troutbum70 858 #1 Posted February 19, 2020 Put a new plug in today took a 2 mile ride half of it up a pretty good hill. Plug got quite black around the edge, tranny pump temp was 141 degrees when I got back. I noticed a tiny bit of ATF bubbling around the fill plug like it had air pressure in it, and did find when the push is in the drive position I can push it a little bit in both directions maybe a little less effort in reverse. So I am thinking acceleration valves need attention, any other thoughts? And I also did find the throttle shaft is sucking air. I have decided to nick name this tractor stinky because the exhaust stinks so bad, which I hope goes away after issues are fixed. 1 Share this post Link to post Share on other sites
troutbum70 858 #2 Posted February 19, 2020 I agree but when adjusting the settings that's where it seems to run the best, but with the throttle shaft sucking air it's hard to get it right I am sure. Plus the secondary jet is not sealing properly as I can turn it all the way in and the tractor will spit and sputter but continues to run. Share this post Link to post Share on other sites
Stepney 2354 #3 Posted February 20, 2020 There is a tiny breather hole in the tranny filler. It shouldn't make any pressure. Locate it and blast with air. Soaking in gasoline can help. Share this post Link to post Share on other sites
troutbum70 858 #4 Posted February 20, 2020 Yes I don't understand why just the outside of the plug is so black, when the electrode and all look like a pretty good burn. And I will clean up the filler tube and clean the vent it needed. I may get one of the carbs from Norman and see how that goes. Share this post Link to post Share on other sites
Pollack Pete 2273 #5 Posted February 20, 2020 Time to rebuild your carb.Remove carb.Take completely apart.Soak all parts in one of those gallon parts cleaning solution for 1 day.Remove parts and rinse with water.Blow out everything with compressed air.Put everything back into the parts cleaner.Repeat these steps 2 or 3 times.I've only had one carburetor that I couldn't get unplugged using this method.Ebinmaine is right about the cost of rebuild kits.I always have several in my spare parts cabinet.When the carb is back on the tractor,use NOTHING but non-ethanol gas.A little bit of SeaFoam doesn't hurt once in a while too.Good luck. 1 Share this post Link to post Share on other sites
troutbum70 858 #6 Posted February 20, 2020 Pfrederi I have no idea how far it could be pushed, I did not want to damage seals or other parts by forcing it to continue pushing. How far might I push it before it would cease to push any further? I am thinking the tranny is sluggish, but that is an uneducated guess as I have never had a hydro before. We have a couple much much newer cub cadets on our old family farm that use to keep the grounds mowed and those buggers move pretty quick, but they have 20 something HP twin cylinder kohlers I believe. So I don't think I could compare my old 1970 WH to them. Share this post Link to post Share on other sites
troutbum70 858 #7 Posted February 20, 2020 I could probably put an app on my phone or take a GPS along for a ride Eric to check the speed. Thanks had not thought to try that. 1 Share this post Link to post Share on other sites
troutbum70 858 #8 Posted February 20, 2020 When pushing by hand the first quarter turn of the tires is easy then it gets tight and have not tried to force it beyond that point. They still roll, so I should continue to push and see if they will lock up completely? And I have been thinking about carburetors and the throttle shaft precisely, there is no way to seal that shaft at 100 percent do you think? Share this post Link to post Share on other sites
