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he trys hard
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Post by he trys hard » Wed Aug 08, 2018 7:21 pm

Hi I'm after some more advise , we are away on holiday at the lakes with the 1800 ti we had been running for about 15 miles so everything nice and warm. Whilst stopped some lights I looked in mirror to see smoke coming from exhaust pulled away and it slowly cleared and whilst running all was well so I then pulled over with engine running and after about 2/3 mins the smoke came back. Now I was thinking turbo? However this is newly refurbed turbo by turbotechnics . I have read on here before about raising rpm to 1200 (not sure what this does) and interestingly this were the rpm was when I bought it I've now lowered it to about 1000 . Is raising it to 1200 a permanent fix? Or is there a way to correct this fault or am I on the wrong line completely and have another problem



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Post by philhoward » Wed Aug 08, 2018 8:35 pm

1200rpm is the approved fix to stop the smoking - I think it’s down to the Reliant exhaust being considerably less restrictive than the equivalent Nissan one, and not producing enough back pressure to keep the oil inside rather than any actual fault.

That’s also why the 135bhp engine when in a Scimitar normally makes over 140bhp..

Most 1800Ti’s have a 1200rpm idle speed, you’ll find.


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Post by CNHSS1 » Wed Aug 08, 2018 8:38 pm

Lower ideal speed means less oil pressure at the turbo seals, they need pressure to engage properly. As Phil says 1200rpm is the official fix.


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he trys hard
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Post by he trys hard » Wed Aug 08, 2018 9:51 pm

Hi thanks for reply will bring it back up tomorrow fingers crossed,would it not be possible to change oil to a grade which could raise pressure ?



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Post by Mikelima48 » Wed Aug 08, 2018 10:04 pm

Interesting. I use Millers fully synthetic 5 - 30 oil in my 1800Ti. The idle speed varies somewhat between 850 - 1000 rpm depending on what electrickery is switched on and I've never experienced any smoke.

Many years ago I had a W registered Saab 9 3 turbo which had only light use before I acquired it and it used to smoke occasionally on start up. Frequent changes of oil and hard use cured it.

Mike



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Post by swoakes » Thu Aug 09, 2018 8:23 am

5-30 sounds too thin to me. We have used Mobil 1 10-40 semi synthetic in our sprint and road ti's


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Post by peter freeman » Thu Aug 09, 2018 8:39 am

It could be the valve stem seals if its not the turbo - have you got a restrictor fitted in the rocker cover breather pipe - another Nissan mod
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he trys hard
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Post by he trys hard » Thu Aug 09, 2018 8:54 am

Not seen it would it be in the rocker or the hose coming off , not heard of this what does do ? Should it be added or removed



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Post by peter freeman » Thu Aug 09, 2018 9:33 am

Added - got mine from GW years ago but probably one of the last available, should not be difficult to make - fitted in the arrowed pipe. Reduces the amount of vapour in the rocker box being sucked into the inlet. Pushes into the pipe - added mine to the rocker cover end.
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Post by he trys hard » Thu Aug 09, 2018 4:01 pm

Ok makes sense will get on to it.But the good news is raised the rpm to 1200 a have been on a 150mile round trip taking in wrynose pass and hardnott pass and she didn't miss a beat or smoke lol . The advise on here is worth the membership fee alone thanks all 😊



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Post by peter freeman » Thu Aug 09, 2018 6:09 pm

Did you miss rhino pass out



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Post by philhoward » Thu Aug 09, 2018 6:16 pm

No - wrynose is mentioned?


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