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Engine Specific Info and Questions => IDI Engine => Topic started by: dillenger1 on March 05, 2008, 10:32:25 am

Title: stock VW t3 oil feed fitting
Post by: dillenger1 on March 05, 2008, 10:32:25 am

Does anyone know what thread is tapped into the t3 for the oil feed?I know it converts to 12mmx1.5.I bought and oilfeed line spec. for the t3,but it has a  3an female fitting.Im having trouble finding correcet fittings.still...

Title: oil line
Post by: boxer246 on March 05, 2008, 06:15:08 pm

I had the same problem.  I went with a SS braided oil line, and tapped 1/8 NPT to 4AN fitting directly into the fitting already in the top of the turbo.  On the oil filter stand, I tapped the same thing.

Title: stock VW t3 oil feed fitting
Post by: Luckypabst on March 06, 2008, 07:36:52 pm

I'm new to the turbo nitty-gritty but I'll be doing the same on my K14, eventually.

I don't really understand the confusion - sounds like you need an adapter from M12x1.5 to AN-3. I'll be buying two of these from here:
http://www.pegasusautoracing.com/group.asp?GroupID=PLUMADAP12MM
as well as a M16x1.5 to AN-8 for the drain side.

I haven't actually installed one so consider yourself warned. The adapters they sell are "convex" or "concave" sealing. The fittings on my turbo seal with a copper washer. I plan to buy the "concave" type fitting since it'll be a bit shorter and use a copper or aluminum washer to seal the fitting to the turbo body.

Chris

Title: stock VW t3 oil feed fitting
Post by: dillenger1 on March 07, 2008, 02:58:30 am

Well i would need a 12mmx1.5  female end which seems to be elusive.Or if i knew what the turbo thread was i could go from  their.

Title: stock VW t3 oil feed fitting
Post by: Luckypabst on March 07, 2008, 01:05:55 pm

Can't you just pull the oil feed pipe adapter from the turbo casting and measure the threads? I'm not sure I fully understand, mainly because I'm not familiar with all the various turbos being used.

Chris

Title: stock VW t3 oil feed fitting
Post by: hillfolk'r on March 07, 2008, 08:17:45 pm

i did a idi to td swap years  ago
if i remember right,i retapped the filter  pad(oil feed)for standard stuff...


1/4npt i think,or 3/8,i remember there was plenty of meat for retapping the  existing metric threads
then i got a fitting that was  the correct npt male nipple on 1 side,and 5/16 compression on the other side...
then i took the stock line (8mm,and 8mm=5/16)and cut the orig comp fitting off and used the 5/16 comp fitting
bend the line slightly and voila,you got oil
it was hard to tell it looked like factory