Trap Oxidizer on 123 CA edition...ideas? - Page 3 - PeachParts Mercedes-Benz Forum

my123ca · #31 05-21-2017, 01:22 PM

Quote:

Originally Posted by vwbuge

PeachPartsWiki: Calf. to Fed. Emissions Conversion

Has anyone done this DIY? What other parts do i need besides the intake/exhaust manifold and fed downpipe? Ive had the older manifolds w/o the egr ports for quite awhile now. Post by FI says i can use the cal turbo. Worried about the turbo oil feed and drain pipes. Would the oil feed need modification to adapt to the fed setup? What about the oil drain tube? I have the upper oil drain tube from the fed.

ROLLGUY · #32 05-21-2017, 07:49 PM

Quote:

Originally Posted by my123ca

Has anyone done this DIY? What other parts do i need besides the intake/exhaust manifold and fed downpipe? Ive had the older manifolds w/o the egr ports for quite awhile now. Post by FI says i can use the cal turbo. Worried about the turbo oil feed and drain pipes. Would the oil feed need modification to adapt to the fed setup? What about the oil drain tube? I have the upper oil drain tube from the fed.

You would nee the Federal oil feed tube, as well as the drain tube. I understand that the Cali turbo should work, but the compressor housing needs to be clocked correctly. The turbo exhaust outlet may be different, or at least the mounting is in a different place (I think). It is best just to get the entire setup from the Federal engine. The Cali turbo will have the ARV. You can switch out the ARV housing for a non-ARV one.

BillGrissom · #33 05-22-2017, 01:06 AM

I am surprised that Rollguy didn't suggest his bypass tube (a different seller?). You unbolt the "trap oxidizer" and bolt the pipe in its place, officially as a "test device" so as not to offend CA emissions laws. Don't feel guilty to leave it in since not your fault you can't buy these replacement parts. BTW, your engine should have had the original "trap oxidizer" replaced by now w/ an "oxidation catalyst" which is more like the common catalytic converter on gas engines (honeycomb ceramic w/ rare metals). That was a recall. If so, it will look shiny like the attached photo. If not, check w/ local dealers since people were still getting that done free up to ~5 yrs ago I recall.

I recently rebuilt my 1985 CA turbo (Garrett) and plan to swap it into my 1984 when I get the car back from my son. I see no reason it wouldn't fit since both the exhaust and compressor housing can rotate to any desired angle and the outlets look the same. BTW, don't even think of loosening the exhaust housing bolts w/ turbo on car. The bolts by the oil ports are very hard to get a wrench on and takes hammering on the wrench to loosen them.

ROLLGUY · #34 05-22-2017, 09:46 AM

Quote:

Originally Posted by BillGrissom

I am surprised that Rollguy didn't suggest his bypass tube (a different seller?).

He said he had the non-EGR Federal manifolds, so I didn't suggest it. I think the Federal system is better, especially if non-EGR manifolds are available. If someone was to go out and buy all the parts to change to Federal, the "Test" pipe would be much easier and less expensive......Rich

EDIT: Also, the Cali air cleaner and parts are desirable to some, so those could be sold to offset the cost of parts.

DeliveryValve · #35 05-22-2017, 11:42 AM

I didn't see it mentioned here, but the '85 Cali does not have an oil drain in the upper pan for the crankcase oil separator. You'll need to fab up a catch can to catch the separated oil.

.

Tmadia · #36 05-22-2017, 01:34 PM

I have an '85 CA coupe and I just swapped the intake and exhaust over to the federal parts. They were super cheap and I think look much cleaner on the engine. I did retain the CA air filter because it is definitely superior to the federal even though the filter units are pricey.

The stock turbo fit just fine after rotating the compressor c housing. The only new part I bought was a new exhaust downpipe from the turbo. My old one was too rusty to cut and weld.

BillGrissom · #37 05-22-2017, 05:10 PM

DeliveryValve is correct, there is no stub on the 1985 CA engine upper oil pans for the drain from the 1984- air filter oil separator. I haven't had to deal w/ that in my 1985 since I installed an earlier engine when the 1985 engine failed. It would be almost impossible to change the upper oil pan w/o removing the engine so a catch can is a better approach. In 1985 CA cars, they ran the separated oil directly into the turbo, but that gunks up the compressor blades.

I prefer the 1985 CA frame-mounted air filter so much I put one on my 1984 engine, so no more shaking. I separate the oil from the valve cover vent using a silicone Tee and run a metal drain tube across to the 1984- drain tube. The "correct" air filters are $$$ so I simply stack 2 cheaper Wix filters (posted PN's several times, for 1980's Toyota MR2, I recall).

my123ca · #38 05-22-2017, 10:11 PM

Thanks for the replies guys. Attached are photos of the trap and the smaller bracket. The trap had separated from the flange and the smaller bracket broke into two pieces.

my123ca · #39 05-22-2017, 10:20 PM

Quote:

Originally Posted by Tmadia

I have an '85 CA coupe and I just swapped the intake and exhaust over to the federal parts. They were super cheap and I think look much cleaner on the engine. I did retain the CA air filter because it is definitely superior to the federal even though the filter units are pricey.

The stock turbo fit just fine after rotating the compressor c housing. The only new part I bought was a new exhaust downpipe from the turbo. My old one was too rusty to cut and weld.

How did you deal with the oil feed line and oil drain tube? I read that you can use the cal oil feed line by slightly bending it. I can go to the JY this weekend and look for a fed oil feed line (its 40% off). I already have the fed upper drain pipe. Do i need the bottom part too?

Tmadia · #40 05-23-2017, 12:17 AM

Quote:

Originally Posted by my123ca

How did you deal with the oil feed line and oil drain tube? I read that you can use the cal oil feed line by slightly bending it. I can go to the JY this weekend and look for a fed oil feed line (its 40% off). I already have the fed upper drain pipe. Do i need the bottom part too?

You may be able to use the CA parts, but I just used the federal parts for the oil feed and drain as well.

my123ca · #41 05-27-2017, 08:35 PM

Posted over the parts reference library but no reply.
Lower oil drain tube part# 6171871001 good for 85 Cali models? Pelican only list one for the '85D. Spent 4 hrs in the JY today trying to remove the turbo and oil feed line. Left the turbo there as it was stuck to the exhaust manifold. Brought home the oil feed tube.