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All intake valves closed ? #4663788
02/12/18 10:59 AM
02/12/18 10:59 AM
Joined: Apr 2008
Posts: 1,833
IL
Ndx Offline OP
Ndx  Offline OP
Joined: Apr 2008
Posts: 1,833
IL
Heyyaa


I removed intake manifold of V8 Porsche Panamera and I checked all intake holes and all valves seem to be closed ?
I was under impression that all valves can't be in closed position ?

Thank's

Re: All intake valves closed ? [Re: Ndx] #4663862
02/12/18 12:03 PM
02/12/18 12:03 PM
Joined: Nov 2008
Posts: 12,861
NH
supton Offline
supton  Offline
Joined: Nov 2008
Posts: 12,861
NH
Originally Posted By: Ndx
Heyyaa


I removed intake manifold of V8 Porsche Panamera and I checked all intake holes and all valves seem to be closed ?
I was under impression that all valves can't be in closed position ?

Thank's


Hydraulic lifters? I'm not sure how far down they can compress, I'd think they'd still be open a bit even without oil pressure.


2011 Toyota Camry, base, 2.5L/6MT, 176k, hers
2010 Toyota Tundra DC, 4.6L/6AT, 145k, ours
1999 Toyota Camry LE, 2.2L/4AT, 199k, his
Re: All intake valves closed ? [Re: Ndx] #4663864
02/12/18 12:06 PM
02/12/18 12:06 PM
Joined: Jun 2017
Posts: 650
DFW
JustN89 Offline
JustN89  Offline
Joined: Jun 2017
Posts: 650
DFW
I'm pretty sure Porsche's VarioCam allows them all to be closed when engine is off.


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