hard spinning turbo

Post by **240r** » Mon Jun 30, 2003 9:39 am

Is the sr turbo suppose to be easy to spin, or is it hard. My turbo is kind of hard to spin. I got my engine from Cartune, the shop thats doing my swap sent the turbo back, and sammy the owner of cartune said it was ok, he said that he had it checked out by a turbo specialist and there was nothing wrong with it. So he sent it back to us. He also said that he has a HKS ballbearing turbo and it spins hard to. So any of you know if it's true.

Post by **Zaxx84** » Mon Jun 30, 2003 9:39 am

All you have to do is give a light flick and mine spins pretty freely. My buddy just got a new T3/T04 on his Probe GT, same way, nice and easy. Exactly how much pressure do you have to use to spin it?

Post by **240_Keyy** » Mon Jun 30, 2003 9:39 am

you can almost spin mine by blowing on it. all you have to do is barely flick it with your fingers and it will spin for a few seconds...

Post by **240r** » Mon Jun 30, 2003 9:39 am

is that your stock one 240_keyy

Post by **GraySilvia** » Mon Jun 30, 2003 9:39 am

Ummm, if it hasn't been run in a while, the center section gets dry and there's no oil for the bearings, so, yes, it should be hard to spin. The 'bushing' turbos actually are supported by a thin layer of oil. Once it's on the car and running, it should free up quite nicely. Just so long as there is minimal shaft play, which i suspect is the case since your turbo was checked out and found to be ok, then you should be fine. I wouldn't worry about it.

Post by **BuudWeizErr** » Mon Jun 30, 2003 9:39 am

I don't know how much I trust it or Cartune. My turbo wasn't hard to turn at all when it was on the stand.

Post by **charlotte240** » Mon Jun 30, 2003 9:39 am

So when first starting the engine, is it necessary to prime the turbo? I've heard that you can do this by cranking the engine while unplugging the cam angle sensor (so it wont fire). If that is the case, then cant you just turn the engine on and let it idle? I wouldn't think that there would be enough exhaust flow to make the turbo spin all that much when at idle, and by the time it heats up, there will already be oil in the turbo.

Post by **240_Keyy** » Mon Jun 30, 2003 9:39 am

ok here is some clarmafimication for you guys. Shortly after i pulled the motor from the clip I pulled off the turbo assembly to make sure that it spins ok. And lo and behold it spun rather freely. It should never be hard to spin, that could mean that the oil has coked up in the center section and possibly that the oil bearing things in there are fuxored.

Hell when I went to forced performance I toyed around with a lot of their turbos and all of them spun very easily. With the ballbearing ones you could blow on them and they would spin.

I need a BB turbo

BTW: You must also prime the turbo, but it doesn't take long at all to do that, like maybe 10 to 15 seconds of cranking the motor with the CAS unplugged...

Post by **ImportIntelligence** » Mon Jun 30, 2003 9:39 am

charlotte240 wrote:So when first starting the engine, is it necessary to prime the turbo? I've heard that you can do this by cranking the engine while unplugging the cam angle sensor (so it wont fire). If that is the case, then cant you just turn the engine on and let it idle? I wouldn't think that there would be enough exhaust flow to make the turbo spin all that much when at idle, and by the time it heats up, there will already be oil in the turbo.

You sahould always prime the SR20's by unplugging the CAS and cranking it over until you see oil drip from the cam spray bar with the oil cap off. We use this method as a general rule, starting a motor that has been sitting without priming leads to pre-mature engine failre. As far as the turbo being hard to turn, prime the motor and start it up, it's probabaly been sitting for awhile or just needs a good dose of heat to free it up.

Post by **Onizuka** » Mon Jun 30, 2003 9:39 am

my new turbo spins when i blow on it, it has never had oil in it (unless they put oil in it at the factory). I dunno if that helps.

Post by **240r** » Mon Jun 30, 2003 9:39 am

anyone know what turbo will fit? I'm just afraid that it might be busted.

Post by **hokiruu** » Mon Jun 30, 2003 9:39 am

All kinds of t25 flange turbos fit man. There's almost endless possibilities.

Post by **ItzGenX** » Mon Jun 30, 2003 9:39 am

My S13 Blacktop came in today and the turbo was pretty seized up. I thought, man this sucks. Then I checked for shaft play-NONE! So I figure this turbo hasn't been through much yet. I looked at the turbo and there was oil and dirt all up in there. So I bought a can of degreaser and hosed it on down to where it looked like a brand new turbo, sprayed WD40 in it, then poured some motor oil through the oil drain hole. The turbo now isn't seized but takes a little effort to spin it. I think its fine because it isn't ball bearing with no shaft play, so oil + heat will get it going totally free again.

Post by **240_Keyy** » Mon Jun 30, 2003 9:39 am

oil and dirt in the turbo? dude where did you get your motor from?

I am interested to see if it works. Mine spun like a charm...

Post by **ItzGenX** » Mon Jun 30, 2003 9:39 am

Don't worry about where I got it from ;D. You can tell the motor was just tipped and turned during shipping to have oil everywhere. It really wasn't dirt, it was oil mixed with saw dust. I guess the saw dust got in there because the intake plumbing wasn't taped or capped off.

Post by **GraySilvia** » Mon Jun 30, 2003 9:39 am

Last SR I got had a shard of glass just hanging out in the compressor inlet...musta fallen off a front clip somewhere???!!!

Post by **240_Keyy** » Mon Jun 30, 2003 9:39 am

you guys are nuts! lol, a turbo should never be hard to spin, if it is in perfect working order it will spin freely...

Post by **Zaxx84** » Mon Jun 30, 2003 9:39 am

240_Keyy wrote:you guys are nuts! lol, a turbo should never be hard to spin, if it is in perfect working order it will spin freely...

:Werd

Post by **RobDET** » Mon Jun 30, 2003 9:39 am

I want to the local U-pull-it yard and they have an old 200SX with the turbo motor in it. The turbo spun like a charm no shaft play or anything. If it wasn't so dirty i'de have taken it just to have a cool turbo for my desk at work

Post by **Unnatural** » Mon Jun 30, 2003 9:39 am

ItzGenX wrote:My S13 Blacktop came in today and the turbo was pretty seized up. I thought, man this sucks. Then I checked for shaft play-NONE! So I figure this turbo hasn't been through much yet. I looked at the turbo and there was oil and dirt all up in there. So I bought a can of degreaser and hosed it on down to where it looked like a brand new turbo, sprayed WD40 in it, then poured some motor oil through the oil drain hole. The turbo now isn't seized but takes a little effort to spin it. I think its fine because it isn't ball bearing with no shaft play, so oil + heat will get it going totally free again.

GenX if there is any debris in the CHRA (bearing section) of that turbo it's going to be history. A turbo spins at many times the speed of the engine. It won't take long to die at that speed.

I'm gonna have to agree with 240_Keyy on this one. Regardless of the type of bearing used, BB or full floating "bushing", a GOOD turbo will ALWAYS spin freely.~Brendan

Post by **ItzGenX** » Mon Jun 30, 2003 9:39 am

Mine spins great now that I've cleaned it all out.

hard spinning turbo

hard spinning turbo

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