Chrishar 544 #1 Posted May 26, 2022 Have a 702 wheel horse tractor transmission that I rebuilt with all new bearings and seals but when it is running and driving it makes a noise like two pieces of metal together I have took it a part three times and can't find anything wrong with it and no metal in it help please and thank you 1 Share this post Link to post Share on other sites
953 nut 55,227 #2 Posted May 26, 2022 Is there a little space between the input pulley and the transmission case? Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,041 #3 Posted May 26, 2022 You will need help because you can not shift gears with the belt guard off. Have to start it in gear. Remove the belt guard and see if the noise disappears. 3 Share this post Link to post Share on other sites
Chrishar 544 #4 Posted May 27, 2022 20220526_194651.mp4 Share this post Link to post Share on other sites
Chrishar 544 #5 Posted May 27, 2022 This is the noise it's making Share this post Link to post Share on other sites
Chrishar 544 #6 Posted May 27, 2022 13 hours ago, 953 nut said: Is there a little space between the input pulley and the transmission case? Yes there is and has a new idle pulley too Share this post Link to post Share on other sites
Chrishar 544 #7 Posted May 27, 2022 13 hours ago, gwest_ca said: You will need help because you can not shift gears with the belt guard off. Have to start it in gear. Remove the belt guard and see if the noise disappears. It still there Share this post Link to post Share on other sites
stevasaurus 22,738 #8 Posted May 27, 2022 Do you have oil in it?? If so, how much and what viscosity?? I listened to your video about 8 times, and it actually sounds OK to me (or at least I can't detect the rubbing). Should be approx. 2 qts of 90 wt gear oil. Have you driven it around in all gears yet?? Does it shift smooth?? Do you think it is inside the case?? You might try about 1/2 to 1 cp of Lucus Oil Treatment...it is like STP. That should help quiet the gears. 2 Share this post Link to post Share on other sites
Chrishar 544 #9 Posted May 27, 2022 I rebuilt four other ones and they or quite and this one is noise it's more noise when I drive it round how can I fix it Share this post Link to post Share on other sites
stevasaurus 22,738 #10 Posted May 27, 2022 Well, thanks for not answering any of my questions. Without any pictures of the inside of the trans, I can't see if anything stands out. I still do not know if you think this is inside. I did offer a solution that may help...DEPENDING ON WHAT IS GOING ON !!! Try some Lucus Oil Treatment. 2 Share this post Link to post Share on other sites
Chrishar 544 #11 Posted May 27, 2022 Yes it has the right amount of oil in it same oil I run in the other transmissions with no noise I uesd two different casting I had will this be making it make noise but one is what came with the tractor the other one is not all the gears or form the transmission that was on the tractor it as all new bearings and seals so what can it be I put a treatment in the oil in all of my transmissions to help it out and yes I run 80w90 oil in them 1 Share this post Link to post Share on other sites
stevasaurus 22,738 #12 Posted May 27, 2022 I really think your transmission is OK. Yes, it is loud, but not a bad loud. The case halves should be fine and not an issue. If it runs in all gears and shifts OK, I would just use it and see if it just needs to break in to quiet down. Sure wish you had a picture of putting it together, but it sounds like you know what you are doing. If while driving it around the noise gets louder, then let's open it and take a look. 1 Share this post Link to post Share on other sites
Chrishar 544 #13 Posted May 27, 2022 It shifts good I have not got to drive it around yet will in two weeks and see what happensand see how it sounds thanks for the help 1 Share this post Link to post Share on other sites
oliver2-44 9,748 #14 Posted May 28, 2022 (edited) With you using two different case half’s did the dowel pins go together easily? If so that would indicate they are properly aligned. If you have to work to get them to bolt together that might indicate the half’s are not quite matching/aligning properly. Edited May 28, 2022 by oliver2-44 Share this post Link to post Share on other sites
Chrishar 544 #15 Posted May 29, 2022 It went together really easy had no problems with that at all 1 Share this post Link to post Share on other sites
Lagersolut 661 #16 Posted May 30, 2022 After I got my 416-8 back together 2 years ago ( replaced cracked gear that was ticking - appeared to be a bad casting not abuse ) with all new bearings etc it whined and made noise for a bit - after running it around awhile getting the oil circulated/ break in I don't even notice it anymore - quiet as a church mouse . I was actually concerned did something wrong/not right too . 1 Share this post Link to post Share on other sites
Chrishar 544 #17 Posted May 30, 2022 When I drive it round it makes a bearing like noise in 1 and 2 not so much in 3 gear Share this post Link to post Share on other sites
stevasaurus 22,738 #18 Posted May 31, 2022 One thing you could try...jack up the rear end, put it into one of the gears...take a long screwdriver and use it like a stethoscope (holding the handle end to your ear). Carefully touch the case around and near where the shafts are. If one area sounds worse then other areas, you may have found the issue and where to look. Be safe doing this, maybe pull the back wheels. 1 Share this post Link to post Share on other sites
