Gettysburg Axel 4 #1 Posted August 11 Good afternoon I have an issue with a gt14 I’m currently building. I’m in the process of installing a 18 HP Briggs opposed twin into a gt14 I recently picked up. The previous owner told me the transmission worked good the only issue was the engine supposedly through a rod so he pulled it. Once I got it home I hooked up a predator engine to test the transmission and the only thing that would work was the lift arm. I have no forward or reverse. I don’t know if there could just be some gunk in the system blocking up somthing but any advice is very appreciated. I would like to continue with this project but I am currently stumped on the transmission. Thank you in advance for any help. Share this post Link to post Share on other sites
meadowfield 2,758 #2 Posted August 11 check the tow valve on the top of the transmission. If lift works, then charge pump is working, it is likely that the valve is open.... good luck! 1 Share this post Link to post Share on other sites
953 nut 60,348 #3 Posted August 11 The Tow Valve is probably open which allows you to push or pull the tractor around. Once it is closed the transmission will probably operate well. It is not easy to get to but the attached thread should be helpful. Share this post Link to post Share on other sites
Gettysburg Axel 4 #4 Posted August 11 Thank you for the advice on the tow valve I did change the direction it was facing and still wasn’t moving. It did feel like it could go further. Should the valve stop turning when it is closed? Share this post Link to post Share on other sites
stevasaurus 23,303 #5 Posted August 11 edited...sorry, my 876 turns in to work and turns out to roll free. Share this post Link to post Share on other sites
pfrederi 18,714 #6 Posted August 11 (edited) NO the valve is a port valve turn it 180 degress. Handle should face front to back if it does not roll turn it another 180 Edited August 11 by pfrederi 2 Share this post Link to post Share on other sites
Gettysburg Axel 4 #7 Posted August 11 So with some messing around I kept turning the valve until it moved. The current position is the only spot it will move. It’s about a 1/6th or so past where it should be. Share this post Link to post Share on other sites
meadowfield 2,758 #8 Posted August 12 it should in theory drive at 12 and 6 o clock, roll freely and 9 and 3, and perhaps bypass and leak a bit anywhere in between! 1 Share this post Link to post Share on other sites
953 nut 60,348 #9 Posted August 12 11 hours ago, Gettysburg Axel said: I kept turning the valve until it moved Could be in need of a bit of cleaning and new "O" Ring. The tow valve is not well sealed from the elements and can be a bit rusty. This photo is from the other post I attached earlier. Share this post Link to post Share on other sites
Gettysburg Axel 4 #10 Posted Sunday at 05:07 PM So I got the tractor running and driving. On flat surfaces it move around fine. Going up hills it slows to a crawl at full throttle and the direction lever full forward. I did pull the tow valve apart and it looks to be in good shape. I did put a new filter and did an oil change. The oil that came out didn’t show signs of any catastrophic failure (no metal), just looked like it was burnt. Share this post Link to post Share on other sites
953 nut 60,348 #12 Posted Monday at 12:06 AM 6 hours ago, Gettysburg Axel said: On flat surfaces it move around fine. Going up hills it slows to a crawl at full throttle and the direction lever full forward. Couple of possibilities come to mind. The acieration valve springs take a pounding and probably are contributing to this problem. The manual shows where they are located and Lowell @wheelhorseman has them in stock, link attached. The other prospect is the pump and slippers needing a little TLC, @daveoman1966 did a great tutorial on this. https://wheelhorsepartsandmore.com/product/transmission-acceleration-springs-2-7052-9215-2-7264-9858/ Share this post Link to post Share on other sites
Gettysburg Axel 4 #13 Posted Monday at 12:09 AM Thank you for the advice I rather get this transmission fixed up instead of replacing it. 1 Share this post Link to post Share on other sites
oliver2-44 10,781 #14 Posted Monday at 02:56 AM Changing for a 30wt to 40 wt oil may help. 1 Share this post Link to post Share on other sites
