Morris Minor Owners Club

I have a USHM3 918cc side valve engine. It doesn't run and needs a rebuild.

It has damaged cylinders and already has +60 pistons.

I don't have the option of using a modern engine as if i do I will have the Series MM lynch mob out to get me .

So i either need advice on getting this rebuilt or does anyone have a replacement ?

Can you still get Ex military engines to drop in?[frame][/frame]

It's either a rebore and sleeve, or - find alternative pistons and just bore it out to suit. I would remove the pistons and measure the gudgeon pin to crown height - and compare with say Minor 948 pistons etc to see if by any chance they are similar.

Ex military engines do not just drop in, they provide a block and moving parts to which you have to supply the rest of the engine. See http://seriesmm.mmoc.org.uk Tech Info ex wd engines

What's the availabilty of SV pistons these days?

East Sussex Minors have +20, 30, 60 and standard listed, thought they quite pricey now. When I got mine from them in 2009 them were Australian made and seemed very good quality. Club spares are also likely to have some available.

Heres my engine rebuild from a few years age
http://www.mmoc.org.uk/viewtopic.php?f= ... 4&start=45

How do i get my hands on an Ex military engine ?
What are they known as ?

'Not common' - the way forward is going to be bore + sleeve, and then new pistons from ESM. Is the crank ok for a re-grind - or is it at bottom limits too?

bmcecosse wrote:'Not common' - the way forward is going to be bore + sleeve, and then new pistons from ESM. Is the crank ok for a re-grind - or is it at bottom limits too?

Thanks. so the plan is to lift the engine and see what condition the bottom end is in.
I am not going to be able to do this for a few weeks now... so watch this space.
Al

Alan Lane wrote:How do i get my hands on an Ex military engine ?
What are they known as ?

They are never around when you need one