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Oil separator under cam cover NLA

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Old 02-15-2021, 09:43 PM
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pmooradian
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Resent from pmooradian@aol.com
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Old 02-15-2021, 10:11 PM
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Originally Posted by GregBBRD
Pretty simple...after a bunch of designing and testing, we came up with an improved oil separator for the inside of the valve cover/covers (depending on when your '93 was produced.)
While this will not repair the terrible design problem with the piston oil return passages not being drilled through in the GTS models, it will certainly reduce the amount of oil that gets to the intake manifold.

And although things have been a bit confused here, (two of my four mechanics out for injuries.) I'm pretty sure I have not seen your email about a transmission.
Please resend to GregBBRD@aol.com.
My GTS was manufactured in 3/92. SN PS815099
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Old 02-15-2021, 11:10 PM
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Originally Posted by pmooradian
My GTS was manufactured in 3/92. SN PS815099
That's probably "early".
Most likely it has two 90 degree elbows coming out of the passenger valve cover and no elbows coming out of the driver's valve cover (with a cross over hose to the passenger side.)
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Old 02-16-2021, 10:37 AM
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I think so.
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Old 02-16-2021, 12:40 PM
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Originally Posted by pmooradian
My GTS was manufactured in 3/92. SN PS815099

Paul,
Mine is an April 1992 with VIN ending in 815085. Early for sure. Very close on the line.
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Old 02-16-2021, 04:59 PM
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Mike,

Have you had that car at 928 Frenzy in VA in the past few years?
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Old 02-16-2021, 05:23 PM
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Originally Posted by pmooradian
I think so.
Your engine is plumbed like a '91 engine.
One of the three different ways Porsche plumbed the GTS models.
Porsche had a terrible time with oil consumption on the GTS models, once they eliminated the oil return holes in the pistons.
Which they never were able to solve.
Last edited by GregBBRD; 02-16-2021 at 05:25 PM.
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Old 02-16-2021, 11:05 PM
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My GTS burns about 1 qt every 1,500-2,000 miles. Always has. Assuming your solution would help with that, how do I order?
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Old 02-17-2021, 01:06 AM
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Originally Posted by pmooradian
My GTS burns about 1 qt every 1,500-2,000 miles. Always has. Assuming your solution would help with that, how do I order?
That's fantastic and tough to improve, on a GTS!
However, since the valve covers are off, the pieces are so economical, and you are missing a breather, it would be almost silly to not to install a pair.
You can call Mary at 714 879 9072 and she will ship you a pair, with instructions and tools.

Last edited by GregBBRD; 02-17-2021 at 01:10 AM.
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Old 02-17-2021, 09:43 AM
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The valve covers are off on the S4 engine I'm putting into an '89 I bought last year that didn't have an engine. That's the one missing the oil separator. When I'm done with that, I'll tackle the GTS.
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Old 02-17-2021, 09:52 AM
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Originally Posted by GregBBRD
Your engine is plumbed like a '91 engine.
One of the three different ways Porsche plumbed the GTS models.
Porsche had a terrible time with oil consumption on the GTS models, once they eliminated the oil return holes in the pistons.
Which they never were able to solve.
Looks like it has a GTS filler neck (with the right-side port) and some sort of hose that ain’t the uber-twisty GTS hose. Or, it does and the hose was put on wrong.
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Old 02-17-2021, 10:42 AM
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Originally Posted by pmooradian
Mike,

Have you had that car at 928 Frenzy in VA in the past few years?

Paul, I had it there 2018 I believe almost a year after I bought it. I alternate year with my three. Lagoon Green in my signature here.

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Old 02-17-2021, 09:29 PM
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Pretty sure I saw it there. I remember seeing a GTS with a VIN close to mine. That was a short time after I brought my GTS here from NorCal. Runs much better on 93 octane than the 91 swill I had to put in the tank in CA.
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Old 02-17-2021, 09:44 PM
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Originally Posted by buccicone
Paul, I had it there 2018 I believe almost a year after I bought it. I alternate year with my three. Lagoon Green in my signature here.
Beautiful car! I've lost track but I think I'm on 928 #15 now. My GTS and CA '89 are in my signature pic. I'm working on another '89 I bought last year here in WV. The black '88 pictured below was my son's college graduation present. He has it in GA now. I can't imagine not having at least one. Next project will be restoring the GTS since I've put almost 178k miles on it. She's looking her age.



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Old 02-18-2021, 12:42 AM
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Originally Posted by GregBBRD
Your engine is plumbed like a '91 engine.
One of the three different ways Porsche plumbed the GTS models.
Porsche had a terrible time with oil consumption on the GTS models, once they eliminated the oil return holes in the pistons.
Which they never were able to solve.
Greg, sent you a mail from francesco.tiepolo1 at g mail dot com, for that improved breather.
My engine is the same, 92 GTS.
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