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| Oil temp sender - tap to use for 1/8" NPTF? https://www.ausmini.com/forums/viewtopic.php?f=2&t=81036 |
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| Author: | MattE [ Tue Apr 09, 2013 2:13 pm ] |
| Post subject: | Oil temp sender - tap to use for 1/8" NPTF? |
Folks, This is the correct sender for the guage I have, and is shown as 1/8" NPTF. http://www.holden.co.uk/displayproduct. ... de=070.016 I understand that this is a tapered (pipe) thread. Will the thread I cut for it need to be a regular, non tapered thread? If so, what thread is required? I did a bit of googling on this, but quickly got bamboozed with jargon. Just a regular UNF thread I hope? Thank you Matt |
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| Author: | drmini in aust [ Tue Apr 09, 2013 4:06 pm ] |
| Post subject: | |
You need a 1/8 NPT tap, not a UNF one. It may be parallel or tapered form. The diameter of the thread is not a regular bolt size. I may have an old one here you can keep, will look.[edit] woops sorry, the one I have is BSP not NPT. Good quality 1/8 NPT ones are $20 or so. A good fastener shop should have one, or Blackwoods etc. |
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| Author: | MattE [ Tue Apr 09, 2013 4:35 pm ] |
| Post subject: | |
Thanks Doc. Happy to pay for yours if you have one. The charts suggest a Q size drill (0.332"). I have a 21/64" drill (0.328"). Close enough if I'm tapping gearbox alloy? Cheers Matt |
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| Author: | drmini in aust [ Tue Apr 09, 2013 4:49 pm ] |
| Post subject: | |
Yes it's near enough. |
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