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TECHNICAL ISSUES => Renault 5 GT Turbo => Topic started by: mgree10 on 09:16, Fri 22 May 2009

Title: t25 fitment update/help needed....
Post by: mgree10 on 09:16, Fri 22 May 2009

Hi All,more help needed please....got the T25 modified and fitted,changed nothing else,standard airbox and carb setup,still rnning standard boost...when the car is warmed up starts to blow white smoke on deceleration/accelleration,fitting a alloy intercooler feed the airbox with pipe from frong grill?what have i done wrong,what else do i need to change?...thanks in anticipaion...m

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Post by: bazr5gtt on 10:01, Fri 22 May 2009

hey mate i take it it has just done this since you fitted the turbo is it a second hand one?white smoke =water blue smoke is oil so im asumming the head gasket aint blown probably seals gone in your turbo,i would remove turbo elbow and check that side for signs of oil and water coming out of the turbo,hope this helps

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Post by: Ash-Lee on 12:08, Fri 22 May 2009

When the oil seals in a turbo have failed it does look more white then blue, especially when your viewing it in the rear view mirror.

Pull the turbo elbow off, if it's oil and it's quite bad it will be full of black sticky mess.

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Post by: bazr5gtt on 13:00, Fri 22 May 2009

yeh ash is right there will be an oily resedue at the elbow

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Post by: mgree10 on 13:00, Fri 22 May 2009

gents,turbo off,seems ok no mess?increase in backpressure and heat been told possibly oil stem seals?cars stood for a while and dosent get loads of miles now,bought some conditioner and going to give it a go...your thoughts...m

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Post by: Ash-Lee on 14:16, Sat 23 May 2009

I run without valve stem oil seals, for some reason they wont stay where i put them on my head.

It shouldn't smoke to bad if it's those, mine only puffs out the odd bit of oil on a hot start.

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Post by: Tommo on 18:15, Tue 09 June 2009

Worn Valve guides will let more through.

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Post by: r5matt on 18:25, Tue 09 June 2009

did you bleed the oil from the turbo oil fee pipe before you started the car up?? ??

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Post by: mgree10 on 09:34, Wed 10 June 2009

all,update...defo the seals in the turbo,got me hands on another,coz the car has had the work done to fit the origional t25 should be sorted in no time.....cheers again,mark

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Post by: r5matt on 12:25, Wed 10 June 2009

head work to fit the t25 , I dont understand ? My t25 stage 3 just bolted on like the standerd T2

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Post by: mgree10 on 12:37, Wed 10 June 2009

im a complete novice mate...enjoying the challenge though...the t25 came off a rover 220,so to me modifying even an oil drain was something new,oil feed wasnt long enough had to get new one made,even turning housings around and fitting/setting up actuator were all new...loving it,disapointed when i got the smoke though....mark

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Post by: r5matt on 13:48, Wed 10 June 2009

oh you went for the Rover T25 , sorry I thought you ment something else