Not so budget turbo install

[isuzutoo-eh]

haha yes.

hopefully I can get it running this weekend..

Woohoo! Try not to pull a muscle from smiling

[rar110]

I'm looking forward to reports about the wta intercooler performance.

[flagg]

It's going! ..kind of, but has two oil related problems.



For the exhaust side of the turbo, is this OK? There is an oily residue around the inside and as you can see a small pool that has developed. If it had been revving really hard I would expect it but I only really idled it for a bit and gave it moderated revs for a short time before I noticed the trail of 'precious bodily fluids' it was leaving behind.



Sadly the trail is from the Y where the turbo feed and the alt feed join.. which is a right PITA to get too :/ You can't torque the joiner properly as it moves around so I'm going to have to take the whole thing out and do it in a vice.

[Dougal]

What is your crankcase breather setup?

[flagg]

Provent 200. The head breather was open for test..

[two up]

Does the turbo have a built in oil restrictor? Is it possible that the combination of turbo and alternator return is causing oil to back up to the turbo that may have damaged the oil seals, are you getting oil on the compressor side too. What you describe occurred to my gt2860rs before I fitted a restrictor.

[Dougal]

Provent 200. The head breather was open for test..

I'd run it and see what happens. Turbos do rely on pressure in the turbine and exhaust housings to keep oil in the centre housing.

Is the turbo sucking on the provent? You've seen what one of those did to my engine?

[flagg]

Does the turbo have a built in oil restrictor? Is it possible that the combination of turbo and alternator return is causing oil to back up to the turbo that may have damaged the oil seals, are you getting oil on the compressor side too. What you describe occurred to my gt2860rs before I fitted a restrictor.

Thanks two up. The BorgWarner EFR turbos have an internal restrictor, so can't have an external one like the garrets.



I haven't checked inlet side, but will have a look.

[flagg]

Originally Posted by flagg
Provent 200. The head breather was open for test..

I'd run it and see what happens. Turbos do rely on pressure in the turbine and exhaust housings to keep oil in the centre housing.





Is the turbo sucking on the provent? You've seen what one of those did to my engine?

In just using the provent as an expensive catch can right now.. It isn't connected to the inlet. But will connect it before engineering. Its mounted up high and will have the check valve on the drain.. I read your thread with interest but thought the check valve and mounting hight resolved it..



Emissions is the primary concern of my engineer so open ventilation isn't going to be an option..

[Dougal]

In just using the provent as an expensive catch can right now.. It isn't connected to the inlet. But will connect it before engineering. Its mounted up high and will have the check valve on the drain.. I read your thread with interest but thought the check valve and mounting hight resolved it..

Emissions is the primary concern of my engineer so open ventilation isn't going to be an option..

To ensure no oil gets into your turbo, you need to reverse the flow of the provent. The design of the valve to the outlet (to turbo) means it catches draining oil that then has nowhere for it to go except out through the turbo.

If you run it factory plumbed, I'd suggest putting a big uphill section of piping from provent to turbo inlet. This will keep the oil draining down and hopefully limit the amount of oil fed straight into your engine.

Mine is now reversed so the lower hose is the inlet and all the oil stays down low. The flow to the turbo is both uphill and filtered by the internal strainer. This way it works as a seperator and can't feed oil to the intake, but it's the complete opposite to design.