?

[Justinf74]

Nevermind

 

[SeattleSy#1255]

Re: Bad turbo?

Re: Bad turbo?

Okay I'm pretty sure that the turbo is bad on my syclone, it takes forever to boost, but it does still boost to the normal levels, there is shaft play and the turbo is not loud at all, there is so turbo whine, like I thought that there would be because the airbox was removed and just a k&n was put in its place, if anyone has any comments please let me know, thanks

not all those are indications of a bad turbo...lost of things can affect slow spool and judging by the noise it makes isn't always great either.

shaft play on the other hand is bad and you may be correct. Shaft play is just not good!

just saying you may have more than one problem, but perhaps not.

 

[SY2932]

Some shaft play from front to back is ok but anything excessive from side to side is bad. Front to back is necessary for the bearings to do their job. Side to side is bad because your wheels will contact the housing and do bad things at 130,000 to 140,000 RPM's (what the turbo "sees" at full boost)... Pop the orange elbow off the inlet on the turbo and inspect what the blades look like on the compressor side with an inspection mirror. The absence of "turbo whistle" don't mean much either as the stock turbo isn't all that loud even with trucks that have gone to an external wastegate and no cat. Speaking of which, your cat could be clogged hampering exhaust flow. Is the original cat still on the truck?