Oil Pressure Relief Valve Assembly

Reply Subscribe

Thread Tools

Search this Thread

03-07-2010, 05:50 PM

#16

IXLR8

Rennlist Member

Join Date: Sep 2009

Location: Canada & the Alps

Posts: 8,353

Likes: 496

Received 645 Likes on 449 Posts

Quote:

Originally Posted by Sean Spicer

One more request -- what is the Torque spec for this assembly?

sean

If it is an M18 x 1.5, the spec for both are 60 Nm (44 lbf.ft.).

Reply Like

03-08-2010, 11:28 AM

#17

geolab

Rennlist Member

Join Date: May 2006

Location: Paris

Posts: 3,031

Likes: 97

Received 173 Likes on 119 Posts

Quote:

Originally Posted by IXLR8

I just added another diagram. The second pressure relief valve is next to the large oil line fitting.

I wonder what each pressure relief valve is for. Normally, there is only one on an engine.

the 993 oil pump is a dual stage superposed (over/under) pump.
High pressure stage, piston jets, bearings, etc
low pressure, cooling and return.
So two pressure relief valves
Both relief valve pistons seat in the pump core
one releases above 5 bar, and other above 9
regards

Reply Like

11-16-2018, 11:37 AM

#18

accted

Intermediate

Join Date: Nov 2018

Posts: 26

Likes: 0

Received 0 Likes on 0 Posts

Quote:

Originally Posted by IXLR8

If it is an M18 x 1.5, the spec for both are 60 Nm (44 lbf.ft.).

Mine is 2002 996 tt Turbo. I could not find online or get these specs from 996 turbo forum.

I have safety valve/piston mistaken opened :-(

Is this torque spec applied as well?

Thanks

Reply Like

Reply Subscribe