Thank you Oyster.
I don't have the tools or the experience Nudge. The new seals may be less interesting, but I expect they will provide better overall performance.
Anyway, back now to where I was a week or so ago, however this time with both shaft seals and gearbox drive seal replaced, a few other components fitted and some issues sorted along the way.
For the benefit of those contemplating replacement of seals in Sturt Turner P5, P55, P6, P66 Marine Engines (and probably other models as well), the following pics and notes will be of assistance. Needless to say, reverse order applies for removal.
Replacement seal (type SC 200 112 37 TTEO 23 4) fitted to rear crank case housing.
Magneto/Waterpump drive sprocket installed on shaft. Note locating pin.
Spacer installed on to shaft.
Fit chain to sprocket. Secure with wire or similar at upper end, until ready to install the Magneto drive assembly.
Fit external bearing retainer. Comprises a recessed flat section at rear side to facilitate correct alignment. Secure into position with washers & screws (2). Note bearing faces out to clutch cone. Take care when removing/fitting this bearing. It will fall apart but is easily reassembled.
Fit shaft keys (2), clutch cone and secure with nut. An 11/16BSF or 5/8BSW tube spanner is required.
I forgot to photograph the replacement of forward shaft seal, however this is a much more straight forward process. Remove forward crank case assembly. remove bearing from shaft. Remove old seal and collet. Clean and lubricate all. Refit collet. Fit seal. Fit bearing. Refit forward crank case section.
All above is well worth doing in my humble opinion. Only real problem is sourcing a suitable tube spanner ie as without removing the clutch cone access, the crank shaft cannot be removed from the rear crank case section. Small investment for big gains. Expect to pay around $10 Australian for the crank shaft seals (2) and the gearbox seal (type HSU JAU HJ 801098 TC 1.437 2.250 0.375, not shown here), grease nipples and a couple of circlips.
Here she is again, this time with control column and magneto drive in place.
All bright hardware will be painted over per original in due course.
Regards,