You're correct, a 1/8" NPT is a tapered thread, but the fittings do thread into
the block. Though I haven't run my engine yet, the fitting screwed in tight,
and I'm pretty confident it'll be leak-free. I'll let everyone know if it isn't!
-=Chris
Chris King - cbking@alum.rpi.edu
http://mywebpages.comcast.net/kvcbk/
---------- Original Message ----------------------------------
From "Brashear, Jack, N" <JNBrashear at garverengineers.com>
Date: Thu, 3 Apr 2003 13:11:35 -0600
>Hi Chris, I'm pretty sure the threads you mentioned are not the same. If I'm
>remembering correctly, the 3/8" fine is a straight thread and the 1/8" pipe is
>a tapered thread. While the thread pitch seems pretty similar, the pipe
>thread seals because of the taper and the straight thread seals with a flare
>or a soft washer depending on its use. Anyway, that's what I remember.
>Jack
>
>-----Original Message-----
>From: Chris King [mailto:cbking@alum.rpi.edu]
>Sent: Thursday, April 03, 2003 12:50 PM
>To: spridgets@autox.team.net; James Dowling
>Subject: Re: Oil pressure gauge help
>
>
>The oil pressure gauge can screw into the spot under the dizzy where the oil
>pressure sender now is. It's a 3/8 fine thread, which is also a 1/8" pipe
>thread.
>
>I'm going to use a separate oil pressure gage from a '79 MGB. If you want to
>keep the idiot light (as I am), you can get a T and some other bits from Pep
>boys, Home Depot, etc. and plug the pressure sender in one end and the gage
>tube in the other. Pep Boys sells a Sun-pro gage hook-up kit that has
>everything you need to plumb the gage. It's about $6 or so for the kit.
>
>Someone else may have to help with the temp gage info. I think you need a
>specer for the themostat housing to use the old mechanical temp gage.
>
>-=Chris
>'79 Midget
>
>Chris King - cbking@alum.rpi.edu
>http://mywebpages.comcast.net/kvcbk/
>
>
>
>---------- Original Message ----------------------------------
>From: "James Dowling" <jimdinalameda@hotmail.com>
>Reply-To: "James Dowling" <jimdinalameda@hotmail.com>
>Date: Thu, 03 Apr 2003 10:12:48 -0800
>
>>Can anyone tell me how I would install an oil pressure gauge on a 1500
>>engine. I am thinking of getting a combo oil pressure/water temp gauge to
>>replace the original water temp. Also, can I just change the water temp
>>sending unit form electrical to manual?
>>TIA,
>>Jim
>>79 Midget
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