horseman with no horse 22 #1 Posted September 25, 2023 I have a wore out sundstrand 310007 charge pump and motor assembly sitting on my 1967 wheel horse 1076. I’m about to get a 90-2046 unit. They are identical minus the tow valve and year built. They make the same PSI/GPM and have the same hydraulic ports in the same spot. Will the 90/2046 swap right in? I assume it will bolt together right up but I don’t know for sure. The 310007 came of a hydro gear wheel a matic 5054 bottom half, and the 90-2046 came out of a 6065 or something of that nature. Share this post Link to post Share on other sites
daveoman1966 3,624 #2 Posted September 25, 2023 Your 1076 is way way beyond 50 yrs old.... so too will be any 90-2046 unit you install as replacement. My bet would be that you are replacing one worn-out pump with another worn-out pump. To rebuild the pump is NOT a difficult endeavor... and would be my first choice over ---fingers crossed--- the replacement is good. Here is my rebuild .pdf file... I tons of pics if needed to assist. SUNDSTRAND HYDROGEAR refurb.pdf 1 1 Share this post Link to post Share on other sites
horseman with no horse 22 #3 Posted September 25, 2023 I know how to rebuild the pump, and this pump is for testing purposes only, so again I ask will it mount? Idc if it’s worn, will they bolt together and “work”? Share this post Link to post Share on other sites
horseman with no horse 22 #4 Posted September 25, 2023 7 hours ago, daveoman1966 said: Your 1076 is way way beyond 50 yrs old.... so too will be any 90-2046 unit you install as replacement. My bet would be that you are replacing one worn-out pump with another worn-out pump. To rebuild the pump is NOT a difficult endeavor... and would be my first choice over ---fingers crossed--- the replacement is good. Here is my rebuild .pdf file... I tons of pics if needed to assist. SUNDSTRAND HYDROGEAR refurb.pdf 3.35 MB · 0 downloads Will my 90-2046 fit and work? I just want to test it. Share this post Link to post Share on other sites
horseman with no horse 22 #5 Posted September 26, 2023 Alright well I’m just gonna have to find out if they are compatible myself once I get the unit. 🤞 1 Share this post Link to post Share on other sites
horseman with no horse 22 #6 Posted October 1, 2023 Alrighty, I received the new motor/pump. Thanks to Alex.R for helping out. I’m gonna get a baseline tomorrow with the current pump because I now have my brake lever welded so my belt issue should be alleviated. I’ll compare the pumps and show the swap process when I inevitably get there. I’m definitely going to rebuild my old pump too, that guide is pretty detailed @daveoman1966 I’ll see what my testing tomorrow entails and keep you posted. Share this post Link to post Share on other sites
