Low Oil Pressure At Idle

[JFP in PA]

Originally Posted by gabedrummin

JFP Can the oil pump be removed with the motor in the car ? I did do the oil pump bypass with updated spring and plunger .Thanks for your help sir..!

Yes, and as the cassette shares the metal gasket with the water pump, it is a good time to replace the water pump and the oil pump drive shaft which is an investment cast piece of crap that is known to snap. LN has a chrome moly replacement for about $20.

[Most_Wanted]

About to replace the valve/spring on mine. After installing is it recommended to "prime" the engine before starting to build oil pressure? Or is it ok to start immediately after install?

[jaykay]

Gents,

Is there torque value reference anywhere for the oil pump pressure relief spring and piston retaining plug.....it much like a drain plug with a crush ring.

I am just changing the 986 stocker to the updated spring (996) and piston (997)...yes late to the party.

I can post an image if the item the part(s) I am referring to are not clear.

[911monty]

Yep the bolt/cap should be torqued to 18ft/lbs (or 25Nm)

[jaykay]

okay thanks very much....I found a Rennlist post with a value much higher....probably mapped from the stock oil pan drain which is 37 FTBS - 50 Nm. I have not had the stock pan and plug for many years and this seems high to me.

Where the heck is this documented..

[jaykay]

Originally Posted by JFP in PA

Yes, and as the cassette shares the metal gasket with the water pump, it is a good time to replace the water pump and the oil pump drive shaft which is an investment cast piece of crap that is known to snap. LN has a chrome moly replacement for about $20.

Hats off to those able to do this in the car. Maybe a lift gives better perspective. It is tight up in there. Next time I have the firewall cover off I will look at ....but wow!