378Pete 237 #1 Posted August 24, 2015 Thanks in advance for your help..... 1969 charger v8 with a b/s 12hp repower. If the belt is removed and I spin the pump pulley both rear wheels will move forward slowly . But when I put the belt on the forward tension stops all wheel movement. I confirmed by removing belt and spinning pulley with pressure towards front of tractor and again will not rotate rear wheels. I am completely stumped. Share this post Link to post Share on other sites
stevasaurus 22,240 #2 Posted August 24, 2015 I am thinking that you have received no answers because I am stumped also. Understand, I know nothing about automatics, but I do know the guys that do could use a little more information. Have you had this horse and now it is not running...did you just get this horse and you are trying to get it running?? A little back ground sometimes goes a long way in getting someone to offer help. If I read what you are typing literally, it sounds like it should be...don't know. Anyway, Welcome to Red Square and I hope my response will initiate some responses from the people that can help. It should have the Eaton 6 transmission. 1 Share this post Link to post Share on other sites
Ed Kennell 35,932 #3 Posted August 24, 2015 Not much experience with Hydros either, but two thoughts.... Is the pulley / shaft key OK ? Is there any radial movement in the shaft that would indicate the bearings are bad ? 1 Share this post Link to post Share on other sites
953 nut 51,944 #4 Posted August 25, 2015 http://www.wheelhorseforum.com/files/file/608-transmission-hydro-eaton-6-7-sm-492-4220pdf/Don't know a lot about Eatons but if you read this manual you may be able to find out what is going on.Good luck. Share this post Link to post Share on other sites
378Pete 237 #5 Posted August 25, 2015 I got it with a blown motor. Visually shaft and key are perfect. If spun by hand operates perfect but with the forward pull of the belt or pressure forward with hand spinning it will not spin rear axle Share this post Link to post Share on other sites
shallowwatersailor 3,213 #6 Posted August 25, 2015 I'm not up on Sunstrands either but it looks like a HydroGear version. I found a link for the repair manual. It looks like it could be tested under pressure using a drill for power if you don't have it connected to an engine. Hope the link helps.http://www.searstractormanuals.com/manuals/sundstrand_90.pdf Share this post Link to post Share on other sites
bmsgaffer 2,043 #7 Posted August 25, 2015 I wouldn't think too much about it until you can get it under test with a motor (engine, drill, or otherwise). Most hydrostats work funny when only being spun at hand speed when they are supposed to be moving 3600 RPM or so. You can often see 'normal' operation if you get it spinning above 1000 rpm or so. Share this post Link to post Share on other sites
953 nut 51,944 #8 Posted August 25, 2015 (edited) "69 Charger V8 came with an Eaton 6 hydro, don't think it has a Sunstrand. Can you shoot a picture or two?If you don't have a 1000 RPM drill I'm not sure you could learn much using a drill to drive a hydro. Edited August 25, 2015 by 953 nut 1 Share this post Link to post Share on other sites
shallowwatersailor 3,213 #9 Posted August 26, 2015 (edited) "69 Charger V8 came with an Eaton 6 hydro, don't think it has a Sunstrand. Can you shoot a picture or two?If you don't have a 1000 RPM drill I'm not sure you could learn much using a drill to drive a hydro. A 1/2" drill will usually do 1200 rpm. My DeWalt HD 1/2" will do 850 rpm. "Close enough for government work." Is it an Eaton, or a Sundstrand? Edited August 26, 2015 by shallowwatersailor Share this post Link to post Share on other sites
378Pete 237 #10 Posted August 26, 2015 Guys thanks for replying and offering links. I apologize for the delayed responses. I drive over the road and don't get much down time until the weekend.With all the info provided from you guys I have determined that it is an Eaton. It will lock up the tranny with the belt attached so I can't turn the motor over. It will only spin and operate normally if there is no horizontal pressure applied. If I push the pulley forward towards motor while spinning it is very hard to move at all and zero response at the rear axle. But if you just spin it like a TOP it will spin very easy and you can see the rear axles making forward. movement. I am so frustrated considering all the work I just did. This was suppose to be my boys so he could help me mow and now it May be next season "69 Charger V8 came with an Eaton 6 hydro, don't think it has a Sunstrand. Can you shoot a picture or two?If you don't have a 1000 RPM drill I'm not sure you could learn much using a drill to drive a hydro. Pretty sure it's an Eaton. But I will snap a pic when I get home Saturday. Share this post Link to post Share on other sites
Ed Kennell 35,932 #11 Posted August 26, 2015 (edited) Still curious ...can you see horizontal movement in the shaft when you push forward and back on the pulley? Is the input shaft binding where it enters the seal? Edited August 26, 2015 by ekennell Share this post Link to post Share on other sites
shallowwatersailor 3,213 #12 Posted August 26, 2015 Just looked at a brochure for a 1969 Charger V7 (1-7741). The Toro database for 1969, and 1970 (changed to V8) shows it as a 5074 transmission. The brochure information shows it as a hydrostatic transmission with a limited slip differential. Could the problem be in the differential? 1 Share this post Link to post Share on other sites
378Pete 237 #13 Posted August 26, 2015 (edited) Just looked at a brochure for a 1969 Charger V7 (1-7741). The Toro database for 1969, and 1970 (changed to V8) shows it as a 5074 transmission. The brochure information shows it as a hydrostatic transmission with a limited slip differential. Could the problem be in the differential? It does have a slip diff and just from hand turning i can tell t is operating as normal Still curious ...can you see horizontal movement in the shaft when you push forward and back on the pulley? Is the input shaft binding where it enters the seal? To the naked eye it appears to have no movement. The bearing and clip visually look stable but I am thinking that it has to be moving the lower part of the shaft. Edited August 26, 2015 by 69chargerv8 spelling error Share this post Link to post Share on other sites
stevasaurus 22,240 #14 Posted September 1, 2015 Are you going to try to fix the B&S engine? Do you have another engine you could put on the horse? I am thinking the guys may be right about having it under power to work properly. Can you post a picture of the trans so we can identify what you really have? 1 Share this post Link to post Share on other sites
378Pete 237 #15 Posted November 6, 2015 Turns out like many said that it is operating just perfect under power from engine. Charger is complete and up and running perfectly. Thanks for all the help. Now I have a 60 suburban and an rj58 to get going for the girls 1 Share this post Link to post Share on other sites
