Chris, Jack is right and my post is wrong (I said 1/4"). The tapered
thread is supposed to seal. Almost bet you have a leak ;-)
Larry
On Thursday, April 3, 2003, at 02:37 PM, Chris King wrote:
> 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@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
--
Larry Macy
78 Midget
Keep your top down and your chin up.
Larry B. Macy, Ph.D.
macy@bbl.med.upenn.edu
System Manager/Administrator
Neuropsychiatry Section
Department of Psychiatry
University of Pennsylvania
3400 Spruce St. - 10 Gates
Philadelphia, PA 19104
Ask a question and you're a fool for three minutes; do not ask a
question and you're a fool for the rest of your life.
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