The govenor has failed on my mower. I have a replacement but cannot get the aux drive gear off the camshaft. Anyone know how to do it ?

Hi,
I fail to understand as the cam gear drives the governor and the governor has an "L" shaped bracket with a hole in it that fits on the end of the cam. There is a recess in the sump to accommodate the governor assenbly.
Peace,
Clarke

Hi and thanks for the very quick reply. Yes the govenor is driven by the large cam gear but the L shaped bracket is sandwiched between the large gear and the helical gear that provides drive to the aux take-off. The helical gear is not cast as the large cam gear is but seems to be an interference fit on the shaft, I cannot get this off ?

Richard

Hi,
Got some numbers - model and type on the engine so I can look up a parts breakdown andi see for myself what you are speaking of. I learned many a machine over the years with just IPLs.
Peace,
Clarke

Hi and thanks again for the reply. The Model is a 111782, Type 0178-01, Code 87101008.

Thanks again in anticipation.
Richard.

Hi,
As it turns out, the pdf file of the parts breakdown was small enough to upload here for you. Been awhile since I have seen or worked on one of the old Max engines. Any Briggs dealer who has been in business for a time probably still has a supply of 397795 air filters that he (or she) would love to sell, they became "orphans" when the engine was replaced with the Quantum 35 in the late '80s. That engine also introduced the 398877 air filter that was "orphaned" even quicker.
I digress and at any rate item #742 is a retaining ring that holds everything together. That plate, item #86 even allows the PTO to be serviced without the removal of the sump.
Hope this all helps!
Peace,
Clarke
PS. You need Adobe Reader, most machines come with it since it is free. Version 5 and up.

Clarke,
Thanks for going to all this trouble. Not quite there yet, the cam in my engine is the 46A, the diagram below, not the 46B with the circlip retaining the helical gear. Any more ideas ?

Regards
Richard

Hi,
Well, I looked to see if I could find the 270962 manual online to tell you about. I know where Tecumseh and Kohler manuals are. The search engines often do not find these sites, they are moderately "private" since they are actually violating copyrights, probably.
At any rate try usong rags to shield the lobes and clamp the cam in a vise with the gear upwards and the lobe shaft downwards. You should be able to to see a bit of a slot in the worm gear the denotes where the keyway is. Best to have that facing away from you. Now you will need a pair of medium sized screwdrivers. You will start using them as inclined planes, not pry bars. Lay one perpendicular to the direction of the shaft and with the tip fitting between the two gears but with the tip not pointing in toward the shaft. Instead you want to be using the side edge of the tip to ease the gears apart. With a hammer, drive the first screwdriverto try to begin to separate the gears. I do the first with the handle toward me and driven on the right hand side. Hopefully it will wedge and hold itself in. Then take the second screwdriver and go in the opposite diection from the opposite side. Hopefully the gears will begin to separate. Do not be surprised if the first on falls out upon gear separation. Simply go back to it and drive it further through. Alternate between tha two to continue to move the gear off. When you have reached the maximum width of the blades, then you can try prying. Not with the tips as that will break them; rather slip them in just on the sides of the tips in the same relationship that you used to separate the gears and oush downward. Once you clear the key, it should come free. That is a synopsis of the technique I use. I hope I explained it well.
Peace,
Clarke