7 or 10 HP Briggs & Stratton 'commercial' engine with vertical crankshaft

[Rayp 45]

Wanted another engine in good working order to replace a 7HP model number 170702 1156-02 76069741? I have a Briggs & Stratton 7HP engine from a lawn tractor which I was hoping to use, but unfortunately the manufacturer of the tractor shortened the crankshaft and turned down a section at the end where the pulleys fit.

[Anglo Traction 999]

Hi Ray, I'll keep an eye out on the stock down at the Museum and if anything comes in.  Last resort, but could it be possible to turn an extension for the C'shaft?.

[Rayp 45]

Thanks for your message Richard - I hope you are keeping well! A friend did suggest that it might be possible to turn an extension of the crankshaft, but he agrees with you that it would be preferable to find another engine and keep this as a last resort. The engine is to go on the Wolsey rotary cutter which has a large centrifugal clutch, most of which sits on that part of the crankshaft which has been removed by the manufacturer of the lawn tractor.

[Anglo Traction 999]

Ok,  I've just checked the part nbrs for the engine spec you quoted and the 7hp Osprey spec I worked on and the part numbers are identical (was 260609, now 492476).

This was the basic crank for that size engine, so may not be so difficult to find one.

[Rayp 45]

Thanks again Richard.  I don't know why they change numbers!.