non spinning turbo

[Pappu1]

ok i have a vf30 that didnt seem to boost right

upon taking out ans checking found that u can turn the front compressor wheel independant of the rear wheel

yep.. u can spin the front wheel and if u put ur finger on the rear wheel it wont spin with the front wheel

same for doung rear to front

if u dont try and stop either end then they do seem to spin together

when spinning the rear wheel, there is a grind noise every so often..like a bit of metal against metsl..

the wheels on the turbo have zero shaft play in any direction.. seriously as if its brand new with no movement in play...

the blades are in very mint nick and none is touching the housing at all

what are ur thoughts..

[funkytown]

broken shaft.. 100% the grinding will be the broken shaft ends + the bearings

[Pappu1]

 funkytown said:

broken shaft.. 100% the grinding will be the broken shaft ends + the bearings

hmmm how the hell does one break a shaft lol

are they sort-able if i find another shaft lol

no harm in trying for the learning experience lol

[WRXONP]

you will need the turbo re balanced once its fitted

and yep will be broken shaft had a few do that... they normally leak out the seals when the shafts broken ...thats what they did to me LOL

[Guest]

could be a loose compressor nut !! either way needs strip and check at a minimum, and more than likely replacement of a few parts

spoke to you about this last week, and the grinding etc

Told you to send it or take it to a Turbo specialist, yet your still mucking around asking Q's

Is it that I said overhaul will cost you around $700 or more depending on what has happened to it

Pappu - time to spend $$, stop being a tight ass and wasting time - esp mine !

[johnny5]

nah think hes curious and wants to take it apart himself is all and yea looked at it on sunday definately a broken shaft but its just a spare turbo sittin on the floor

[rex-leggy]

if he takes it apart and the shafts broken (it is) then what , send a torn apart turbo to the shop..... i think you would get a better response taking it there complete imo.

[WRXONP]

ANGRY ITCHY > >

no point fucking with it as it needs to be balanced....

get murch to fit a back cut exhaust wheel and ceramic bearings and new shaft

[Guest]

of course i'm angry - he calls me while i'm in the middle of a huge concrete pour on site

I make time for him, and now find out he was just wasting my time

As you messaged me a few weeks ago WRXONP- he's very confused, and indian

Note the Turbine wheel IS the shaft !! so no point back cutting and then fitting a new shaft

[vorigan]

playing with turbos without all the right gear and knowing all the clearances and limits = hole in pocket or worse

ps: no one sells spare parts for them nor will i supply parts

[Pappu1]

sorry ichi ..not meant to question ur skills bro..

just that the turbo is lying on the floor and every day i see it i get more curious..

like a cat in front of a ball of string..

lol

just asking around to see if i can do a DIY on it... more for the learning and curiosity side of things than anything else really..

not sure if wana spent a lot on a rebuild and that ball of string keeps getting more and more tempting..

all them ppl on youube seem to rebuild t3/t4 and other non vf turbos lol..

ah well..im sure everyone at some point wud have been confused/curious abt some car stuff and contemplated a diy..

u never learn/discover new things if u dont ask/try..

weather they then did it diy or gotten a pro wud be based on the answers to the questions they wud have asked..

thats how i have done things anyway

[vorigan]

Anyone one with half a clue wouldnt be showing how to rebuild a turbo like im sure Rick wouldnt be showing how he builds top engines, not good for business nor your reputation as like teaching how to tune not a smart idea little know how leads to great heartache and shitty customers.

A 10min youtube video cant pass on many years of knowledge youtube is all about getting 15mins of fame without doing the hard yards.

[Pappu1]

 vorigan said:

Anyone one with half a clue wouldnt be showing how to rebuild a turbo like im sure Rick wouldnt be showing how he builds top engines, not good for business nor your reputation as like teaching how to tune not a smart idea little know how leads to great heartache and s***ty customers.

A 10min youtube video cant pass on many years of knowledge youtube is all about getting 15mins of fame without doing the hard yards.

fully agree steve.. i was just asking here cos didnt find much on vf rebuilds on utube and to be honest damm curiosity is getting the better of me every time i walk past the turbo on the floor..

hahah keep thinking how does it look inside..how come zero play and yet not running etc etc... :-[

PS.

ur rebuilt td05/06 on my old rex still rates as the best thrill i have had in all the different rexes ive driven.

way better than a "supposed" better rated t3/t4 my brother in law had on his rex at the same time hahaha

[WRXONP]

Chinese t3t4 exhaust housing and Wheel are way huge for a 2 litre suby . . massive lag . .

have seen a guy "Rebuild" A Chinese turbo diy styles . . he thought lining the nuts and wheels back up with marks would keep it roughly balanced . . . roughly isn't good enough it lunched it self in a matter of moments . . .

sort of like saying i will skim my brake rotors with a grinder . . . rough isn't good enough when your talking balancing

[Guest]

just get it rebuilt bro.

:

[WRXONP]

i would just personally sell it to some one who wants to fork out $$$$$$ To rebuild it cos you can pick them Up cheap as chips . . better yet get a td05

[Guest]

for a V7??

[Pappu1]

yea i think that maybe the go.. sell it and put towards a bigger turbo

that i likes more!!!!

never opened a turbo before hence was all curious...

and bf5gt90 - the t3t4 was on a v4, tuned with a powerfc and fmic and external running yellws and sti afm and gizzmo ebc

was laggy but did pull a 12.7 1/4 mile so not too shabby..

just dam laggy lol

[DRFVDR]

If you dont need/want the turbo again no harm in dismantling to see how it all goes together, if u intend to rebuild/get it rebuilt leave it alone

they are pretty cool looking, I use a exhaust impeller and shaft for mixing paint

[Pappu1]

update:

thanks to ichiban found the issue

the nut on top of the compressor wheel was loose!!

well thanks to teznu as well who had eagle eyes to spot the loose nut (i had not even looked at turbo that hard)

anyway he just rolled the nut off the thread - that was sooo dam loose

will get the turbo to turbo specialist and get it checked and refurb and rebalanced

teznu thinks it was just the loose and no other serious damage but hopefully turbo specialist can check and sort what needs sorting...

lucky i didnt try open it up or wud have possibly ruined a good turbo hehe :-[

[vorigan]

its a left hand thread and they dont come undone for no reason that would concern me the most unless someone has been playing

[Pappu1]

 vorigan said:

its a left hand thread and they dont come undone for no reason that would concern me the most unless someone has been playing

hmmm it was sitting at the mechanics for a while then my brothers room and now in my garage..

hopefuly turbo guy can see and update whats the issue/outcome..

now that u mention it, yea why wud it come off on its own ??

its not a commont thing/fault somehow?

[vorigan]

its no fault nor common unless the shafts grown and thats from abuse or over tighting

[Guest]

i meant for the V7 with a td05?

pappu ur v7 is twinscroll setup yeah?

[Pappu1]

 BF5GT90 said:

i meant for the V7 with a td05?

pappu ur v7 is twinscroll setup yeah?

na bro single scroll..

wudnt get twin scroll as love the rumble too much..

heheh remember we even took off my equal length headers and put the stock ones cos i wanted rumble and not honda lol..

it was the blue one before (the night incedent up the road car lol)

thanks for the update steve.. since its not common - i will hopefully get an answer from the turbo guy once they see more of it..

hmm will running with super tight bov for a while do that - as in lots of comp surge on normal driving and only venting in high psi and nothing even in medium psi.. pretty much no bov type sceneario in low/med boost.......