valve seals C Farmall

Can someone tell me what I should ask Napa for to get valve seals for Farmall C. Thanks in advance.

Sorry, I must have not been clear. There are valve seals for every diameter of valve stem. The umbrella seals are sold on that basis, as well as the Engine model displacement etc. Which because IH never installed a valve seal on those tractors, there are none in a list anywhere for IHFarmall. But getting them takes a capable counter person. You will need the valve stem diameter (that is pretty much it) for umbrellas. 8 of them for all valves, 4 if you only do intakes. I recommend all 8 be put on. JimN

Thanks I was a little lost

Welcome back! Jim

When I ordered my complete gasket set from this site for my super c to my surprise the valve seals came in the package, I did an "a" a few years ago and that gasket kit did not have valve seals, They must be including them now.

JimN, with complete respect, doesn't the addition of valve seals where formerly there were none cut down on the lube that the stem sees?

While usually that would be a good thing to keep very-low-octane oil out of the combustion chamber as much as possible, I wonder if there is a cost in durability of the stems and guides?

That these engines have lasted as long as they have in very large numbers is a tribute to the original engineering...

The seals mearly prevent oil from running down the guides in quantity. Bothe styles do not reduce the iol flow to the point of additional wear. The umbrella style has been common on many engines, The teflon (more technically sophisticated style) , from the late 60s, has been used in most vehicles to control oil consumption while providing adequate guide lube.

There is nothing wrong with tight guides limiting oil flow, but!!! The engines were designed for heavy use in tillage and shaft/belt work running at 1/2 power or better all the time. today these tractors are utility light work and parade action runners that idle and run throttled down a lot. This increased vacuum draws more oil past the (probably worn but usable) guides. We are also using far more scientific oil and it has properties that lend it to getting into small places while keeping things much cleaner. They do not need seals to run well with tight guides. Seals will assist in postponing a head repair when there is life left in the valves. After a fresh rebuild, I would absolutely use teflon based seals on a older engine. Reduced fouling, reduced oil consumption, reduced polution, and better oil control on the stem reducing coking on intakes. I hope this makes my position understandable. JimN