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Jono
05-04-2009, 12:55
I have just bebuilt the engine in my 5 and put it back on the road in the last week. It runs well and makes good oil pressure as previously discussed on here. However I installed a brand new turbo on Thursday. 80 miles later its totally f*cked. Loads of play in the shaft and smoking like a gud un. I have no reason to suspect the turbo was a duffer

I have no idea why this has happened and apart from the fact I feel like setting fire to the damn car, I have no idea what to do next, aside from the cost of getting my "new" turbo refurbed, i obviously dont want a repeat performance. So im after some advice please. I was supposed to be sprinting at Three Sisters next weekend which has now gone out the window and im really fed up with the bloody thing.
RICHIE
05-04-2009, 13:07
were are you taking the oil reading its best in the turbo oil feed line with a aftermarket guage. also are you using a inline filter to catch the swarf adam l is a good man to speak to regarding a turbo rebuild
Scoff
05-04-2009, 13:24
Poor pressure to the turbo maybe, or another case like this one:

http://www.rtoc.org/boards/showthread.php?t=5732
Jono
05-04-2009, 13:31
Im taking the reading from after the one way valve with a mechanical guage.
Scoff
05-04-2009, 13:37
If your in an investigative mood you could strip the turbo and have a look at the bearings. scored journal bearings are easy to spot and are a sure sign of contamination. I killed 4 good turbo's within a year before I realised that having the engine in bits every other week wasn't doing them any favours. Those Baley turbo pre-filters are a god send! Amazing what crap they catch, even from a clean engine.
RICHIE
05-04-2009, 13:38
Im taking the reading from after the one way valve with a mechanical guage.

and what is it reading
Jono
05-04-2009, 13:42
14 psi at idle and about 38 at 3k revs.

Thats with the oil at about 80degrees.
Jono
05-04-2009, 13:44
Hi scoff.

Thanks for your advice. I guesswhat im really trying to avoid is having it rebuilt only fot it to last another 80 miles.

So what do you think the best way forward is?
RICHIE
05-04-2009, 13:51
Hi scoff.

Thanks for your advice. I guesswhat im really trying to avoid is having it rebuilt only fot it to last another 80 miles.

So what do you think the best way forward is?


a few oil changes couple of magnets on the sump.
Scoff
05-04-2009, 14:15
Hi scoff.

Thanks for your advice. I guesswhat im really trying to avoid is having it rebuilt only fot it to last another 80 miles.

So what do you think the best way forward is?

As richie says as a minimum. Look at those baley filters like I said above, they work wonders. I've used one for the past 4 years ish, and honestly have never had a smokey turbo in all that time. Before that I would do 4 turbo's in a year, always contamination because my engine was apart all the time.
Jono
05-04-2009, 16:22
Cheers fellas

Will get in touch with adam and see if he can sort it out. Hopefully not too much damage will have been done. :(
Sparkie
05-04-2009, 18:18
as scoff has previously mentioned...it will be swarf.

did you get any parts powder coated? - like the rocker cover - or shot blasted?

you'll find loads of sand hidden in the splash guard area of the rocker cover!
Jono
05-04-2009, 20:30
I didnt have anything powder coated.
I tried to keep everything spotless when I put it togther! I guess not spotless enough!

Is it likley to have done any damage to the mains and big ends?

I did a quick search for those bailey in line filters, but I could only find listings for T3 size and upwards. Im guessing the oil feed is bigger on these and hence it wont fit a T25 which is what I am ( was doh!) running.
RICHIE
05-04-2009, 21:54
I didnt have anything powder coated.
I tried to keep everything spotless when I put it togther! I guess not spotless enough!

Is it likley to have done any damage to the mains and big ends?

I did a quick search for those bailey in line filters, but I could only find listings for T3 size and upwards. Im guessing the oil feed is bigger on these and hence it wont fit a T25 which is what I am ( was doh!) running.

speak to ben at hose solutions mate im sure the bearings will be fine unless its something big floating around in there mate
J$£5GTT
05-04-2009, 21:59
isnt it worth running an engine in without the turbo,
plate it off,has anyone ever done that?
car.crash
05-04-2009, 22:01
i killed a brand new turbo in no time, turned out to be swarf in my oil, had the turbo rebuilt and done 3 engine flushes with oil. fitted a inline turbo oil filter and im still pulling out swarf. those inline filters work a treat as the turbo would have been trashed in no time without it.
THE MASTER
05-04-2009, 22:55
you cant beet one of these when doing an engine build
http://i42.photobucket.com/albums/e331/terrytj/Parts%20washer/PartsWasher04.jpg
:D
and of course one of these
http://i130.photobucket.com/albums/p270/schwartz67/radB84A1enginestand.jpg
;)
Alex
06-04-2009, 07:52
Ben @ Hose solutions makes a braided oil feed pipe with an inline filter - give him a call. :)
sonic-jdm
06-04-2009, 10:26
Ive had this problem too, and would like to keep a eye on the oil pressure to the turbo, is the link below the best place to have you oil reading from ??
http://www.cgbmotorsport.net/oil-pressure-adaptor-for-sw-oil-pressure-gauge-819-p.asp

Cheers
sonic-jdm
06-04-2009, 16:59
Bump:)
car.crash
06-04-2009, 17:11
you cant beet one of these when doing an engine build
http://i42.photobucket.com/albums/e331/terrytj/Parts%20washer/PartsWasher04.jpg
:D
and of course one of these
http://i130.photobucket.com/albums/p270/schwartz67/radB84A1enginestand.jpg
;)



just orderd one last week, so should be here any day now so i can finally rid my engine of swarf. still debating over what fluid to put in it though as its all expensive.
Jono
06-04-2009, 22:41
I have a T piece plumbed in below the on-way-valve. That way you can still keep the existing renault sender and hence the crap electric guage and oil light still work.
Guess its down to preference really.




Ive had this problem too, and would like to keep a eye on the oil pressure to the turbo, is the link below the best place to have you oil reading from ??
http://www.cgbmotorsport.net/oil-pressure-adaptor-for-sw-oil-pressure-gauge-819-p.asp

Cheers
J$£5GTT
06-04-2009, 22:51
talking about swarf an preferance how many of you use the genuine
renault oil filters with the 'non return valve'?
personally i have used these but 9 times out of ten i use fram or whatever
:)
Sparkie
06-04-2009, 23:43
they have a by pass valve that opens at some very low psi....

i just turned my OE one way valve on the turbo oil feed into a filter earlier on today. i took out the internal hex centred cap and put an aircon compressor filter guard in there. seems to look ok, better than nowt! :laugh: