Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sign in to follow this  

Main Crankshaft seals

Recommended Posts


On my Simplicity Broadmoor 728, I have my 8 H.P. torn down in my basement. I have ordered both new crankshaft seals. The ones in there are in pretty good shape. But, i decided to add them in their anyway. (Only $5.OO more) Do i need a special tool to install or remove the seals.

Share this post

Link to post
Share on other sites

I replaced the seals on an engine last week. I drilled small holes through the seals on opposites sides of the shaft then screwed drywall screws into the seals just far enough to get a good bite. A couple of tugs with a pair of pliers and the seal popped off. I installed the new seals by tapping them on with a rubber mallet and a PVC coupling of the correct diameter.

Share this post

Link to post
Share on other sites


. With the crankshaft out, just pop them out gently with a screwdriver, protecting the edges of the block, gentle taps

back in are fine.....

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

Sign in to follow this  

  • Who's Online (See full list)

    There are no registered users currently online

  • Today's Birthdays

    1. Glenn_Galle
      (76 years old)
  • Recent Status Updates

    • Bubba1997


      Searching for a Sleeve hitch and breaking plow and other equipment if price is right and also a deck for a B1 thank you 
      · 3 replies
    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁

      · 1 reply
  • Adverts