drivetrain replacement honda mower

Reply

  #1  
Old 05-18-08, 12:47 PM
Member
Thread Starter
Join Date: May 2008
Location: hbg
Posts: 3
drivetrain replacement honda mower

I have a honda mower, model HRR21625SDA.
I ran over a big rock and believe i bent the drivetrain. anyone with detailed help to fix would be great.
 
Sponsored Links
  #2  
Old 05-18-08, 01:32 PM
Member
Join Date: Feb 2008
Location: usa
Posts: 755
When you say drive train, do you mean the shaft where the blade attaches?

What makes you believe something is bent? It is common to bend the crankshaft when hitting objects. It is also common to shear a key in the crankshaft where the flywheel mounts. A sheared key usually presents itself by engine kick back when attempting to start the engine or the engine simply will not start.

You may possibly determine if the crankshaft is bent by removing the spark plug and having someone turn the engine by pulling the starter cord. Observe the crankshaft for wobble, etc. If you are unable to determine by this method, take a length of wire and secure it to the edge of the frame with vice grips. Pull the wire tightly to a point on the crankshaft and cut the wire as close to the surface of thee crankshaft as possible. Turn the blade and crankshaft slowly by hand. Why pulling the wire to the crankshaft observe the tip of the wire for changes in distance. If the gap between the wire tip and crankshaft changes the crankshaft is bent. I hope you understand my explanation.

A small engine shop can use a measuring devise to determine if it bent if you cannot.
 
  #3  
Old 05-18-08, 04:27 PM
Member
Thread Starter
Join Date: May 2008
Location: hbg
Posts: 3
the mower shakes when it is running, and i did check for wobble and it does. what do i do now??
 
  #4  
Old 05-19-08, 12:38 AM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,820
Sounds like you have a bent crankshaft, and you'll need to replace it if the mower is worth it. There are crankshaft straightening devices that some shops use with success. I don't use one, but that may be an option for you.
 
  #5  
Old 05-19-08, 04:05 AM
Member
Thread Starter
Join Date: May 2008
Location: hbg
Posts: 3
the mower was $350 new last year. i would like to keep it, but im going to replace the crankshaft myself. i have never done it before, does anyone think it is worth the hassel?
 
  #6  
Old 05-19-08, 11:35 PM
cheese's Avatar
Forum Topic Moderator
Join Date: Jul 2001
Location: USA
Posts: 16,820
It shouldn't be that bad of a job, but you might want to price the crankshaft before taking it apart. It might be a bit of a surprise.
 
  #7  
Old 05-20-08, 12:46 AM
Member
Join Date: Mar 2006
Location: NE Wis / Paris France{ In France for now }
Posts: 4,808
Did you check the mower blade to see if it was bent out of shape like twisted or push up pretty good or kinda like concave shape ?

That part check that first if not then you got bent crankshaft.

as other they are pretty much right on target.

Merci,Marc
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes