Re: Hyd. Lifter Pump Up ? [Re: 73swinger] #221235
02/11/09 07:10 PM
02/11/09 07:10 PM
Joined: Aug 2004
Posts: 3,333
MARYLAND
69Cuda340S Offline
master
69Cuda340S  Offline
master

Joined: Aug 2004
Posts: 3,333
MARYLAND
My understanding is when the lifters pump up past zero lash they prevent the valves from closing all the way. It can also reduce piston to valve clearance.







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