russaroll Posted June 10 Report Share Posted June 10 (edited) 174_5daeec67a8849  I've come across a couple of different answers.  It's not 3/8 NPT It's not 3/8 BSPT Is it M12x1.5? Nope Maybe M16x1.5? i know 5/8-18 is too sloppy. please help 😕 Edited June 10 by russaroll Quote Link to comment
MikeRL411 Posted June 10 Report Share Posted June 10 12 minutes ago, russaroll said: 174_5daeec67a8849  I've come across a couple of different answers.  It's not 3/8 NPT It's not 3/8 BSPT Is it M12x1.5? please help 😕  British Standard pipe thread. Adapters to ASA thread available in auto pas stoes in after market oil pressure section, 3 9r 4 us dollars. Quote Link to comment
MikeRL411 Posted June 10 Report Share Posted June 10 Seems my typing is skipping "r"s, Bpt is a Nissan tradition since the kit-built Austen days, It is essentially a version of straight pipe thread. Quote Link to comment
banzai510(hainz) Posted June 11 Report Share Posted June 11 zacrparts.com might have the orginal sender and 16mm nut that holds it in but I buy newer lower stat housing also as they usually crack taking them out afyer 40years Quote Link to comment
russaroll Posted June 11 Author Report Share Posted June 11 29 minutes ago, banzai510(hainz) said: zacrparts.com might have the orginal sender and 16mm nut that holds it in but I buy newer lower stat housing also as they usually crack taking them out afyer 40years  I'm not looking for a new sending unit. I bought aftermarket gauges and they came with a two wire probe 1/8 npt. I was trying to find the right thread pitch so I can buy the right adapter. I know I could just drill out the side and tap it, but there is already a perfectly good hole in it. Why make more. 🙂 Quote Link to comment
Stoffregen Motorsports Posted June 12 Report Share Posted June 12 No, I believe it is a 5/8-16 thread. Or maybe 5/8-18. Â I may be wrong, but I recall it being a "standard" thread that was pretty common among temp senders either British or Japanese. Quote Link to comment
russaroll Posted June 13 Author Report Share Posted June 13 9 hours ago, Stoffregen Motorsports said: No, I believe it is a 5/8-16 thread. Or maybe 5/8-18.  I may be wrong, but I recall it being a "standard" thread that was pretty common among temp senders either British or Japanese. 5/8-18 does thread in but it's sloppy. I'd have to use mass amounts of teflon tape for a good seal. Quote Link to comment
Stoffregen Motorsports Posted June 13 Report Share Posted June 13 33 minutes ago, russaroll said: 5/8-18 does thread in but it's sloppy. I'd have to use mass amounts of teflon tape for a good seal. Ok, I'll have to revisit this. Thanks for checking. Quote Link to comment
russaroll Posted June 23 Author Report Share Posted June 23 On 6/12/2024 at 6:39 PM, Stoffregen Motorsports said: Ok, I'll have to revisit this. Thanks for checking. You were correct. It was 5/8-18. M16-1.5 is a close second. 🙂 2 Quote Link to comment
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