water in the oil :/

[thestig246]

Afternoon all, unfortunetly after a engine rebuild im getting water in the oil, it has gradually risen over the past month and now its turned milky the only part that wasnt changed was the liners as the chap helping me said they were in a good condition, as they had been replaced before (about 10yrs ago).

Any thoughts or suggestions? i was thinking of trying some rad weld and change the oil and see if it works, its seems abit frustating taking it all apart again after years of rebuilding ect
THE worst part is the engine runs as sweet as a nut! It will start on the first crank everytime, everyday!

Many thanks Dan

[Brian]

If you are getting water in the oil it is 99.9% certain it is liner seals, liner or the block. Does not really matter when it was done, I have had it happen on my Nuffield within two years of fitting new liners.

You could take the track rod off then the axle support and drop the sump. If you then put a little pressure in the system you can look up and see where the leak is. I would remove all the liners and check them, it may be best to install a full set.

Make sure you get the right liners, tractors before 1962 had one "O" ring at the bottom but from 1962 to 1964 the liners had two rings, one at the top and one at the bottom. The outside diameter of the later liner is slightly larger and it will not fit in the earlier block without forcing. Check you liner protrusion too. 0.002" to 0.004".

[thestig246]

Thankyou brain i was thinking maybe it was that or the head gasket. so how would I go about testing the block? Might be an idea before putting new liners in maybe?

dan

[Brian]

The block usually erodes around the liner seals and can be easily repaired with Molecular Metal or some other type of good quality filler. Clean everything up well and use an old "O" ring in the groove. We used a substance called "Belzona" and this lasted for many years.

Most likely you will find "metal worm" on the sleeves.