Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

Sunstar hydro leak


Tarheel

Recommended Posts

Tarheel

 Well, the good news is that I found the hydro leak on my Sunstar. The bad news ? I found the leak on my Sunstar.

Set the rear of the Sunstar on jack stands so that the rear tires were a couple of inches off the floor. Started the engine and at less than half throttle and the hydro level at full forward I began to see fluid dripping now and then.  There was a pretty strong thunder storm and I didn't feel like laying on the floor looking for the source. Went out a while ago and removed the tunnel cover and found the leak. It was coming from the input shaft seal. Not that big a deal until I looked up the seal and bearing (1678979sm and 1678981sm) both NLA.

 Still not such a big deal maybe as I have 4 or 5 loose Sunstrand units around. I can take a charge pump from one of those and try to match the seal and bearing. If that doesn't work I can just install it as is on the Sunstar.

Link to comment
Share on other sites

SmilinSam
Posted (edited)

GENUINE Agco-Allis Deutz-Allis Chalmers LGTractor 1918 1920 Hydro Seal 1678981SM | eBay

 

I generally source most of my parts from Ebay. The above seal is on my watch list  as I may need one here too .

 A little pricey, but this seller has them anyhow.

 

I know the output shaft seal on mine is bad and already obtained that one( still shows available).

 

 Might get my tinwork all pulled next week.

Edited by SmilinSam
  • Like 3
Link to comment
Share on other sites

Tarheel

Thanks Sam.  Good luck with your repair.

Link to comment
Share on other sites

the summoner666

Simplicity shows the seal size in the parts lookup .

.688 x 1.25 x .25

SKF 6765   $13.00 on eBay

Screenshot 2024-05-08 at 19-39-55 Search by Brand.png

Screenshot 2024-05-08 at 19-42-50 CR Seal Finder.png

  • Like 4
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...