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Old 08-27-2005, 05:21 PM
careco careco is offline
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18 HP B&S In a 618 Grasshopper ?

18 HP B&S In a 618 Grasshopper ?
Can a 18 HP B&S be put in a 618 Grasshopper as they never came with one ! Came with the junk Kohler OHC 18HP engine ! One of the worst engines have ever seen ! Thank God they don't make them any more! A Grasshopper mechanic told me it could not be done and I beg to different ! Any comments on this?
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Old 08-27-2005, 05:48 PM
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South Florida Lawns South Florida Lawns is offline
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A Briggs???

Kohler's are great engines. Or so I thought, what happened to yours? 18hp is not a whole lot for a ZTR. It should work with a brigs, you might have to make a few minor modifications.
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Old 08-27-2005, 05:48 PM
Scotts' Yard Care Scotts' Yard Care is offline
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Ahhh another Briggs fan......

Don't most dealers have an interchange chart for base plate bolt patterns? Then it's a matter of clearance around the engine and proper crank and/or step dimensions of the crankshaft PTO.
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Old 08-27-2005, 06:04 PM
careco careco is offline
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The Kohler OHC

The Kohler OHC was a bad engine from the start and they are not made any more ! They tried to style them after the auto engines and did not work and a rubber belt to drive the over head cams and had all kinds of problems with them had to extend the warranty 2 more years and I found out after the fact ! One year or more to late
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Old 08-27-2005, 09:31 PM
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Brianslawn Brianslawn is offline
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it can be done. i got a couple kohler ohc 16s and dont really like them. the new kohler ohv 18s pack a lot of punch and havent had much trouble with them. might be easier to put one of those in cause the wires and throttle linkage should be the same or close. more modifications with the briggs, but it can be done.
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  #6  
Old 08-27-2005, 10:17 PM
Country Clipping Country Clipping is offline
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I put a 20 HP OHV Kohler on a 618 Grasshopper and it works great... Just make sure the shaft size is the same dim. so you dont have to buy another clutch.
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  #7  
Old 08-28-2005, 10:13 AM
MBDiagMan MBDiagMan is online now
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The engines, regardless of brand, have standard bolt patterns and shaft sizes. All you have to do is find an engine with the same shaft size and length. If you go to one of the several websites that sell small engines they almost always indicate the shaft size and length and there are only a few different ones.

That leaves the bolt pattern. If you find an engine on one of the websites that looks like what you want, just call them and tell them what engine is now in place and they can tell you if it will work.

On those websites, they always have a list of specials. They are a particular engine that they only have one left or something like that. You can get a good deal on them.

If you are going with a B&S, make sure you don't get an Intek. It is a cheap built engine for home use. The Vanguard is made by a Japanese company and is their industrial engine. Don't overlook Kawasaki as a great alternative.

Good luck,
Doc
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Old 08-29-2005, 11:39 AM
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Mowingman Mowingman is offline
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Grasshopper actually has two "kits" that help you easily convert the old kohler 18 to another, better engine. One kit is to convert to a Kohler command 18. The other kit is to convert to a B&S 18hp. Kits do not include the engine.
So, yes, it can be done.
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Old 08-30-2005, 06:18 AM
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ranger351w ranger351w is offline
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Quote:
Originally Posted by careco
18 HP B&S In a 618 Grasshopper ?
Can a 18 HP B&S be put in a 618 Grasshopper as they never came with one ! Came with the junk Kohler OHC 18HP engine ! One of the worst engines have ever seen ! Thank God they don't make them any more! A Grasshopper mechanic told me it could not be done and I beg to different ! Any comments on this?
I would think a B&S would fit as I have a 616 with a 16 H.P. Briggs in it from the factory.
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  #10  
Old 08-30-2005, 07:58 AM
MBDiagMan MBDiagMan is online now
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Yes the kit would be the way to go. Even if you get the engine with the correct shaft length, diameter and keyway and even if it bolts up, you will probably need a muffler to fit the chassis and maybe a fuel line and control cable adapters.

Good luck,
Doc
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