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Acceptable Shaft Play In Journal Bearing Turbo

BAMR33

By BAMR33,
in Engines & Forced Induction

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BAMR33 Mentor

BAMR33

Posted
Posted

After taking my intake pipe off today I checked the shaft for any play. To my disappointment there was a noticeable amount. This is a journal bearing turbo and has been on the car for no longer 5 months.

When I first got the turbo there was basically no play what so ever, so is this normal for a journal bearing turbo to loosen up like this? And will it rapidly get worse or will it stay similar to what it is now?

It’s not making any different noises or blowing smoke from the exhaust so I’m not sure what to make of this, as most turbo’s on the way out usually show these signs.

7yphon Experienced

7yphon

Posted
Posted

When you say noticeable amount how much would you say its moving, And the only way to really know is to take it to a Turbo place and get them to look at the play and see what they say

BAMR33 Mentor

BAMR33

Posted
  • Author
Posted

Yep when I check it, it was a whole day without start. So I suppose it could just be oil float for the bearings.

It's really hard to say how much movement, best guess 2mm side to side.

I was really expecting there to be none given it's a near new turbo.

R31Nismoid Grand Master

R31Nismoid

Posted
Posted

There should be play.

There should not be none, that would indicate its seized :)

Journal bearing also has more than Ball Bearing, so 2mm of play IMO is nothing major. My old t04e gave a bit of movement

Side to side is ok if not excessive... in and out play would be bad news, but the sounds of it, your fine

subzeroR33 Mentor

subzeroR33

Posted
Posted
There should be play.

There should not be none, that would indicate its seized :)

Journal bearing also has more than Ball Bearing, so 2mm of play IMO is nothing major. My old t04e gave a bit of movement

Side to side is ok if not excessive... in and out play would be bad news, but the sounds of it, your fine

Shit mine goes in and out a bit by a couple of mm

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