mazfg Posted January 19, 2012 Share Posted January 19, 2012 Just wondered what the threads are for the switch and the thread in the engine block, as mine goes to a t-piece that also feeds my oil pressure gauge, but the t-piece has an adaptor on it before it attaches to the engine block?Unfortunately, my t-piece stick out to much and ideally I'd like to fit it to an elbow so it vertical and not horizontal, anyone know where to get a 90degree elbow from? Link to comment Share on other sites More sharing options...
timraven Posted January 19, 2012 Share Posted January 19, 2012 1/8" NPT rings a bell, not 100% thoughThat's what I remember for the 4 pots,Dunno if the 6 pots are different Link to comment Share on other sites More sharing options...
Nick Jones Posted January 19, 2012 Share Posted January 19, 2012 I think you'll find it's 1/8" BSP(T).Nick Link to comment Share on other sites More sharing options...
nang Posted January 19, 2012 Share Posted January 19, 2012 1/8'' NPT but BSP will fit, only one TPI different, 27 against 28.Tony. Link to comment Share on other sites More sharing options...
mazfg Posted January 19, 2012 Author Share Posted January 19, 2012 Cheers for that, seen this on ebay....http://cgi.ebay.co.uk/Oil-Pressure-Sensor-Adaptor-Ford-Escort-Cosworth-YB-/150597720642?pt=UK_CarsParts_Vehicles_CarParts_SM& hash=item231052da42 shame it's 1/4 NPT..... would do the job otherwise... Link to comment Share on other sites More sharing options...
mazfg Posted January 19, 2012 Author Share Posted January 19, 2012 So, the engine block is 1/8NPT? Link to comment Share on other sites More sharing options...
mazfg Posted January 19, 2012 Author Share Posted January 19, 2012 Hpw about this: http://www.ebay.co.uk/itm/Radial-T-Piece-Oil-Pressure-Gauge-Adapter-1-8-NPT-BMC-Range-056-3-/270850612991?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item3f0ff45eff Link to comment Share on other sites More sharing options...
molsmagic Posted January 19, 2012 Share Posted January 19, 2012 hi there,Have alook at these people:http://www.holden.co.uk/they will have all the bits you need and the service is pretty goodNige Link to comment Share on other sites More sharing options...
iannay Posted January 21, 2012 Share Posted January 21, 2012 Anybody got any tips on how to get the original sender unit out of the block? mine's faulty and pretty siezed in Link to comment Share on other sites More sharing options...
mikeyb Posted January 21, 2012 Share Posted January 21, 2012 mole grips Link to comment Share on other sites More sharing options...
mazfg Posted January 21, 2012 Author Share Posted January 21, 2012 http://www.ebay.co.uk/itm/170747604159?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649I bought this one in the end....came today and tried it. By hand it only screws in a little to the engine block(adaptor) , I was told this ebay tpiece is 1/8" NPT...although it was mentioned it should fit?I was hoping to turn this piece into an elbow. Was going to plug up the end with a grub screw and then attach my old T-piece to the top of this and use it that way.The T-piece fits fine into the top of this though.....on examination original T-piece I have tapers in more than this new T-piece..... Link to comment Share on other sites More sharing options...
mazfg Posted January 21, 2012 Author Share Posted January 21, 2012 So, can someone clarify the pressure switch and engine block thread as BSP(T) or NPT? Link to comment Share on other sites More sharing options...
bxbodger Posted January 21, 2012 Share Posted January 21, 2012 It's 1/8 NPT, that's what's stamped on my pretty ancient gauge adaptor which fits fine. Link to comment Share on other sites More sharing options...
mazfg Posted January 21, 2012 Author Share Posted January 21, 2012 Hum, Id hoped it'd be BSP, as NPT is American...damn.... Link to comment Share on other sites More sharing options...
junkuser Posted January 21, 2012 Share Posted January 21, 2012 ."on examination original T-piece I have tapers in more than this new T-piece.."Unfortunately that is a very annoying fact of life with tapered threads.Even more annoying when the taper on the male has been run too far in some circumstances.Is there someone that can loan a die to Mazfg? Link to comment Share on other sites More sharing options...
mazfg Posted January 23, 2012 Author Share Posted January 23, 2012 Bought an 1/8" NPT t-piece to try now...hopefully it'll work :) Link to comment Share on other sites More sharing options...
mazfg Posted February 6, 2012 Author Share Posted February 6, 2012 This seemed to do the jobs. Existing oil pressure switch fits and also the little adaptor for the oil pressure gauge too...I did use some PTFE too, but all good, fits better than the 1/8" BSP I had before....1/8" NPT it is...... Link to comment Share on other sites More sharing options...
mazfg Posted February 6, 2012 Author Share Posted February 6, 2012 Still would like to know what the thread size is on the engine block...as this is the first adaptor before the T-piece that takes it to 1/8" NPT female thread......? Link to comment Share on other sites More sharing options...
nang Posted February 7, 2012 Share Posted February 7, 2012 1/8" NPT ! Link to comment Share on other sites More sharing options...
mazfg Posted February 7, 2012 Author Share Posted February 7, 2012 nang wrote:1/8" NPT !That's after the adaptor.. the engine block is something else, bigger and courser thread. Link to comment Share on other sites More sharing options...
That Man Posted February 7, 2012 Share Posted February 7, 2012 I must admit i thought all triumph 4/6 cylinder engines were the same, but after a bit of research it appears the mk1 1600 engine uses a threaded adapter in the block to then take the 1/8" NPT (PN 129889) this uses a copper washer to seal so it may be just a UNF thread ?Gordon Link to comment Share on other sites More sharing options...
mazfg Posted February 7, 2012 Author Share Posted February 7, 2012 Yep, got a copper washer on mine...the thread is quite course..maybe UNC? Link to comment Share on other sites More sharing options...
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