[Kremor]

So, I've been thinking of replacing the 36 year Tecumseh engine on my great little 57. I know the vertical shaft size is 7/8"Dx3-5/32"L. Besides the possibility of drilling new holes in the chasis to mount a different engine, is there any other factors I'm missing.

But here are the 3 engines I'm considering:

Tecumseh Vert Mower CARB Comp Engine 6.5HP 7/8"x3 5/32"

Only $159.99

Performance, dependability and value are what you can expect from Tecumseh. This engine is smooth, quiet, easy starting and dependable with plenty of torque for even the toughest jobs. HP: 6.5, Engine Type: CARB Vertical, Shaft Dimensions Diameter x L (in.): 7/8 x 3 5/32, Fuel Tank Capacity (qt.): 1.25, Lubrication System: Full pressure, Governor System: Mechanical Tecumseh vertical push mower engine 4 cycle Lightweight L-head design Flywheel Patented Easy Start Performance (ESP) technology ensures easy starting Full pressure lubrication system keeps all critical areas supplied with oil for longer engine life Aluminized muffler protects against rust and keeps engine quieter, longer Muffler guard Premium mechanical governor provides positive, instant response to changing load conditions Automotive style paper element air filter gives you superior engine performance and protection Extended fill tube with dipstick Quick start primer 1.25 quart fuel tank with watertrap In-tank fuel screen CDI ignition Certified to EPA Phase II, CARB Tier II standards.

Kawasaki Engine
6hp Vertical 7/8"x3-5/32" Keyed Shaft, OHV, Recoil Start, Fuel Tank, Muffler

$200.00

Briggs & Stratton 190cc 675 Series™ Vertical Engine produces 6.75 ft.-lbs. Gross Torque. The engine's Prime 'N' Pull easy starting system delivers the right amount of fuel to the carburetor for consistent one-pull starts.

$149.99




Any input or advice would be awesome!

 

[woodpecker41]

The Kawasaki is the best of the group but I don't think any will work for you. You need to have a heavy flywheel engine that doesn't depend on a blade as part of the flywheel weight to run. I believe all three of those engines are push lawnmower engines that require a blade to run. Second problem is non of those engines has the HP that your original 7 HP had. The manufacturers for the last twenty years have overrated HP significantly. To get the same HP in a modern engine you need to be in the 10+ HP range. Roger

 

[Kremor]

Makes sense, I've looked all over the forums for any other engines I could use without alot of fabrication that I just don't have the equipment let alone the know how for.

 

[112buddha]

i bought the first for my 70,and while the shaft is the same,it doesnt have a flat bottom.i had to make some 1/4 inch spacers to mount it,and made a 7/8 steel bushing to space the pulley to the correct place.not done yet,still havent got the linkages hooked up yet.

 

[rattosh51]

Here's a great site on coverting your 7hp engine to a 8hp engine for the 57...
http://dalemaley.webs.com/savingthejohndeere57.htm