Mornin' Brian et al...
Thanks Can, I would like to think you are on the money however it does not explain why the oil level has gone from full mark to top of the sight glass and I have to keep topping up the coolant. All hoses, coolant and thermostat were replaced prior to Border run this year.
Pressure is coming from hose connected to the right head, at this stage I am yet to remove anything other than Tupperware.
Logged
...if you cannot be assured that your coolant leak isn't connected to, what I believe is a mis-reading of the oil level and think (knowing that oil and water cannot be mixed), that somehow it's unemulsified water in the base of the sump that has raised the overal oil level; then place the bike on a flat surface, on its centre stand. Then with the engine cold, drain off about 100-200ml of oil, that is all you will need to remove to; (A), return the level to that top mark, and (B) ascertain to whether there is water in the engine. Irrespective of quantities, water will always remain below the oil,
if, in the most unlikihood of circumstances it hasn't emulsified.
No point in draining the lot if you dont have to I believe.
My reasoning for
not thinking the bike has a failed head / cylinder seal is based on both components being made from the same materials, alloy. So there have the same heat conduction properties. Unlike, early Japanese engines that placed alloy heads on cast iron blocks, so gasket failures were commonplace, as was frequent cylinder head re-sufacing in order to
staighten the head. Monotorque gaskets did go a way in minimalising these failures.
The ST1100, is not effected with the above mentioned. But following your train of thought, what on earth are you going to then do,
if you lift a cylinder head?
Anyway, enough from moi'...hope you sort it to the point it regains your confidence in your bike and leave you with the thought my Master gave me in my first week as an Apprentice Aircraft Engineer, "
when your presented with a repeat problem, always recheck the work you have previously done before looking elsewhere.."
Cheerio, the can :-)