Toyota Celica GT4 ST185 PCV problems

Am not familiar with the 3S-GTE but as far as general PCV systems go, its far better (and really the only way to do it) to dismantle it completely into its component parts and clean each hose / trap / gauze / cam cover etc etc with carb cleaner / dishwasher before reassembly.

Running with a blocked PVC / pressurised block (especially when under boost) is not good and you'll end up blowing out an oil seal, possibly one of the crank ones, which is a nightmare.

Tim..

There is one hose that goes into the intake. This links to a short metal pipe that goes into the cam cover. Inside the cam cover it is just a series of channels with a baffle plate covering them. No trap, no gauze/filter, no one way/flkame trap valves etc.

I think it may have been like that for a while (at least 6 months) and ben blowing oil from the dipstick among other places (haven't located the other places yet). I don't think it is fully blocked as there still some oily residue gets through into the intake pipes before the turbo, but I think it is definatley restricted, and casuign pressurisation problems.

Intercooler isn't too bad. Had that off and cleaned it with petrol a while ago.

I'd suggest you bite the bullet and take the cover off. Remove the baffle plates and clean it properly. I can't see any type of spray cleaner clearing it, if it is blocked. Having said that, I wonder if that actually is the problem. What was the inside of the cover like? I removed the baffle plates on the last GT4 head I reconned. Apart from being slightly discoloured inside, it was perfectly clear, inc the exit pipe. It would take a helluva lot of crud to block the entrance to the pipe. IMO the most likely place for a blockage is the pipe itself, particularly at the elbow, which you might be able to clear without stripping. Mike.

There was some soft crud reducing the opening on the cover exit pipe to about 1/3rd the diameter it is supposed to be.

After scraping that out, it seemed to pulse at idle better. The soft pipe with the elbow appears pretty clear.

I sprayed a lot of brake cleaner down that to. Car seemed to fly afterwards, apart from the beltching white smoke for about 1/2 an hours hard driving. Not smoked since, and appears to drive better now. Could just be the new thinner oil (10w40 semi instead of 10w60 full), could just be imagining it. Will find out in about 1 1/2 weeks. Will check at the weekend, but can't see it losing much in two days.