Al Gietzen wrote:

That doesn't apply to third generation and 20B where the oil return is
to the filter block; unless you make for a different entry to the oil
gallery. I designed a bypass block for the 20B which I showed here about
6-months ago that handles the job, and provides ports for redrive feed
and a pressure or temp probe.

Only problem is the guy who machined them has apparently lost the
drawing.

Al

Yes. That is because the motor mount is down there I think. I forgot
Bulent is using a Cosmo engine probably with the same end housing as the 20B.

Best to return oil to the top of the front end housing in that case.
I think that is a 16 mm 1.5 straight thread for a banjo fitting in the
2nd gen turbo. I do not know what that opening is for the
3rd gen and 20B.

Paul Lamar

In regards to the oil filter relocation plate- the one I made was near 
identical except that I did not incorporate o-rings in mine. My question 
to those who might know- is my scheme to just use some sort of sealant(instead 
of o-rings) between the filter mount boss and my relocation plate likely to 
fail? Even with some super duper urethane type sealant?

 One of the things that I did(on the cheap naturally) was to tap the oil 
filter mount to accept NPT fittings. So, I've got the banjo fitting hole
(Which I will put a Mazdatrix fitting in)
and an inlet and outlet hole on the bottom).I'll attach a photo 
of it as soon as I get home.

Also, as far as the banjo fitting on the oil filter mount goes - that 
passage on the engine goes to the pressure relief valve.
This complicates the arrangement of of oil lines from the oil cooler 
into and out of the relocation plate and relocated oil cooler, along 
with a oil supply to the redrive(Tracy's). But, using the schematic that 
you attached, it's all doable. Also, as you can see by the schematic, 
the Gen III doesn't have the oil inlet down lown on the lower left part 
of the rear housing.

Brian Trubee

 
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