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Gems front cover by pass valve

Posted: Thu Mar 19, 2020 1:29 pm
by DavidAll
The front cover arrived back from the vapour blaster with a bag of bits.

Thanks to Turner engineering who supplied a new piston for the oil pressure relief valve.

The oil pressure by pass valve has a hollow cylinder within the spring but what I don't know is should the relief valve have one too?
IMG_20200319_111227158.jpg

Re: Gems front cover by pass valve

Posted: Thu Mar 19, 2020 3:28 pm
by ChrisJC
RAVE makes no mention of the insert. It specifically shows the piston, spring, end-cap and o-ring.

Chris.

Re: Gems front cover by pass valve

Posted: Thu Mar 19, 2020 3:33 pm
by DavidAll
Thanks Chris,

my workshop manual and parts book makes no mention of the cylinder in either so I'm always a bit suspicious. It's a peculiar area with some vehicles having both and some, presumably without an oil cooler, only having the by pass valve with the other capped off.