Balancing turbo on rebuild.

474 Views 6 Replies 3 Participants Last post by 91DSX, May 13, 2005

cawcislo

Discussion Starter · May 12, 2005

If rebuilding a turbo most people say to balance it. Would this simply require the shaft with the compressor and turbine wheel attached (would look like a little dumbell almost) to be taken to a turbo shop to get them to balance it. Then simply mark the positions of the wheels and nuts and reassemble the shaft and wheels in the center section? Thanks.

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91DSX

· #2 · May 12, 2005

Take them the whole unit, they much prefer it that way, and yes ALL newly rebuilt turbos must be balanced!

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cawcislo

Discussion Starter · #3 · May 13, 2005

What do you mean by whole unit? The whole centre section (basically the whole turbo less the turbine and exhaust housings)?

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xrattiracer

· #4 · May 13, 2005

Re-balancing is not required if the parts have already been balanced (They have if they are used).

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91DSX

· #5 · May 13, 2005

cawcislo said:
What do you mean by whole unit? The whole centre section (basically the whole turbo less the turbine and exhaust housings)?

Correct, but having the entire fully assembled turbo allows the tech to forsee any other problems. However the shaft with both wheels whether new or not must be balanced as a single unit.

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cawcislo

Discussion Starter · #6 · May 13, 2005

One more question. If the turbo is fully assembled how would he adjust the balance if the turbo was not in balance?

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91DSX

· #7 · May 13, 2005

cawcislo said:
One more question. If the turbo is fully assembled how would he adjust the balance if the turbo was not in balance?

They will remove the housings or just give them to the tech (preferable)

Most balancers use just the center cartridge and wheels. They grind material off the wheels to balance them, however having the housings allows them to see if there is any flow diversion after having removed the material, especially on the compressor side.

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