Output shaft looks deformed?? Is this a problem?

chuckles · Apr 9, 2017

This is a spare engine I picked up for free from a buddy to use on my zero turn when and if my current Briggs intek goes out. Noticed this weekend when pulling it from the doner machine that the output shaft looks deformed on the key way slot and the key looks deformed and maybe broken off the factory pulley?. I'm not sure but aren't these keys molded into the pulleys which would mean this one broke off? Can I still use this engine on my machine if needed or is it a parts engine now? My zero turn has electric pto if that matters.

BlazNT · Apr 9, 2017

Model number off both engines please.

chuckles · Apr 9, 2017

The above engine (the proposed replacement) is a 18.5hp intek twin model 407777 and my current installed engine is an 18hp intek vtwin 405777.

BlazNT · Apr 10, 2017

407777 1" Diameter x 3-5/32" Length
Drilled & Tapped 7/16"-20 - Full 1/4" Keyway
405577 1" Diameter 3-5/32"
Drilled & Tapped 7/16-20, Keyway

They are a match so you have a direct replacement.

Keyways and something you buy and insert into the grove then add your accessory. It is used to allow engine to turn the accessory.

chuckles · Apr 10, 2017

BlazNT said:
407777 1" Diameter x 3-5/32" Length
Drilled & Tapped 7/16"-20 - Full 1/4" Keyway
405577 1" Diameter 3-5/32"
Drilled & Tapped 7/16-20, Keyway

They are a match so you have a direct replacement.

Keyways and something you buy and insert into the grove then add your accessory. It is used to allow engine to turn the accessory.

So that deformed area on the shaft won't hurt anything?

BlazNT · Apr 11, 2017

The way to check that is to buy a new key and put it in and twist towards the deformed area. If it comes out easily then it will cause problems. The picture you gave us does not really show the extent of the damage.

Boobala · Apr 11, 2017

BlazNT said:
The way to check that is to buy a new key and put it in and twist towards the deformed area. If it comes out easily then it will cause problems. The picture you gave us does not really show the extent of the damage.

Also Blaz ... isn't that where the " stack-pulley ' or " PTO " rides or ...and it is locked on by a bolt ..??

BlazNT · Apr 11, 2017

Key is what the stacked pulley or PTO uses to spin. Should have bolt to hold either on.

Boobala · Apr 11, 2017

BlazNT said:
Key is what the stacked pulley or PTO uses to spin. Should have bolt to hold either on.

I've never had occassion to remove a stack-pulley ...YET !! But if it's like removing the pulley off my transaxle ...
THAT was a 2 day fiasco ...had to go careful because I was beginning to deform the pulley .

chuckles · Apr 11, 2017

BlazNT said:
Key is what the stacked pulley or PTO uses to spin. Should have bolt to hold either on.

There was a bolt holding it on. I don't think i am gonna try it till the current engine goes but if nothing else it's a good parts machine....

Output shaft looks deformed?? Is this a problem?

More options

chuckles

Member

Attachments

BlazNT

Lawn Pro

chuckles

Member

BlazNT

Lawn Pro

chuckles

Member

BlazNT

Lawn Pro

Boobala

Lawn Pro

BlazNT

Lawn Pro

Boobala

Lawn Pro

chuckles

Member

Footer Links 1

Footer Links 2