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Topic: PCV system Efficiency, maybe an option ? (Read 1113 times) previous topic - next topic

PCV system Efficiency, maybe an option ?

You all must be aware by now that I have this crazy car which has been a source of both pleasure and pain. I have some more pain but maybe not. So lets see what all of your opinions are on this. Here it is:

My Garrett T3/T4 seems to be smoking alot more now than when it first started (900 miles on the entire car now). I assume that the rear carbon seal in the turbine housing may be leaking and my PCV system may be contributing to that. Yes I have the proper Motorcraft PCV for my application and it is good. Compression test shows around 175 PSI all cylinders with about 5 PSI. Leakdown is about 20% (sure hope my rings seat soon !) Runs like a sonofabitch too! I fear that maybe I have equalized the atmospheric pressure and no longer have a positive ventilation through the cam cover. I drew up a small diagram so you may see what I mean.

I am just wandering if I add the check valve in the area indicated would this help? Also I have the system plumbed the way I do, so that under boost I can still pull any blowby through the intake instead of blowing oil out of evey orifice in this  engine.

Thoughts, comments, all is welcomed. Dont knock my artwork either :)
1985 Thunderbird TC
2.3l .03 over,Ported and polished Head and E6 Manifold, LA3, T3/T4 Hybrid Turbo, Stinger FMIC, Forge BOV, Full 3" Exhaust, Essy Timing Gears & UDP's, BBK 255lph Fuel Pump, Kirban AFPR, Kirban Short Shifter, K&N Cone, Forced4 VC Vent Kit, PA Performance 3g Alternator, Energy Suspension Bushings throughout, CHE LCA's, SFC's [/LEFT]

PCV system Efficiency, maybe an option ?

Reply #1 –
This is how I have mine. My rings are shot. Without running the PCV and catch can and all, I was blowing oil everywhere, blowing blue smoke out the tailpipe, and everything.
It's Gumby's fault.

PCV system Efficiency, maybe an option ?

Reply #2 –
Yeah, I had it the way you show but it didnt help. Its pretty much the factory setup you show you have.
1985 Thunderbird TC
2.3l .03 over,Ported and polished Head and E6 Manifold, LA3, T3/T4 Hybrid Turbo, Stinger FMIC, Forge BOV, Full 3" Exhaust, Essy Timing Gears & UDP's, BBK 255lph Fuel Pump, Kirban AFPR, Kirban Short Shifter, K&N Cone, Forced4 VC Vent Kit, PA Performance 3g Alternator, Energy Suspension Bushings throughout, CHE LCA's, SFC's [/LEFT]

PCV system Efficiency, maybe an option ?

Reply #3 –
Did you run the check valve too?
It's Gumby's fault.

PCV system Efficiency, maybe an option ?

Reply #4 –
I have no PCV valve in mine.

Here is a pic from before I swapped the engine.


The block breather runs directly to the catch can as does the v/c breather.  The port in the intake is plugged.

I run a small vac line to the turbo inlet to put a little vac on the can at all times.

No oil blowing or smoke (after I burned off the  in the exhaust from the cracked head). Also no chance of oil in the intake.
Long live the 4-eyes!  - '83 Tbird Turbo - '85 Marquis LTS - '86 LTD Wagon

PCV system Efficiency, maybe an option ?

Reply #5 –
Thanks Chuck, I think that is what I am going to try. I like your setup.

As it turns out though my problem with the smoke out of the exhaust was a bad carbon seal in the turbine housing. I have that getting fixed, so hopefully I will have no more problem with that.
1985 Thunderbird TC
2.3l .03 over,Ported and polished Head and E6 Manifold, LA3, T3/T4 Hybrid Turbo, Stinger FMIC, Forge BOV, Full 3" Exhaust, Essy Timing Gears & UDP's, BBK 255lph Fuel Pump, Kirban AFPR, Kirban Short Shifter, K&N Cone, Forced4 VC Vent Kit, PA Performance 3g Alternator, Energy Suspension Bushings throughout, CHE LCA's, SFC's [/LEFT]