bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
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- 65
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- 24,995
Are Kohler engines just bad in general? Or was it just the Courage? Were they good before a certain point in time? Seems most everything has B&S or Kohler. Found one with a Kohler Command Pro 15 that may be of interest if thats not something to avoid.
Kohlers are the next step up from Briggs and they command a higher price.
Kohler make cheap & nasty engines just the same as Briggs make cheap & nasty engines to go on cheap & nasty mowers which seem to be about 60% of the market sales wise.
The Courage was made to be a machine assembled engine so has a bucket crankshaft and is a wonderful design,
However there was a problem when they reverted to a cast crank ( cheaper than the forged crank )
To get the same strength a cast crank has to be substantially heavier and the extra weight created problems with some engines.
The top plate is known to come loose and then the block cracks down the exhaust side of the cylinder.
Kohler sorted this out by making the bolts a little longer & putting some blue loctite on them.
The vibrations from the heavier crank is also known to fracture the rivets in the decompressor.
OTOH slip the belts off, pull the flywheel & alternator off and the top cover comes off and the cam can be replaced without touching the crank.
If you overfill the engine with oil it dosen't pour out of the pushrod tube.
you can run them across much steeper slopes without the engine seizing.
And for me the big winner, the oil filter hangs down from the top plate so it is easy to get at and clean to change.
The problem was probably due to one one mould on the casting machine being at the thinnest end of the spec range and the latter Courages seem fairly fault free.
Down here I have only seen it happen on the larger single cylinder engines 17 Hp & over and only to the engine fitted to Husqvarnas.