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The mkiv Supra Owners Club

Dash 10 oil return line


Kev.O

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Can I use a dash 8 oil return line? I currently have the dash 10 from the BL kit, but I believe it could be leaking. I've had a new one made up with a heat protective coating but the largest coating they do would only fit over a dash 8 line.

Edited by Kev.O
Wrong dash number. (see edit history)
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Would have thought so. I wouldn't really want to go smaller than -10, but should be OK. You need to check what size the fittings are, normally the flange that bolts to the block and the one that goes on the bottom of the turbo are -10AN threads. You normally can only get -10 fittings for -10 hose, and you don't really want the expense and hassle of using adaptors so I'd try and fit the same size.

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Would have thought so. I wouldn't really want to go smaller than -10, but should be OK. You need to check what size the fittings are, normally the flange that bolts to the block and the one that goes on the bottom of the turbo are -10AN threads. You normally can only get -10 fittings for -10 hose, and you don't really want the expense and hassle of using adaptors so I'd try and fit the same size.

 

I already have the line made up sat in the garage ready to go on. The only reason I never used it when originally fitting the turbo was because I wasn't sure if it was big enough. So you think it should be ok, I only have a T61 :)

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Is it a BB or plain bearing turbo? BB ones flow a lot less oil as the feed is restricted, hence they drain less back to the sump. I am a great believer in making turbo oil drains form hard pipe using synthetic pipe just at the engine block end, can you not make a hard line for the drain pipe?

 

Is my baby running yet?

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Is it a BB or plain bearing turbo? BB ones flow a lot less oil as the feed is restricted, hence they drain less back to the sump. I am a great believer in making turbo oil drains form hard pipe using synthetic pipe just at the engine block end, can you not make a hard line for the drain pipe?

 

Is my baby running yet?

 

It's a plain bearing turbo Chris. It turns out that the smoke was coming from the exhaust wrap that I put around the return pipe. I originally had a slight leak from one of the joints not sealing and it covered the wrap in oil. I thought that after running the engine it would've burnt off but apparently not. I removed the wrap today and there is no longer any smoke. I will remove the turbo and fit some clean wrap over the next few days.

 

Yes she's running perfectly thanks. Ryan sorted the base map on thursday. Just need to slowly run the engine in. I was meant to contact you and thank you for doing an excellent job :thumbs:

 

http://s201.photobucket.com/albums/aa39/Casey-Kev/?action=view&current=11-05Weekendwork004.flv My filter has now arrived so don't worry it has one :)

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Pipe wrap will continue to smoke and smell until it's fully baked after a long hard run, so you may have to live with it until you give it a good thrashing. Looks and sounds stunning, you have done a truly superb job there Kev, and you should be justifiably proud of it. It's so nice to see engines I build go to good "homes", and that engine bay is Hilton quality ;)

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Pipe wrap will continue to smoke and smell until it's fully baked after a long hard run, so you may have to live with it until you give it a good thrashing. Looks and sounds stunning, you have done a truly superb job there Kev, and you should be justifiably proud of it. It's so nice to see engines I build go to good "homes", and that engine bay is Hilton quality ;)

 

:blush: Thank you for your kind words, they really mean a lot. It's taken me long enough but I didn't want to rush and ruin it.

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It's not taken THAT long, I started my own Skyline engine build before I even got your block here, and it's still sat on the engine stand with no head on it..... ;) The time taken is reflected in the end result, and IMO was time well spent.

 

And money well spent ;) Now get cracking on that Skyline engine :D

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