Jump to content
Old312-8

Fuel Diaphragm Arm Broken?

Recommended Posts

Old312-8

So today, my 312-8 tractor would not fire up. Gave it a few cranks on every choke setting and throttle setting. Checked for spark, had spark. Checked for fuel, had fuel coming through tank but not up to the carburetor. Line from the fuel diaphragm was not clogged, so it was the diaphragm. Pulled it off, and I noticed something. The arm that goes in the block to the crankshaft broke clean off, and was now rattling around in the oil. (Probably broke on startup this morning) Anyone else had this issue happen? Seemed pretty surprising, had a good laugh considering I did an oil change after I saw the arm broke off and it dropped out of the drain plug.

  • Thanks 1

Share this post


Link to post
Share on other sites
 
Old312-8

When I replace it in a few days I’ll get a picture, leaving it on for now.

  • Like 1

Share this post


Link to post
Share on other sites
 
oldredrider

You got lucky. Very lucky. Had a fuel pump arm break off on 1 of mine and it took out the whole bottom end.

I only use electric pumps now. 

  • Like 2

Share this post


Link to post
Share on other sites
 
Ed Kennell

Your lucky day.  This is one time a non starting tractor was a great thing.

  • Like 2

Share this post


Link to post
Share on other sites
 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...