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Radiator cap for C Farmall

T

thumbanger

Member
Hello going to replace caps on my c and Super c I see they have pressure and non pressure caps what cap should I use. Thanks in advance for your help.
 
I`ll take a stab at this and say Super C with water pump should have pressure cap and C should have non pressure cap unless C had water pump added.[/quote]/u]
 
I thought C and Super C all both used pressure caps. I just saw another post that indicated some Cs had a non-pressure cap. Just look at your filler neck. If the top of the neck is rolled out you need a pressure cap. If the top is rolled in, get a non-pressure cap.

Edit: I see Mark snuck in a reply while I was typing.
 
Jim, First time I`ve ever beat anyone typing a reply !!!!! I use the old hunt and peck method. I just went out and checked my parts books and will say you are correct they both list same part numbers for caps, so it`s a pressure cap for both. Mark
 
Jim: Super C definitely would have all been pressurized, due to the water pump. If one looks at Super A, first pressurized was serial number 336711 in 1953, 19,290 tractors before water pump in the SA1.

I have no idea about the C, however your description of the radiator neck, outlines what he must use.
 
An easy way to tell which radiator you have is to try fuel tank cap on radiator, if it fits you have non pressure radiator.
 
Use of a water pump or a pressure system are really separate items. The H always had a water pump but only later ones had a pressure cap. The later Cubs came with a pressure cap but never had a water pump. My recollection was that the C (as Mark confirms) always had a pressure system. The C engine was tweaked up to higher speed than the A, so the pressure system may have been required.

NDS said in much fewer words how to tell what a particular tractor needs.
 
Considering the similarity of C's, SC's, and my 200, what is the correct pressure, for the pressure radiator cap you are discussing here ? Cap on my 200 has inner brass washer wearing out, and no PSI stamp on the exterior of the cap.
 
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