mk1-forum.net

Hi all, i have just find a 1275 "s" engine complete, and after dismantling, my Big End Bearing are "2783 C Y" and Main bearing are "KX S1229SA 030 U/S"

Crank is 12G1505 and rod are AEG521

do you know where i can find it...?

Thanks
Olivier

You mean bearings? .030 bearings can be obtained everywhere, Minispares ie.
I'd check the dize of the bigends. If it's a 1505 crank, it's obviously not an S, but according to the rods I guess it's ground down.

Is there a stamped number in the crank? It might be a Mk3S.

Vegard wrote:You mean bearings? .030 bearings can be obtained everywhere, Minispares ie.
I'd check the dize of the bigends. If it's a 1505 crank, it's obviously not an S, but according to the rods I guess it's ground down.

Is there a stamped number in the crank? It might be a Mk3S.

on what side for the stamped number? and which stamped? i'll see

see pictures.

Olivier

If it was all built up and had 521 rods in it then it probably is a Mk 3 S crank - although they usually have the Mk 3 S number stamped on them.

In the U.S. I have seen the 12G1505 crank and AEG521 rods in early automatic Austin America engines, an ADO16 variant.

Kelley

Does not look like a mk3 S crank , only appears to have one oil drilling on big end .

Probably very early austin / morris 1300