Jdeac Posted June 14, 2022 Posted June 14, 2022 Hi all I've noticed a little oil starting to come out of the bov. And looking at the turbo after my last round yhe centre housing looks to have had a little oil weep on it. Carge pipe was wet around the bov. this has been cleaned off Is it rebuild time?? Quote
Gixer1460 Posted June 14, 2022 Posted June 14, 2022 What engine (i'm guessing oil boiler?) and do you have a oil feed restriction? The oiler engines make waaaaaay more oil pressure than is healthy for most turbo bearings - BB ones especially! A restriction that holds pressure down to about 30psi should be all the bearings need and avoid a rebuild? Quote
Jdeac Posted June 14, 2022 Author Posted June 14, 2022 @Gixer1460it's an 1100k motor with an ihi turbo. Built my dave dunlop. Some time ago. It only started this weekend. Quote
Gixer1460 Posted June 15, 2022 Posted June 15, 2022 Ask Dave then! He builds good stuff but maybe 'forgot' to add a restriction? If you are seeing mist at the BOV - Imagine how much is inside the IC and other pipework! Or the turbo IS actually FUBAR ........... still what's another couple of £100's when you've already spent £000's LOL! Nice ET BTW! Quote
Jdeac Posted June 17, 2022 Author Posted June 17, 2022 Dave has said to clean it all out and keep an eye on it. So I guess that is step 1. And we shall see where it goes from there Quote
clivegto Posted June 19, 2022 Posted June 19, 2022 (edited) Collapsed ring lands or blow bast the rings maybe. Edited June 19, 2022 by clivegto Quote
rerb Posted July 11, 2022 Posted July 11, 2022 I also have oil through my whole intake after winter storage, I think the Eblag turbo seal crapped out. Replacing the turbo and will see if that cures it Quote
Jdeac Posted July 11, 2022 Author Posted July 11, 2022 (edited) Pulled the cooler off today after a meeting on sat. 1st pic is intercooler outlet. Ran bike with cooler off. Rev up a little no oil coming from compressor side of turbo. (I know it's not doing any work like this) Edited July 11, 2022 by Jdeac Quote
TiZiK Posted July 15, 2022 Posted July 15, 2022 Before fitting a scavenger pump, I had this issue. Turbo was a tad too low and oil was seeping past the seal filling the compressor housing. Once running it basically pumped it all the way to the plenum. Cleaned it all out, fitted the scavenge pump and alls been good since. 1 Quote
rerb Posted July 24, 2022 Posted July 24, 2022 I replaced the turbo and it fixed my issue. But I also think a restrictor is needed, at least for the Shanghai spinners off of Eblag. Too much seepage from pressure. Also.. why is all the oil seeping through turbos red and not amber? I've noticed it 3 times now. 1 Quote
Gixer1460 Posted July 24, 2022 Posted July 24, 2022 Because the seals aren't doing their job and oil is getting effectively, 'burnt' hence turning to caramel! 1 Quote
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