small engine pto size?

[foton]

My daughter has a husky zero turn 4623 it has a kohler courage with a spec # of sv720-3040 engine. These engines were made with no compression release for start up. It is super hard on starters and batterys. Any way the neighbor wrecked his ride on mower but the engine is good a Briggs model 445677 type 0827e1 code 070607yg. I would like to know what the pto side of the crankshaft size is on each engine vs. pulling them both apart to find they are different sizes. I have done searches on these two engines and I can not find any reference as to the pto size. It seems everything else is listed. Would by chance any one know if these two engines are pto size the same? thanks Dave

 

[Gearclash]

Check the valve clearance on the Kohler. Some of these engines become hard to crank if the valve clearance is too great as it defeats any compression release mechanism. Some engines have the compression release ground into the cam lobe and they are very fussy about valve clearance.

Unless the Briggs is a Vanguard trading Kohler for Briggs sounds like 2 steps backwards.

 

[foton]

well I have done the valves , and these engines from what I understand are the worst enginered engines kohler (manf. with no compresssion release) ever had china make,but china just made them for the specs kohler set. I believe kohler was sued over these also. I mean once you get it started it is fine. But the briggs is free and it has no problems at this point. And the zero turn is to the point as I do not want to put to much in it.sooo

 

[dfb]

I agree with double checking those valve clearances. I have seen plenty of smaller motors that would kick back violently with the valve clearance out of spec by very little.

 

[JaNeily]

The PTO diameter and length vary by spec. There is no standard.

 

[foton]

yes I knew there was no standard size but only a few sizes are usally used.I was just thinking that with all the production numbers it would be easy to find out what size were used when made, I guess I will do it the old fashioned way and pull the drive pulleys off and measure them.

 

[dfb]

You could try looking up the crankshaft part # with the Model and Spec numbers, then searching the part number for more details like Diameter, keyed , tapered, etc. I remember doing this ages ago on microfiche.
Lots can happen over the years....like the blower housing with the model number info being swapped from another motor. Measuring is of course the most accurate method.