valve stem seal renewal?

This forum is for the Fordson New Major, including the Super Major and the Power Major.
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rich2a
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valve stem seal renewal?

Post by rich2a »

hi, has anyone carried this out without removing the head?
I`m asking because in the fordson manual it says as long as piston is at tdc its do-able. how would i check that each piston would be at tdc? I realise both valves on the piston need to be closed. any tips will be great thanks, rich.
1984 5610 FWD ,1981 ford 4610 ,1962 dexta,1959 power major, 1952 major, 1956 major, 1961 super major.

scoobyjim
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Re: valve stem seal renewal?

Post by scoobyjim »

If you remove the injector and put a small screwdriver or rod down the port. Turn the engine over and the rod will rise. When it stops its at tdc. Then you can push the spring down to remove the collet on the valve and then the seal.

Pavel
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Re: valve stem seal renewal?

Post by Pavel »

With the rocker gear removed you will have 2 pistons at a time on a compression stroke; and with a compression ratio of 15 to 1 it will take effort and time, on your part, to get the pistons to reach TDC. With your rod or screwdriver inserted don't even think about using the starter motor -- you will cause serious damage.

Pavel

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