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Maytag Model 92 weak link?


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  #1  
Old 08-13-2016, 09:39:33 PM
Gasser Gasser is offline
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Default Maytag Model 92 weak link?

New here, and new to Maytag engines. Wanting to modify a model 92 for use in a board tracker project. Just picked one up, and to me it looks like the connecting rod and flywheel would be the weak link if increasing rpm. What kind of rpm can the factory flywheel handle? I'm hoping to run the motor on a small bowl style carb.
I'm hoping if I can make a single work well, I'll build a 45 degree v twin with two 92 cylinders.
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Old 08-14-2016, 11:03:17 AM
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ehpower2 ehpower2 is offline
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Default Re: Maytag Model 92 weak link?

Personally i would not want to go past factory rpm with a maytag. I know they did make maytag racers for kids but all that was with the factory flywheel. Those parts werent designed to go any faster than what they were designed for. If you really wanted to i would suggest having a crank and flwheel made for it out of more modern materials.
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Old 08-14-2016, 12:56:18 PM
coyote62ny coyote62ny is offline
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Default Re: Maytag Model 92 weak link?

dont run a 92 maytag engine any faster than the 1000 rpm it was desighned for if you want more rpm go on ebay and buy a westbend 580 or 700 they will do what you want or get an old mcculloch mac 15 they are 82cc engines
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Old 08-19-2016, 02:40:02 PM
Andrew Mackey Andrew Mackey is online now
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Default Re: Maytag Model 92 weak link?

The flywheel is NOT balanced, and is of the not best quality casting. The soft bronze rod will hammer out of round at higher speeds, and under a heavier load. The engine is rated at 3/4 HP, when firing at each TDC. the engine itself is not well balanced either - it depended on the washer to keep vibration down!

The twin can be modified to run at high speeds, but it takes a bit of work. pistons rings and rods need to be replaced. A friend used titanium rods and chain saw pistons. Flywheel was replaced with a stainless steel disc, and points run thru an ONAN twin spark coil. Ignition was battery & coil. Crankcase modified to take reed induction and chainsaw carb. Cylinders ported and polished. Engine did 7000 + RPM!

if you are just looking for an engine to push the board, you might look into a Jacobsen 321 engine off a mid '60s reel mower. 2&1/4 HP, 3600 RPM tops, easy to work on. For speedy, more powerful engine, look to the ones that coyote62NY mentioned.
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Old 08-25-2016, 12:38:46 AM
Gasser Gasser is offline
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Default Re: Maytag Model 92 weak link?

Thanks for the input guys.
I'm not looking for crazy speeds. If I could spin just 2k I'd be happy. I kind of figured the rod and flywheel would have to be replaced with machined units. I have a few Mac saws and kart engines, but they don't have the early look I'm going for.
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