TimC
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| posted on 28/11/06 at 03:55 PM |
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Thread Identification - Help!
Hi All
Have a problem,,, I can't identify the thread on a fitting I have. It's from my pre-drilled oil cooler bolt on my R1.
Its the one on the right hand side of the following pic:
Warning - quite large!
The thread on the left is M10x1, the middle is M10x1.25. The one of the right sort of looks like M10x1 but I'm not convinced. What do you
think?
It's not UNF/UNC/BSW/BSF. Help appreciated!
[Edited on 28/11/06 by TimC]
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Alan B
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| posted on 28/11/06 at 04:04 PM |
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Either 1/8 NPT or 1/8 BSPT.....you can see the taper on the pic..unless it's my eyes...
1/8 NPT is 27 TPI so it will look close to M10x1.0
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tasmin289
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| posted on 28/11/06 at 04:09 PM |
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1/8 BSP?
or 1/8 NPT?
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RazMan
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| posted on 28/11/06 at 04:14 PM |
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It is a fair bet that it is npt as a lot of sensors use this thread
Cheers,
Raz
When thinking outside the box doesn't work any more, it's time to build a new box
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Hellfire
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| posted on 28/11/06 at 04:17 PM |
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Agreed. I'd go with 1/8th NPT.
Phil
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TimC
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| posted on 28/11/06 at 04:18 PM |
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Just got the verniers out - doesn't taper.
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Alan B
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| posted on 28/11/06 at 04:22 PM |
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quote:
Originally posted by TimC
Just got the verniers out - doesn't taper.
You certain?....it sure looks tapered..
Another option would be 1/8 BSPP, but there does not appear to be a proper shoulder for a sealing washer......
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chockymonster
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| posted on 28/11/06 at 04:24 PM |
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My Oil pressure one didn't taper either but the hole it went into did.
The problem was it wouldn't seal properly on the oil cooler bolt as it was too short.
So I remote mounted it with bits bought from thinkauto.
PLEASE NOTE - Responses on Forum Threads may contain Sarcasm and may not be suitable for the hard of Thinking.
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TimC
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| posted on 28/11/06 at 04:27 PM |
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Double checked - no taper. It has a larger 'shoulder' and I think this combines with the change in colour to trick the eyes!
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indykid
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| posted on 28/11/06 at 06:13 PM |
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well measuring off my screen, with a steel rule, it does have a taper. about 63mm at the bottom of the thread, down to about 57 about 3 threads down
from the end. that's 35mm of thread length for scale.
the other 2 measure up as parallel though
could that be npt then?
tom
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MikeRJ
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| posted on 28/11/06 at 06:46 PM |
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I've not ever seen an oil pressure switch (or is it a pressure sensor?) that didn't have a tapered thread. Presumably it will have to be
sealed with a copper washer if it has parallel threads?
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TimC
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| posted on 28/11/06 at 06:55 PM |
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You're right - the very end tapers - I though it needed to be further up - what do I know?!
Cheers
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BenB
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| posted on 28/11/06 at 07:16 PM |
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Indykid- your ever noticed your avatar looks very like a Locost coming out of the Bunker in Return of the Jedi just before the Ewoks turn up?!? Just
need a couple of Stormtroopers and you'ld be there  Maybe I've had too much coffee today.....
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t.j.
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| posted on 28/11/06 at 07:35 PM |
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what is that coin??? 
Still no Euro.....
You lucky b*st*rds
We are now after 5 years climbing out of the euro-bad weather
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theconrodkid
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| posted on 28/11/06 at 07:41 PM |
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thats 2 pence,100 pence in £1,cant buy anything for less than £1 here
who cares who wins
pass the pork pies
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DIY Si
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| posted on 28/11/06 at 07:48 PM |
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Even penny sweets aren't anymore. Well, not the real ones from when I was a kid!
“Let your plans be dark and as impenetratable as night, and when you move, fall like a thunderbolt.”
Sun Tzu, The Art of War
My new blog: http://spritecave.blogspot.co.uk/
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spunky
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| posted on 28/11/06 at 08:41 PM |
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guessing it's the same as fitted on my SP1 engine, (looks the same) So 1/8 BSP.
Had same issue identifying the thread, pretty surprised to find the Japs using BSP.
John
The reckless man may not live as long......
But the cautious man does not live at all.....
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TimC
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| posted on 29/11/06 at 09:21 AM |
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It wasn't sarcasm. I meant it - what do I know?
No worries - help very much appreciated fella.
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foes
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| posted on 2/12/06 at 09:22 AM |
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quote:
Originally posted by spunky
guessing it's the same as fitted on my SP1 engine, (looks the same) So 1/8 BSP.
Had same issue identifying the thread, pretty surprised to find the Japs using BSP.
John
it'll be 1/8 bspt (tapered) not bsp (parrallel). Most jap car engines (so i presume bike engines also) use bspt for oil pressure senders etc,
and aftermarket jap gauges eg hks, apexi etc come with bspt fittings.
carl
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