JamesPolinski 3 #1 Posted April 21, 2019 I am looking for the seal that goes on the shaft for the forward/reverse lever on a 90-2046 pump. I cant make any numbers out on the old seal. It is the one that sits behind the shim and snap ring. Any help would be greatly appreciated! Share this post Link to post Share on other sites
gt14rider 797 #2 Posted April 22, 2019 (edited) Look at sundstrand manual or instructional section has a few trans videos, aldon, and Dman have good post on pump rebuilds. Lj fluid power may have what you need Edited April 22, 2019 by gt14rider Share this post Link to post Share on other sites
pfrederi 17,881 #3 Posted April 22, 2019 Are you talking about #55 and #57?? Share this post Link to post Share on other sites
JamesPolinski 3 #4 Posted April 25, 2019 I'm looking for #54 Share this post Link to post Share on other sites
daveoman1966 3,762 #5 Posted April 27, 2019 (edited) That seal isn't shown on schematic. Edited April 30, 2019 by daveoman1966 2 Share this post Link to post Share on other sites
pfrederi 17,881 #6 Posted April 27, 2019 Looks like some one got tired of the leaky two O ring sealing set up used on the original hydro gear and out in piston to piston seal. 1 Share this post Link to post Share on other sites
JamesPolinski 3 #7 Posted April 27, 2019 Thank you guys very much for all of the help! I'm going to get those seals and put my tractor back together! I'll be sure to post some pictures asap. Share this post Link to post Share on other sites
JamesPolinski 3 #8 Posted April 29, 2019 Update, I crossed the 474261 seals and came up with a Napa part number 27ss4203 and they are to big on the outside diameter for my pump, and the shaft on both ends on the pump I measured using my micrometer and the shaft is .75" the seals are about 5/8" Inside diameter. I think the seal size is about .75" ID, 1.00" OD and probably about .25" wide. When I go into work tomorrow ill try to match them up by dimensions. I haven't gotten the old seal out yet, but when I do ill get some more accurate measurements. Share this post Link to post Share on other sites
pfrederi 17,881 #9 Posted April 29, 2019 (edited) The piston to piston pumps used WH# 103461 for teh motion control shaft That is a SKF 6763 EDIT: I didn't realize the piston to piston and hydro gear pumps used different size shafts. So the seal number Dave and I have will not work. the Hydrogear didn't come with a seal it used 2 o rings Some PO figured out a substitute oil seal. The dimensions of the O ring were a dash 116 ring .737 ID .943 OD Edited April 29, 2019 by pfrederi Share this post Link to post Share on other sites
gt14rider 797 #10 Posted April 29, 2019 This is the seal Aldon used on his gt14 restomod, I ended up using the orings the seals were ordered but I got inpatient and used the orings. The orings for that are Dash# 116 and Dash# 026s Thay are # 52 and 55 in sundstrand manual. Share this post Link to post Share on other sites
JamesPolinski 3 #12 Posted April 30, 2019 Yep, not a seal at all silly me. It was the roller bearing but being my first pump teardown, You don't know until you take it apart, I got some new needle bearings ordered and bought a kit of standard and metric O-rings hope to have it moving under its own power Thursday. I will keep you posted I appreciate everyone's time and input. Share this post Link to post Share on other sites
JamesPolinski 3 #13 Posted May 15, 2019 Update, I got my pump put together and reinstalled it to the reared and put it back under the GT14, I also found another good rearend, and it put it under my other one. The one is going to get the tiller when I get it torn apart and new bearings/seals installed, and the other one I'm hoping to find a mower deck for and all of the mounting brackets. Thank you guys for all of your help and resources! Share this post Link to post Share on other sites
