Thread: Temp and oil sender locations for LS engines
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Old 09-24-2009, 02:07 AM
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Aussie Mike Aussie Mike is offline
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Location: Sunbury, VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
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NPT = National Pipe Thread
BSP = British Standard Pipe

The 1/8" actually refers to the bore of the pipe. The fitting itself is probably closer to 7/16" in diameter.

Taper threads are designed so that the deeper the fitting is screwed in the tighter it gets (Stiffy will have fun with that one) The idea is that the fitting forcing itself into the sides of the threaded hole makes for a better seal. Especially when combined with some thread sealer.

You will find the fitting is slightly tapered and the tap for threading the hole is tapered too. You have to be careful when running the tap in to make a thread that the fitting will seat to the right depth. It takes a bit of practice and a bit of trial fitting to get it right.

I've got both NPT and BSP taps and you are welcome to borrow them. Pop over one weekend and I'll show you how to use them too.

Cheers
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