James Woods

iTrader: (1)

He actually put all the piping on and started a new thread earlier today, don't know if anything has changed or not.

1993hiluxsr5

The turbo has very very little shaft play left and right and none what so ever in and out, and my turbo produces very little boost when free reving it works much better under load, also when I had the pressure pipes off I did t drive the vehicle any more than 500m around me house and the turbo intake was perfectly clean.
And now I have it all hooked up it does actually work, boosts about 0.6 bar, and it works well, but I cannot see into the intake pipes to inspect the oil problem.

shaeff

Good.

You're not supposed to be able to boost from free revving it. Under load is normal.

Ah, I read 500m as 500 miles. LOL I was very concerned. But I realize now that you're talking about meters!

A little oil in your intake won't matter much. Ideally you want none, but it does happen. Hopefully it'll stop now that you've got all your piping all hooked up. Just pop the intake pipes off after some driving around and check them for excessive oil.

Where does your PCV enter the intake system?

1993hiluxsr5

Well good news guys I've talked to the guys I bought it off and they said sorry and are sending a repair kit out to me asap, I was like WOW, they offer no warranty yet they will send me a repair kit 1 month after purchase, great guys !!
So it should all be okay when I rebuild the turbo in the bear futur . Thanks for all your help guys !!

shaeff

Make sure you get it balanced after the rebuild. Without a balance it'll shred itself.

blake.nemitz

Or make sure you mark the shaft in relation to the compressor wheel to put it back together the same way it came apart. On the ones ive rebuilt td04 and td05 i did this and they are still alive years later, just make sure it lines up exactly or a small imbalance especially on journal bearings will eat it up at the incredible rpm these things spin at

shaeff

While that may work on a turbo that was balanced once before, if he did the rebuild on this turbo before it failed then chances are that it hasn't been balanced.

I would always default to having it professionally balanced as generally it will save the end user money in the long run.

1993hiluxsr5

I know this is a dumb question but, why does it have to be balanced, I would have thought a product with such high rpms would have parts that are Already balanced ?

1993hiluxsr5

Hey guys, I have a quick question, how do I adjust the boost on a ct20 turbo ? Because at the moment it only boosts 0.5/0.6 bar, and apparently theyrr set at 10psi from factory thats about 0.7/0.8 bar, I've tried the washer stacking but my bolts wernt long enough and it made no difference
How do I do it ?

shaeff

Any time it's disassembled it should be rebalanced. Any inconsistencies in balance will shred it at high RPM.

Manual boost controller would be your best bet. Get a ball and spring type. Is your wastegate operating properly? Have a good vacuum source for it?

blake.nemitz

waste gate should open om boost, shorten the rod from the diaphram to the actuator if its set up like that

Dongskie

any updates on this?