Turbo Rattle

[EVL032]

hi

i recently got a hiflowed T3 on my rb20det. I baught the turbo second hand, now it goes hard and good it is alot better than standard turbo however now its making a rattling sound(thats what is worry me) but it still goes good! should i worry?????

thanku

[r33GTS-t-200kw]

english me speak good? Try and use some decent spelling and grammar and someone will take you more seriously...

[EVL032]

english me speak good?  Try and use some decent spelling and grammar and someone will take you more seriously...

Thanks for your help Hero!

nowi speak good english

just remember if u cant say nething nice dont say nething at all!!! :werd:

[Godzilla32]

I 2nd that. I could be either the turbo itself being unbalanced but prolly more likely to be the gasket. If its a rattle up top revs then thats prolly wat it is. Im having the same rattle on an SR20DET. Pull it off and check for black build up around the gasket/s

Hope i helped

Deren

[EVL032]

nah the rattle comes wen i start it and wen i turn it off at first

now more often like all da time till warms up.

but when it spools up no rattle it sounds all healthy

so dunno?????

if it were unbalanced wat would that mean for the life of turbo?????

thanks for ur help

I 2nd that. I could be either the turbo itself being unbalanced but prolly more likely to be the gasket. If its a rattle up top revs then thats prolly wat it is. Im having the same rattle on an SR20DET. Pull it off and check for black build up around the gasket/s

Hope i helped

Deren

[Godzilla32]

If its only doing it off boost then it wouldnt be out of balance. If its a ball bearing turbo then its possibly that causing the rattle I hear they can rattle a bit at shut off etc.. Its hard to say. Are you sure its the turbo making the noise?

[r33_racer]

try taking off the intake pipe and feeling the shaft...see if theres any play. good place to start.

[Godzilla32]

I prolly woulda suggested this too but he says its only at start up and shut off...And im assuming he checked for shaft play etc before installing the turbo, as he did it quite recently i think?

[EVL032]

thanks for the help by the way as ur the only one replying

no this is actually a bushces type turbo out of a vl turbo that has been hiflowed and new core and steel wheels i braught it second hand but checked it all out with the place the work got done and all is in order there just dunno why this happens now??

well i took the heat sheild off and it is clearly coming from the turbo 99.8%

thanks if you got ne more knowledge more than welcome

If its only doing it off boost then it wouldnt be out of balance. If its a ball bearing turbo then its possibly that causing the rattle I hear they can rattle a bit at shut off etc.. Its hard to say. Are you sure its the turbo making the noise?

[EVL032]

sorry i forgot to add there was no shaft play when i installed it a month ago and i havnt gone crazy with boost mayb 15psi and the turbo still pulls fine once it spools up

[Godzilla32]

Umm well id pull the turbo off and get it checked out it may need a rebuild. There could be a problem internally. Thats all i can suggest if you have narrowned the noise down to the turbo. Try using a stethescope to listen to each part of the engine when sumone shuts it off and stars it up or just while its making the noise...Whenever that is... You can use a piece of hose like garden hose. Works the same...

Deren

[PHATGTR]

Does it continue to make the noise for a period of time after start up or is it only when it cranks over?

[EVL032]

started off as wen turn on or off now its a constant thing

Does it continue to make the noise for a period of time after start up or is it only when it cranks over?

[sproosy]

english me speak good?  Try and use some decent spelling and grammar and someone will take you more seriously...

:werd:

[EVL032]

if u cant answer my question just shut up!

no where does its say on sau that u must spell 100% correct :werd:

:werd:

[Rolls]

no where does its say on sau that U must spell 100% correct

I think you'll find its spelt 'You' :upurs:

[Waldo]

check that the internal wastegate is fully shut tight, my gt28rs watsegate rattled until i tightened the rod up

[EVL032]

ye i checked this element and no the wastgate rod is tight!

i guess a question here is if in deed it is the blades that are rattling ( ie hitting the housing) Y would the noise go away once hitting boost and secondly Y would the turbo still be pulling good boost??

check that the internal wastegate is fully shut tight, my gt28rs watsegate rattled until i tightened the rod up

[Waldo]

the noise is probably still there you just cant hear it cos your on boost going fast and engine reving very loud, i had a t28 that was stuffed and the blades where rubbing on the front housing, it made a really high pitched squeel, then went away once you really gave it sum.

[EVL032]

nah the sound is sweet wen u hit boost a perfect sucking sound

but yeh would you still b making power if the blades were indeed hiiting the housing that is what i dunno??

cause the car is still pulling good!

the noise is probably still there you just cant hear it cos your on boost going fast and engine reving very loud, i had a t28 that was stuffed and the blades where rubbing on the front housing, it made a really high pitched squeel, then went away once you really gave it sum.