rvandivort Posted June 8, 2008 Share Posted June 8, 2008 First, I want to say how sorry I am to mislead people on this forum. I got the the auto meter adapters Assuming the holset was metric--it isn`t. It`s all standard stuff. I saw this stuff about bsp and assumed it was universal. I spent 26$ from autometer for nothing. The t3 oil exhaust from ebay did work on the Holset. I got a t3/t4 kit from Speeedznights, and it had adapters fitting to the inlet side--I`m still short on one male to male npt(I Think!).The hose fitting on the inlet side had these ominously looking metal things on the inlet. I thought maybe this was a restriction mechanism. Anyway, after looking at the difference between that and the hole..I decided it was a manufacturing defect, shoved some #10 wire through it and blew it out with the air compressor. Otherwise, this is a good deal at 30 bucks with shipping. Any other comments on this?Thanks!Roger Quote Link to comment Share on other sites More sharing options...
GrayZee Posted June 13, 2008 Share Posted June 13, 2008 I have heard many different definitions of what the holset threads are, my experience is that the threads are M11x1.5 (very rare oddball size) I milled my stock banjo bolt down to 11mm then ran a die over it. Of course the die I had to custom order from a machine shop. Quote Link to comment Share on other sites More sharing options...
rvandivort Posted July 23, 2008 Author Share Posted July 23, 2008 Is there a way of making this easier?? The input side is good, but the entry into the turbo oil feed is an mm off. I have come to the conclusion that Holsets are not metric, but what expains the discrepancy? The bolts are 7/16 on the exhaust!! Quote Link to comment Share on other sites More sharing options...
jeffer949 Posted July 23, 2008 Share Posted July 23, 2008 Mine was metric 12x1.5 if i recall correctly. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted July 23, 2008 Share Posted July 23, 2008 I took my HE351 to my buddy's shop and we perused the stacks of new/used AN fittings. It came out to a size he had; pretty sure it was metric. I know you can sometimes get the wrong type (SAE/Metric/British/NPT) to thread in but the threads will "wobble" a bit. The piece I got certainly didn't. It was either Jegs or Earls brand IIRC. Quote Link to comment Share on other sites More sharing options...
WizardBlack Posted July 26, 2008 Share Posted July 26, 2008 I was just working on my car and looked at the fitting. Not sure what size it is but it's coarse like a pipe thread but quite a bit bigger than 1/8" NPT. Likewise, it's straight threads (not tapered like pipe thread) and uses a copper washer. Quote Link to comment Share on other sites More sharing options...
rvandivort Posted July 27, 2008 Author Share Posted July 27, 2008 Hi Guys, Using the above ebay thing, I got out of the output at the block, but was having problems connecting with the input of the hy35. Today I drilled out the input to the bearings with a 7/16 bit and threaded with a 1/2" 20. The 1/4 inch to 1/8 adapter works(nps). Then, I drilled the T3 flange with a 5/16 bit from the bottom and threaded with a 1/8" tap. Whacked off the flange,flushed oil using a steel brush and copious amounts of oil. The problem now is the shortness of the line. I found a leftover from a discarded grease gun input in My toolbox. That may do it. It is 1/8" npt. Quote Link to comment Share on other sites More sharing options...
rvandivort Posted July 27, 2008 Author Share Posted July 27, 2008 That t3 input thread is a little wierd!! Quote Link to comment Share on other sites More sharing options...
myplasticegg Posted July 29, 2008 Share Posted July 29, 2008 http://www.turbododge.com/forums/f4/f19/122372-holset-oil-feed-lines.html Quote Link to comment Share on other sites More sharing options...
rvandivort Posted July 29, 2008 Author Share Posted July 29, 2008 Thanks for that, but for 40 bucks you got it. I have to say, I was a tad bit off specifics.First,7/16 drill into oil inlet, then 1/2" x 20 tap. 1/4 "nc x 1/8"npt female adapter then 5/16 bit to T3 bottom and 3/8 x24 tap to complete with a 1/4 to1/4 nps male adapter. The drills are not totally right to the taps(as they say on the cardboard), but they work.We are trying to adapt a T3 oil line to a Holset off a LET. This block adapter (above) works.The only problem I`m facing now is a shortness in the oil line,which the above mentioned grease gun tube will fix,along with a 1/4x1/4 npt female adapter...or a totally rotating fem adapter. This seems complicated, but its really easy and cheap. Quote Link to comment Share on other sites More sharing options...
rvandivort Posted July 29, 2008 Author Share Posted July 29, 2008 Any 1/4" npt pipe will work for the extension. Quote Link to comment Share on other sites More sharing options...
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