Turbo rebuilding
#1
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Boys
my car is smokin White with bit of blue.
I'm expecting to rebuild my bottom end as compression was about 130.
Took turbo off and there's a bit of side to side play and in and out play too.
Would this be causin smoke ?
Don't know what it drives like as it's sorn under resto and I've never driven it on road.
I guess I should rebuild turbo regardless cos there's play in shaft.
so what's best ?
Rebuild ?
Buy second hand ?
Who's best place to rebuild it ?
Cheers lads
my car is smokin White with bit of blue.
I'm expecting to rebuild my bottom end as compression was about 130.
Took turbo off and there's a bit of side to side play and in and out play too.
Would this be causin smoke ?
Don't know what it drives like as it's sorn under resto and I've never driven it on road.
I guess I should rebuild turbo regardless cos there's play in shaft.
so what's best ?
Rebuild ?
Buy second hand ?
Who's best place to rebuild it ?
Cheers lads
#3
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Get it rebuilt by a pro... I had a go at rebuilding my t3, it reduced play in the shaft and boosted fine but after a week or 2 the exhaust side oil seal blew and caused it to poor oil down the exhaust and smoke quite badly...
Just a matter of interest, is 130psi a bad result for a comp test then?
Just a matter of interest, is 130psi a bad result for a comp test then?
#7
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rebuild it yourself and get it balanced at a local turbo place.
there are loads of really fiddly circlips though and you'll need fine pliers (circlip removal tool to get these out).
place near me charges £30 IIRC to balance a turbo, so worth doing it yourself if you have ample tools and bearings aren't too worn.
there are loads of really fiddly circlips though and you'll need fine pliers (circlip removal tool to get these out).
place near me charges £30 IIRC to balance a turbo, so worth doing it yourself if you have ample tools and bearings aren't too worn.
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#11
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Out of curiosity, if the main shaft is kept and you are only changing the bearing and seals, what is there to go out of balance? I guess you have to remove the turbine, and if it has been balanced as a whole rotating assembly it could go out of balance if the turbine isn't in the same place?
Rob,
Rob,
Last edited by Rob_DOHC; 26-01-2011 at 07:18 PM.
#14
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![](http://i959.photobucket.com/albums/ae79/jameschaffe/turbobalance.jpg)
here we see a turbo assembly being balanced OUTSIDE the cartridge, in order to get it in the cartridge AFTER balancing, it will need to be marked up , disassembled and re built the same way. I hope this helps everyone understand a little better. Chaffe
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Chaffe a good explanation there... Ive tried to explain this to a few ppl and it fell on deaf ears.
Ultimately if in doubt get it balanced and reassembled by a pro, but do the majority of rebuilding yourself.
I used RADesigns for my turbo, gave me a good discount as i sent a spare t3 for them to use as "scrap".
Ultimately if in doubt get it balanced and reassembled by a pro, but do the majority of rebuilding yourself.
I used RADesigns for my turbo, gave me a good discount as i sent a spare t3 for them to use as "scrap".
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Doing a compression test should be done after the car has been run for 20mins.You then test each cylinder for compression.Normally anything below 120psi points to wear and tear.140 to 160psi or more is about right.All depends on on the build of the engine.
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