The engine story

as mentioned earlier when the engine was removed from the MX it was rather poorly, for reasons unknowing to me (but i fear some cheap nasty oil might be invloved) 2 of the cyliders were burining oil very heavily, both on start up (vavle stem seal) but also under acceleration (oil scraper ring)

so the engine was removed from the MX with the plans of re-building it, (until a visit to the westfield factory changed that)

so with the engine out a full strip and re-build was carried out.

Parts that have been replaced:-

valve stem seals
piston rings
big end shells
water pump
cam belt / tensioners
all gaskets

also whilst the engine was stripped, a full clean up and de-coke was carried out, as well as a full clean up and a new lick of paint on the exterior, a previous oil leak had left a fantastic mess of oil and grit over the engine.

now some may ask why not just go and buy another engine?

well it would still leave me with an MX that i would need to have an engine put back in and repaired, so the descision was made to keep the engine and fully rebuild it.

well on first stripping off the head i was very pleased to discover that the block and bores were in an almost brand new condition, with no ridge at the top of the bore and a lot of the original honeing marks still there, is appears that the engine has not had a hard life.
there would also be a risk of not knowing the history of any other engine that i would buy, so in the long run i feel better knowing the full history of the engine i have, just to have peace of mind when going to track days, and the nurburgring.


to replace the valve stem seals, the head needed to be completely stripped, so all the valves were removed, de-coked, and re ground into the head, making sure every thing was done properly before rebuilding every thing.