GT3071r Pics from failure

shroom · 07-02-2010, 21:17

alright guys, as some of you know my turbo that I brought desided to give up the ghost after an hour of use,

I do think still nothing was sucket in and it does not look like anything has hit the propelors, it just seems like the inner bearings have gone and caused play, when taking it off I know it had water going into it and seemed like oil was too from what came out, although there shouldnt be much as has not been started for 4 days?

here are some pictures anyway of the one side, will have to take the exhaust side off too but was more difficult and after having a shoulder operation my gammy arm gave up

and the last thing that sold me something dodgy

shroom · 07-02-2010, 21:18

ow dear I have managed to bugger up the placing of the photos but cant seem to edit

sorry for largeness aswell

stumo · 07-02-2010, 22:06

are there blades missing, ie been broken off?

shroom · 07-02-2010, 22:11

nope there all there

shroom · 07-02-2010, 22:12

sory that first picture does look strane, no there all there just seems to have gone and eaten at the housing,

Makaveli_se7en · 07-02-2010, 23:13

whats the turbine side look like?

shroom · 08-02-2010, 07:37

couldnt take the housing off last night as my arm gave up so here is the other side with the housing still on, looks all ok just eaten into the housing

Makaveli_se7en · 08-02-2010, 11:32

Looks to me like the thrust loading capacity of the bearing system gave up the ghost, (not quite sure how this is handled in BB cores as they don't have a thrust bearing like ajournal bearing core). But I think you said in the other post that it happened as you were coming on boost? If this is the case you would have been on the left hand side of the comp' map where the thrust towards the compressor end is highest. Looks as if at this point the bearings didn't want to know any more causing the impeller to scrape the comp cover.

What caused the bearings to fail is beyond me though.

Makaveli_se7en · 08-02-2010, 11:34

The only other thing it might be is if the compressor cover had been refitted at some point and the front wheel clearence wasn't set properly

shroom · 08-02-2010, 11:47

ah interesting thanks for that, would you think if the compressor cover had come off would it not do it straight away?, as I think it was taken off and re possitioned to alow room for the manifold and pulled around slightly, but it seemed ok for a few hours on boost, the seal was ok so should have been on even but you never know, thats very interesting and something I did overlook not thinking about

yer thats right I just started to build up boost and then held back and i put my foot down again and I heard the whining from it then backed right off and stopped,

07-02-2010, 21:17	#1
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	GT3071r Pics from failure alright guys, as some of you know my turbo that I brought desided to give up the ghost after an hour of use, I do think still nothing was sucket in and it does not look like anything has hit the propelors, it just seems like the inner bearings have gone and caused play, when taking it off I know it had water going into it and seemed like oil was too from what came out, although there shouldnt be much as has not been started for 4 days? here are some pictures anyway of the one side, will have to take the exhaust side off too but was more difficult and after having a shoulder operation my gammy arm gave up and the last thing that sold me something dodgy Last edited by Fast Guy; 07-02-2010 at 21:25.

07-02-2010, 22:06	#3
stumo 5th Gear Join Date: Mar 2006 Posts: 3,225	are there blades missing, ie been broken off? __________________ Any shitty comments or jokes in the above post are not relating to anyone or anything past present or even in the future so don't get yer big gurly knickers in a twist or get your titty lip out ya big faggot.

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07-02-2010, 21:18	#2
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	ow dear I have managed to bugger up the placing of the photos but cant seem to edit sorry for largeness aswell

07-02-2010, 22:11	#4
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	nope there all there

07-02-2010, 22:12	#5
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	sory that first picture does look strane, no there all there just seems to have gone and eaten at the housing,

07-02-2010, 23:13	#6
Makaveli_se7en 1st Gear Join Date: Aug 2009 Location: Sunny West Yorkshire Posts: 182	whats the turbine side look like?

08-02-2010, 07:37	#7
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	couldnt take the housing off last night as my arm gave up so here is the other side with the housing still on, looks all ok just eaten into the housing

08-02-2010, 11:32	#8
Makaveli_se7en 1st Gear Join Date: Aug 2009 Location: Sunny West Yorkshire Posts: 182	Looks to me like the thrust loading capacity of the bearing system gave up the ghost, (not quite sure how this is handled in BB cores as they don't have a thrust bearing like ajournal bearing core). But I think you said in the other post that it happened as you were coming on boost? If this is the case you would have been on the left hand side of the comp' map where the thrust towards the compressor end is highest. Looks as if at this point the bearings didn't want to know any more causing the impeller to scrape the comp cover. What caused the bearings to fail is beyond me though.

08-02-2010, 11:34	#9
Makaveli_se7en 1st Gear Join Date: Aug 2009 Location: Sunny West Yorkshire Posts: 182	The only other thing it might be is if the compressor cover had been refitted at some point and the front wheel clearence wasn't set properly

08-02-2010, 11:47	#10
shroom 3rd Gear Join Date: Jul 2009 Location: shropshire, fam yard Posts: 848	ah interesting thanks for that, would you think if the compressor cover had come off would it not do it straight away?, as I think it was taken off and re possitioned to alow room for the manifold and pulled around slightly, but it seemed ok for a few hours on boost, the seal was ok so should have been on even but you never know, thats very interesting and something I did overlook not thinking about yer thats right I just started to build up boost and then held back and i put my foot down again and I heard the whining from it then backed right off and stopped,