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  View original topic: Oil Pressure sensor tread size?
Snipley Mon Jul 23, 2012 6:13 pm

Anyone know the tread size for the oil pressure sensor?

Glenn Mon Jul 23, 2012 6:15 pm

M10x1.0

Snipley Mon Jul 23, 2012 6:21 pm

Thanks for the quick reply. Thats NPT correct?

Glenn Mon Jul 23, 2012 6:24 pm

No, but 1/8" NPT will fit. It's about 0.98 pitch.

(corrected)

Snipley Mon Jul 23, 2012 6:27 pm

Perfect thanks. I'm sure thats what the PO installed.

66brm Mon Jul 23, 2012 6:27 pm

What?????? 3/8 will not fit, the fitting is metric not imperial, its not NPT, its a metric tapered thread

mcmscott Mon Jul 23, 2012 6:30 pm

Glenn wrote: No, but 3/8" NPT will fit. It's about 0.98 pitch.

What??????? it is closer to 1/8 npt

Glenn Mon Jul 23, 2012 6:30 pm

the thread is M10x1.0 and is straight. You can put a 1/8" NPT which is tapered.

(corrected)

It does fit, just don't force it in. I've removed many NPT Tees and installed metric senders with no problems.

john@aircooled.net Mon Jul 23, 2012 6:32 pm

you mean 1/8 NPT (not 3/8)

Glenn Mon Jul 23, 2012 6:35 pm

john@aircooled.net wrote: you mean 1/8 NPT (not 3/8 )
correct... thanks John.


Quote: Use this Tee fitting if you are going to run both am oil temp and oil pressure sender off the stock sender outlet. The male thread is 1/8" pipe and both female threads are M10-1.0 ,

66brm Mon Jul 23, 2012 6:35 pm

Sorry Glenn but your wrong on this one, 3/8 is miles too big, the fittings typically used for full flow return to the case is 3/8 NPT, as Mr Scott says, the closest is 1/8"NPT which will fit but isn't the correct for the original threads and if over tensioned will pull the threads out

Damn slow typing again...

Glenn Mon Jul 23, 2012 6:37 pm

Correct... 1/8, not 3/8. Sorry.

66brm Mon Jul 23, 2012 6:49 pm

Its OK just wanted the OP to get the right fittings seeing as he lives in nowhere.

Glenn Mon Jul 23, 2012 6:57 pm

66brm wrote: Its OK just wanted the OP to get the right fittings seeing as he lives in nowhere.
Agreed... thanks to all for correcting me. it was a brain fart.

kreemoweet Mon Jul 23, 2012 10:12 pm

US pipe thread fitting will destroy the threads in the case. Also, there is no way the
OP switch/sensor can seal without there being tapered M10x1.0 threads. Most OP
switches I have seen have slightly tapered threads.

john@aircooled.net Mon Jul 23, 2012 10:20 pm

there is nothing wrong with 1/8NPT, I've been doing it for over 30 years and never a stripped case.

Glenn Tue Jul 24, 2012 3:52 am

john@aircooled.net wrote: there is nothing wrong with 1/8NPT, I've been doing it for over 30 years and never a stripped case.
Agreed, the thread pitch of 1/8 NPT is 0.98 which is close enough to 1.0.

NoBudgetVWGarage Tue Jul 24, 2012 9:30 am

Glenn wrote:


Quote: Use this Tee fitting if you are going to run both am oil temp and oil pressure sender off the stock sender outlet. The male thread is 1/8" pipe and both female threads are M10-1.0 ,

Where can this fitting be purchased?

W1K1 Tue Jul 24, 2012 9:37 am

http://www2.cip1.com/ProductDetails.asp?ProductCode=VDO%2D240%2D850

Dale M. Tue Jul 24, 2012 11:07 am

Also through Summit racing and E-Gauges....

E-gauge part number 240-850...

http://www.egauges.com/vdo_acce.asp?Subgroup=T_Adapters
http://www.summitracing.com/parts/VDO-240850/

Also may be referred to as a "street tee" in plumbing fitting language...

Dale



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