| Ragusa Tranny Pan [message #276218] |
Sun, 19 April 2015 12:51  |
LNelson
Messages: 335
Registered: December 2008
Location: Springfield, MO
Karma: 0
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I bought a Ragusa tranny pan at the Branson Convention and am now actually thinking of installing it. I want to get a temp gauge installed and took the plug out and went to my "fastener" store to get an idea of the size and thread count of that plug. It seems to be a size used only in North Korea or Mars.
So, what is the consensus on the size of that threaded opening?
Thanks in advance.
Larry
Larry Nelson Springfield, MO
Ex GMC'er, then GM Busnut
now '77 Eleganza ARS WB0JOT
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| Re: Ragusa Tranny Pan [message #276260 is a reply to message #276220] |
Mon, 20 April 2015 07:32  |
LNelson
Messages: 335
Registered: December 2008
Location: Springfield, MO
Karma: 0
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Thanks to all. I will say that the plug calipers at 1/2" OD. My NPT chart shows that diameter being 1/4" NPT but the thread count is more like 20 threads per inch, not 18.
Emery, yes, I will call Ragusa but I was trying to get something done yesterday, which was Sunday.
Again, thanks to all replies and PMs. Not rocket surgery, I know.
Larry
Larry Nelson Springfield, MO
Ex GMC'er, then GM Busnut
now '77 Eleganza ARS WB0JOT
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| Re: [GMCnet] Ragusa Tranny Pan [message #276276 is a reply to message #276260] |
Mon, 20 April 2015 09:07 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Larry,
The port is 1/4 pipe with 18 threads per inch.
There is no such thing as a 1/4 pipe with 20 threads per inch.
Visit your local hardware store and buy a 1/4" pipe to 1/8" pipe reducer and let us know what happens when you screw the reducer
into the pan.
Regards,
Rob M.
-----Original Message-----
From: Larry Nelson
Thanks to all. I will say that the plug calipers at 1/2" OD. My NPT chart shows that diameter being 1/4" NPT but the thread count is
more like 20 threads per inch, not 18.
Emery, yes, I will call Ragusa but I was trying to get something done yesterday, which was Sunday.
Again, thanks to all replies and PMs. Not rocket surgery, I know.
Larry
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Ragusa Tranny Pan [message #276289 is a reply to message #276218] |
Mon, 20 April 2015 10:58 |
GMC.LES
Messages: 505
Registered: April 2014
Karma: -2
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Senior Member |
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Larry,
Was your Ragusa pan bought new or used? Was the drain plug shouldered and have a an o-ring on it?
I'm wondering if the PO of the pan installed the wrong plug.
Blanking plugs for AN, JIC, & ORB type fittings are shouldered, have a 1/2-20 thread and use a crush washer or o-ring as the method of dealing. They will screw into a 1/4NPT threaded hole, binding slightly as the shoulder bottoms out. This is not the recommended application but I have seen it used in a pinch.
Les Burt
Montreal
'75 Eleganza 26'
The EWIP (Eternal Work In Progress)
> On Apr 19, 2015, at 1:51 PM, Larry Nelson wrote:
>
> I bought a Ragusa tranny pan at the Branson Convention and am now actually thinking of installing it. I want to get a temp gauge installed and took
> the plug out and went to my "fastener" store to get an idea of the size and thread count of that plug. It seems to be a size used only in North Korea
> or Mars.
>
> So, what is the consensus on the size of that threaded opening?
>
> Thanks in advance.
>
> Larry
> --
> Larry Nelson Springfield, MO
> Ex GMC'er, then GM Busnut
> now '77 Eleganza ARS WB0JOT
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Ragusa Tranny Pan [message #276318 is a reply to message #276289] |
Mon, 20 April 2015 17:05 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Les,
Oops! You're right, I goofed!
Of course there is a 1/2" x 20 TPI tap! I bought two magnetic drain plugs for Double Trouble's oil pan like that! DOUH!
Brain fart!
Regards,
Rob M.
-----Original Message-----
From: Les Burt
Larry,
Was your Ragusa pan bought new or used? Was the drain plug shouldered and have a an o-ring on it?
I'm wondering if the PO of the pan installed the wrong plug.
Blanking plugs for AN, JIC, & ORB type fittings are shouldered, have a 1/2-20 thread and use a crush washer or o-ring as the method
of dealing. They will screw into a 1/4NPT threaded hole, binding slightly as the shoulder bottoms out. This is not the recommended
application but I have seen it used in a pinch.
Les
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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