Wez Posted April 25, 2011 Share Posted April 25, 2011 Hey All, I want to install my engine oil temp & pressure sensors along with a diff oil temp sensor, I already have the temp sensors which are Bosch with an overall length of 57mm, and a fitting thread of M12 x 1.5mm pitch. Oil Temp Sensor Are there sump plug and diff drain plug adapters available that will accept these? The oil pressure sensor I am looking at has a 1/8" BSP male thread, will the lexus union bolt (90401-19008) be OK with this sensor? Oil/Fuel Pressure Sensor Thanks Quote Link to comment Share on other sites More sharing options...
johnny g Posted April 25, 2011 Share Posted April 25, 2011 This site might be some use matey. http://www.racebolts.com/index.php?main_page=product_info&products_id=438 Quote Link to comment Share on other sites More sharing options...
Wez Posted April 25, 2011 Author Share Posted April 25, 2011 This site might be some use matey. http://www.racebolts.com/index.php?main_page=product_info&products_id=438 Top stuff thanks, dont suppose you know what the thread and pitch are on the sump plug and diff drain plug Quote Link to comment Share on other sites More sharing options...
johnny g Posted April 25, 2011 Share Posted April 25, 2011 I don't mate - funny enough, it's something that I'll be looking at in the future myself and I had this site on bookmark Quote Link to comment Share on other sites More sharing options...
Wez Posted April 25, 2011 Author Share Posted April 25, 2011 (edited) I've found the sump plug thread size, it's M12 x 1.25, Toyota part number for the plug is 90341-12012. Looks like my temp sensors are larger than normal, I am guessing I will have to drill and tap the sump elsewhere Just found out that the diff drain/fill plugs uses a 10mm hex head, guess I need to purchase one tomorrow. Edited April 25, 2011 by Wez (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 26, 2011 Share Posted April 26, 2011 I do an adaptor to put an M10 x 1.00 sensor in the stock sump plug hole. Not sure what the thread size is on the axle casing plug. The UK models have a temp *SWITCH* in the diff case cover, maybe you could use that cover and find a suitable sensor? I do oil filter elbow bolts drilled and tapped for a pressure take off fitting. Quote Link to comment Share on other sites More sharing options...
TLicense Posted April 26, 2011 Share Posted April 26, 2011 Hi Wez, Oddly enough I'm doing exactly the same thing! I've taken an old sump bolt that I've got and drilled and tapped it 1/8 BSP. Admittedly it doesn't leave a vast amount of meat on the M12 bolt, but there is enough. I've then bought this oil sensor http://www.efi-parts.co.uk/index.php?productID=125 that will fit right in. The only downside is that the sensor is going to be hanging fairly low. I'm a little concerned that it'll get clouted, but I'll wait till it's fitted and make a judgement call. Quote Link to comment Share on other sites More sharing options...
SimonB Posted April 26, 2011 Share Posted April 26, 2011 I'm a little concerned that it'll get clouted, but I'll wait till it's fitted and make a judgement call. Don't worry about it Tony, it will be fine. That's where mine has been for ages. I bought an adaptor rather than drilling my sump plug though, plenty around to go from M12 to 1/8 NPT. Good find on the sensor, mine is the one that came with the SPA oil temp gauge I used to have and have now taken out - looks very similar. Quote Link to comment Share on other sites More sharing options...
Wez Posted April 26, 2011 Author Share Posted April 26, 2011 I do an adaptor to put an M10 x 1.00 sensor in the stock sump plug hole. Not sure what the thread size is on the axle casing plug. The UK models have a temp *SWITCH* in the diff case cover, maybe you could use that cover and find a suitable sensor? I do oil filter elbow bolts drilled and tapped for a pressure take off fitting. Sadly I already have the temp sensors as I ordered them when I got my Datalogger Would the UK cover work with the smaller casing? How much for an elbow bolt shipped Chris and could you make the thread 1/8 BSP? Hi Wez, Oddly enough I'm doing exactly the same thing! I've taken an old sump bolt that I've got and drilled and tapped it 1/8 BSP. Admittedly it doesn't leave a vast amount of meat on the M12 bolt, but there is enough. I've then bought this oil sensor http://www.efi-parts.co.uk/index.php?productID=125 that will fit right in. The only downside is that the sensor is going to be hanging fairly low. I'm a little concerned that it'll get clouted, but I'll wait till it's fitted and make a judgement call. Hey Matey, long time no speak Sadly I already have the temp sensors and they are M12 x 1.5mm pitch Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted April 26, 2011 Share Posted April 26, 2011 Don't think the cover would fit, no, so you'd have to drill and tap yours, or weld a boss on. PM'd re bolts. Quote Link to comment Share on other sites More sharing options...
Lude Posted April 26, 2011 Share Posted April 26, 2011 i just purchased an sump plug adapter, its made of solid brass, and is quite cylinder like shaped, so when you tighten the sensor in, it doesnt risk crakking the bolt part which goes to the sump doesnt look like the pic, http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=370502004345&ssPageName=STRK:MEWNX:IT as for the oil pressure sensor, i just put mine where the stock one is (this does involve removing the Air con so not the easiest option lol) just get either a lexus bolt or a sarny plate Quote Link to comment Share on other sites More sharing options...
Wez Posted May 3, 2011 Author Share Posted May 3, 2011 Thanks Chris, received the bolt this morning Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted May 3, 2011 Share Posted May 3, 2011 No worries, don't forget I need the OE one back when you swap them. Thanks Quote Link to comment Share on other sites More sharing options...
Wez Posted May 3, 2011 Author Share Posted May 3, 2011 No worries, don't forget I need the OE one back when you swap them. Thanks Sure thing, I have one spare already I think, I will check it out this evening Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted September 7, 2011 Share Posted September 7, 2011 I do an adaptor to put an M10 x 1.00 sensor in the stock sump plug hole. How much for one of these Chris? Bloody shame I didn't spot this thread last week before you sent the TT ignitor Quote Link to comment Share on other sites More sharing options...
Wez Posted September 8, 2011 Author Share Posted September 8, 2011 This reminds me, I really should install it Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted September 8, 2011 Share Posted September 8, 2011 This reminds me, I really should install it Or you could always send it to me as a wedding present! Quote Link to comment Share on other sites More sharing options...
Jellybean Posted November 7, 2016 Share Posted November 7, 2016 Wez, I was looking at doing the same , did you get the Lexus Union bolt in the end? I want to remove the Relocation kit and install the Oil filter back on the Block as per OEM , I will loose my pressure 1/8NTP port Was thinking of getting a Lexus Union Bolt , not too sure of the male port on this ? 90401-19008 Union Bolt http://mkiv.com/techarticles/oil_sensor_mod/index.html Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 7, 2016 Share Posted November 7, 2016 Just drill and tap a standard bolt. The Lexus one is 1/8 NPT thread. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted November 7, 2016 Share Posted November 7, 2016 Just drill and tap a standard bolt. The Lexus one is 1/8 NPT thread. Thanks! Was looking everywhere for the answer I would tap the bolt on there but I dont have the tooling , 16 euro is not bad for the bolt Quote Link to comment Share on other sites More sharing options...
Jellybean Posted December 6, 2016 Share Posted December 6, 2016 (edited) Q: I want to install a faster acting Air temp sensor , and Fuel Temp sensor I have a few options Air 1) Delco 3/8NTP 2) Bosch M12X1.5 Fluid: 1) Bosch M10 X1 Question What is the OEM port spec on the intake for the Air sensor? M12X1.5 hopefully? I have two possible locations for the Air sensor, I have provision for a 3/8 NTP port in the Throttle body or the OEM location; what is best? Fuel temp sensor I was thinking of running in the return line , or somewhere off the regulator , Regulator is a Bosch Motorsports with AN6 fitting , M14X1.5 to 1/8 NTP port (Fuel pressure uses) , Return is a AN6 ; any suggestions how to fit an M10 X1 sensor ; probe on the sensor looks to protrude enough to prevent me using an adapter? I think I need , AN -6 (AN6) Male- Female Union 1/8" NPT Side Port and a M10X1 female TO 1/8" NPTF Male Edited December 6, 2016 by Jellybean (see edit history) Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted December 6, 2016 Share Posted December 6, 2016 Just measure the thread on the OE sensor, thread gauges are cheap as chips on Ebay, so are electronic calipers. I would measure air temp in the plenum as per OE, and fuel temp in the rail. Quote Link to comment Share on other sites More sharing options...
Jellybean Posted December 6, 2016 Share Posted December 6, 2016 Thanks Chris! Will get one off eBay Quote Link to comment Share on other sites More sharing options...
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