Wanted Piston

Post by **billt** » Sun Jun 11, 2006 1:22 am

I have just bought a 1954 morris minor with a 1000 engine. One of the pistons is broken. Where can I get a new piston? The old one is marked M1710/4 MOWOG H45 Above the MOWOG is a diamond which I think has the No 1 in it.I live in Canberra Australia.

Post by **bmcecosse** » Sun Jun 11, 2006 9:38 am

I would inspect all the pistons very carefully - it's unlikely that just the one has ben damaged - but of course depends on circs. The diamond is a tolerance thing - forget it. You need to know the bore size - usually if standard it would be marked 'STD' - also you say '1000' engine - but is it 948cc or 1098 cc ? Engine number beginning 9 means 948, 10 means 1098 - the pistons are very different! Bull Motif will sell you pistons - and if it's a 1098 then many of the MG places will have pistons, and some may have for 948 although they are harder to get now.

Post by **billt** » Mon Jun 12, 2006 1:39 am

The motor has 950 stamped on the block at the front right hand side.
Does this mean it is a 948?.Thanks!

Post by **Cam** » Mon Jun 12, 2006 2:25 am

Yes it does.

Post by **bmcecosse** » Mon Jun 12, 2006 7:29 am

So it's the smaller bore size - shared with 848cc Mini - although the pistons are different height!