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Re: 1937 120c 282ci rear coolant drain type?
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Home away from home
 
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That should be 1/8 – 27 tapered. 1/8 National Pipe Thread Tapered –(NPT).
The non-tapered version is referred to as National Pipe Tread Straight (NPTS), and does not have the necessary interference that forms the seal. The 1/8 -28 is likely an ISO standard typically not used in the US, but I have seen it in ‘foreign’ cars. The British Standard Pipe Taper (BSPT) is also 28 TPI, plus the thread geometry is not the same as the US standard . . . that too is not likely to seal. In 1937 I would expect 1/8 – 27 NPT. See group 50.720 in the Utility section of the parts list. dp
Posted on: 2022/9/3 22:06
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Re: 1937 120c 282ci rear coolant drain type?
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Just popping in
 
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David Packard, thank you so much for the excellent clarification!
Posted on: 2022/9/4 9:25
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Re: 1937 120c 282ci rear coolant drain type?
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Forum Ambassador
 
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G'day l_anthony,
 to PackardInfo.I invite you to include your '37 120C in the Packard Vehicle Registry.
Posted on: 2022/9/4 22:28
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Mal
/o[]o\ ====  Bowral, Southern Highlands of NSW, Australia "Out of chaos comes order" - Nietzsche. 1938 Eight Touring Sedan - SOLD 1941 One-Twenty Club Coupe - SOLD 1948 Super Eight Limo, chassis RHD - SOLD 1950 Eight Touring Sedan - SOLD What's this?  Put your Packard in the Packard Vehicle Registry! Here's how! Any questions - PM or email me at ozstatman@gmail.com |
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