Billy Bones wrote:Well I found a kit on ebay and rebuilt it yesterday I'm hoping I didn't throw it off ballance.
Did you mark the turbine wheel to it's housing, then the compressor wheel to the back plate?
By doing it that way, you set the marks on the turbine side where they were, then simply line up the compressor wheel to the mark on the backing plate.
Easy as pie.
If you doubt it's in balance, make sure you grease or lube the center with oil, then set the turbo on a hard surface, preferably a heavy steel bench (DO NOT SECURE IT DOWN!), then blow compressed air into the exhaust housing.
If it chatters noticeably on the bench, it's out of balance, loosen the nut on the compressor wheel and move it around and re-tighten, then test again.
Generally, I've found that if it doesn't vibrate noticeably unsecured on a hard surface, the balance is "close enough".
Trust me, if it's out of balance, the turbo rattling, or humming, on the steel bench will tell you!
Mark.