Oil pressure thread size and metric pitch

[David Martin]

Does anyone know the oil sending units mm size and mm thread pitch..........it appears to be 10mm size but I cant seem to find any metric thread pitch info. I thought I read it on a search I did a few month back but I just cant seem to find the data now.

 

[2kwik4u]

I don't have the info, but if you have the sensor, Home Depot has a great setup to test fit bolts to figure out what size/pitch they are.

Likewise a set of gauges to measure with are relatively inexpensive.

Something like this would answer the question for you:

ChgImposs Metric & Imperial & US Screw Gauge SAE Whitworth 55 Degree & Metrisch 60 Degree Thread Pitch Gauge for Industrial Measurement: Amazon.com: Industrial & Scientific

ChgImposs Metric & Imperial & US Screw Gauge SAE Whitworth 55 Degree & Metrisch 60 Degree Thread Pitch Gauge for Industrial Measurement: Amazon.com: Industrial & Scientific

www.amazon.com

 

[cybuch]

1/8 - 27 NPT

 

[David Martin]

Wow are you saying the threads in the Yamaha block are 1/8-27npt......... I'm surprised it would not be metric, but it would not be the first time I got surprised by a MFG.

 

[cybuch]

Yep, they are. I had to re-tap mine, dont ask…. This way they can use any oil pressure sender, instead of a custom one.

 

[David Martin]

Weird I now know more than I want to know about NPT. I have 1/8-27 npt nipple and it will screw into my TEE bushing 1/8-27 but not screw into the Yamaha block but the original Yamaha oil sender will screw into my 1/8 npt bushings that's into my Tee....holy@#$%^&batman...............so I took a trip to my local ACE and purchased a 1/8-27 npt die pipe cuter. Just for fun I checked their npt 1/8 nipples they were not listed as a npt or 27 pitch and they are cut with a TAPER., and they run through the di cutter perfectly. GO figure a nipple not listed as a NPT-27 only listed as a 1/8 nipple fits the block like it should.....shaking head now!!!!!!! You gota love the boys at ACE.

 

[cybuch]

The “T” in NPT stands for taper. Its designed to get tighter as you screw them together. I thought the same as you, what the?! But it fits