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The mkiv Supra Owners Club

Oil feed restrictor


jevansio
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When I was putting my turbo back together I stripped the thread on the oil feed fitting, I got another (but it wasn't as restrictive), I've since found out DBB's need that restrictor otherwise they blow seals.

 

My question is, I don't know the spec on the old fitting, but does a 0.035" fitting sound reasonable?

 

Also the fittings seem to be either -4AN or 1/8 NPT, anyone know which I need to order?

 

Also does anyone know how much damage I may have already caused, car hasn't done many miles with this fittting in, but has a handfull (30 ot 40) of WOT pulls to the redline?

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I may have one lying around at home. I had some spare from when i had my old T67 Dbb, will have a look later on.

Many thanks Steve, appreciate it,

 

if its the fitting the braided line attaches to it will be -4an and the flange will probs be 1/8 npt. Ive got an 1/8 npt gauge in the garage if you want to borrow it to make sure.

Cheers John, I will do next time I'm up if I'm not sorted by then :)

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