Original ulster engine rebuild

[Tony Betts]

Hi ivor,

There are NO broken rings.

And if it wasnt such a valuable engine, I might have done the same thing to get to the centenary and back.

I have found some of the problem.

I'll put pics on and catch you up.

Tony

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I've been stripping the bottom end down.

First the sump.

There is a little grit in the oil, and some small bits something.

   

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what is on my finger is the something in the oil.

My first thought was gasket sealant.

But it isn't, the answer is to come.

   

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Oil filter is clear.

And the cassings are still nice and clean after its last full build 35 years ago.

   

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I needed to remove the nosecone to see why oil was being forced up the rev counter cable.

Theres plenty of oil everywhere.

   

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Then I found this.

The seal round the starter dog has broken in 2.

These are the rubbery bits in the sump, and showing on my finger.

And it will be the reason why the nosecone was filling with oil, and being forced up the rev counter cable.

Oil pressure on the gauge was fine, 45lbs cold. And 25lbs hot.

But this may not meen I had the same in the crank.

I've checked the big ends for play.

1, 2, 3, are fine, 4 has a small amount of play.

I'll see how bad it is when I remove the rods.