ok so i'm running a t3/t04e 60trim from turbonetics, today i took of the dp so i could fix a leak. while i had the dp off i spun the turbine shaft to make sure it spun freely, then i whiggled it up and down and noticed that i have about 2mm's of shaft play. so is this normal for a turbo that only has about 2200 miles on it or do i need to warranty this thing?

EDIT: the better question would be what would cause it, when the turbo only has 2200 miles on there? i know it is getting plenty of oil so thats not the problem, and it's not surging at all.

 

i heared shaft play is bad......

 

yah think...............

 

General tolerances - Sleeve bearings - (access the shaft from compressor air-in end) -> typical maximum shaft end play (thrust) (back and forth, not sideways) is 0.008"inch or 0.20 mm (play should NOT be noticeable using your fingertips). Shaft side play no more than 0.022" inch or 0.56 mm (very noticeable sideways movement using your fingertips).

 

good info, i checked it from the turbine side not the compressor side, i'll pull of the inlet piping and check it from that side.

 

this is very good info, all journal bearing turbos NEED shaft play to seal properly. make sure you're cooling that turbo down before you shut your engine off. most people let their vehicle run from 30 sec to 2 minutes (depending upon how hard they beat on it and the length of time they beat on it.) you def dont want to cook the bearings in hot, hot oil. thus, turbo timing and letting fresh oil run through and cool down before engine shutdown.

dont take this as me saying you dont know anything about the subject, just a suggestion.

 

btw, I dug around a little to find that info, I never knew it off the top of my head

 

shaft play is good as long as it's a woman who's playing

 

is it true synthetic oil wont cook in the turbo like regular oil

 

no it's good info, i know quite a bit about turbo's just became a bit concerned with the shaft play on a new turbo.

idk, i have heard that with synthetic you don't have to cool the turbo down as long, but to be safe i let it cool down 2 minutes every time. on my tank we use a honeywell turbine and we use the same cooldown procedure, so if it works in areospace applications it works for me too.

 

2200 miles is'nt nothing it should run a long time i have 29,000 miles on my turbo running 15 psi,and definetly use synthetic oil like royal purple and i change mine every 1,000 miles that helps too. good luck

 

yah i only use royal purple in the have for the last 30k miles or so, i went to the turbonetics forum, there seems to be some issues with the seals on them, idk, i know i don't have a leaky seal though cause it's not burning oil out of the exhaust.

 

while proper maintenance is crucial to the longevity of your engine changing your oil every 1000 miles is overkill. Unless this is a track only car thats got to get expensive. Even every 3000 miles is overkill but thats what I go off of. I have heard that synthetic oil is easier on turbos than regular oil because it doesn't burn off as quickly if it does reach the turbo.

 

thats what i was thinking haha. then i realized this wasnt in the dungeon haha