674Phil Posted June 27, 2022 Share Posted June 27, 2022 Getting deep into the rear end and getting ready to start in on the clutch and front axle. 5 1 Quote Link to comment Share on other sites More sharing options...
IHC5488 Posted June 27, 2022 Share Posted June 27, 2022 Definitely looks deep! Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted June 29, 2022 Share Posted June 29, 2022 What is wrong with it? Quote Link to comment Share on other sites More sharing options...
674Phil Posted June 29, 2022 Author Share Posted June 29, 2022 When I bought it the hydraulic fluid looked like coffee with creamer in it. Alternator was barely hanging on, however it does work. Power steering cylinder leaked. Few other leaks. Just going through it rebuilding head with new injectors since two pulled the brass sleeves out. New brakes, rebuild hydraulic pump, new brakes and clutch. Some new sheet metal. Trying to find decent fenders as the one had holes cut in the tops for no apparent reason. Have to find IH rims for the one side to match. Just fun little project for first rebuild. 3 Quote Link to comment Share on other sites More sharing options...
674Phil Posted July 16, 2022 Author Share Posted July 16, 2022 New brakes installed and final drives installed. One step at a time 2 Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted July 18, 2022 Share Posted July 18, 2022 While you are inside the rear end are you replacing the parking brake band? Quote Link to comment Share on other sites More sharing options...
andrewn269 Posted August 2, 2022 Share Posted August 2, 2022 Hopefully u did 3 orings on each side and not just 2 Quote Link to comment Share on other sites More sharing options...
674Phil Posted August 9, 2022 Author Share Posted August 9, 2022 According to my mechanic some had 3 and some only had 2. And yes new parking brake. Going through the front axle new u joints, seals and bushings. 1 Quote Link to comment Share on other sites More sharing options...
674Phil Posted August 11, 2022 Author Share Posted August 11, 2022 Front axle apart. New u joints installed waiting on a few bushings and an O ring. Have to go searching for new rims and tires. Also had head reworked new injectors and valves set. 4 Quote Link to comment Share on other sites More sharing options...
674Phil Posted August 15, 2022 Author Share Posted August 15, 2022 Well she runs. Found something interesting in the right front axle Quote Link to comment Share on other sites More sharing options...
674Phil Posted August 15, 2022 Author Share Posted August 15, 2022 Forgot to attach picture. Looks like they damaged the front hub and relined with the brass. That side bearings were extremely hard to remove. Reinstall was extremely hard also. So we assume they damaged the axle as well. After installing hub and all brass bushings and O rings we noticed the hub didn't go back against the knuckle like the other side. After filling with oil a bit later noticed the inside of the hub seaping oil. So we assumed after seeing the brass they had a lot of damage and attempted a fix but turned off too much of the inside of the hub. So now I'll be trying to find a new hub or take other off ant to the machine shop to get the hub built up so the oil seal will be back far enough to do its job. Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted August 20, 2022 Share Posted August 20, 2022 They had an 884 with a ZF front axle at the farm I worked at. We wore that poor tractor right out. I remember needing a few parts for the front axle once and they were almost impossible to find, at least all the salvage yards I checked. My guess is the reason someone used brass to repair the hub was because a replacement either couldn't be found or was more than they wanted to pay. Quote Link to comment Share on other sites More sharing options...
674Phil Posted September 4, 2022 Author Share Posted September 4, 2022 After replacing the repaired right front hub, it was seeping on the back side and left about a 1/4 of an inch to get up snug. So had to find a replacement hub. Thanks to Cook tractor, he searched and found me one. Unfortunately had to replace the big oil seal again. Installed the new hub and the axle wouldn't turn. We noticed this issue before on the damaged hub, but didn't think much about it. After a few brain cells being wrung out, we figured out the alignment mechanism on the knuckle to align the spindle with the axle shaft. After much PB Blaster and an electric impact working the adjustment loose. We were able to align and by trying to mimic tractor load on that adjustment by prying on the knuckle, it turns smoothly. Put wheels on and split in half and now replacing almost worn out clutch. 2 Quote Link to comment Share on other sites More sharing options...
674Phil Posted September 5, 2022 Author Share Posted September 5, 2022 Sorry actually Gap tractor parts found my hub. Quote Link to comment Share on other sites More sharing options...
Vanstractors Posted September 5, 2022 Share Posted September 5, 2022 Wow you sure went head first on that one !Congrats looking good ! 1 Quote Link to comment Share on other sites More sharing options...
674Phil Posted September 15, 2022 Author Share Posted September 15, 2022 Well unfortunately another problem showed up. After starting tractor and starting to bleed the brakes, the front right corner of the head gasket started leaking oil. Pulled valve cover off all bolts torqued to 90 lbs. So we took head off and the front right oil hole on the gasket was offset just a bit. Mechanic said I think at least he said it was coming through the gasket. So went to dealer this time for new head gasket and on this gasket there is a copper ring around that hole and it lined up perfect. Replaced head and torqued bolts and after a few hours to give bolts time to stretch all was well. So I've attached a picture of the aftermarket gasket. After the fact I wish I would have taken a picture of the other gasket to show the difference. Started to bleed brakes again and now the reservoir isn't filling up with fluid for the brakes. By this time we'd had a full day. So we'll tackle that problem Friday. 1 Quote Link to comment Share on other sites More sharing options...
TractormanMike.mb Posted September 16, 2022 Share Posted September 16, 2022 One trick to bleed the brakes is to pinch off the return line that dumps into the top cover of the transmission. Slip some small tubing over the bladder screws and route them so they can drain into the fill plug at the rear of the tractor. We had an 884 that would lose the brakes if the tractor sat for an extended period of time. Quote Link to comment Share on other sites More sharing options...
674Phil Posted September 17, 2022 Author Share Posted September 17, 2022 Well went to pick up tractor and he had the brakes working. Now for new rims and front tires. Crazy alternator connection shorted out after starting it last time and my great electrical guy will replace the parts and he gave me a new alternator. Quote Link to comment Share on other sites More sharing options...
674Phil Posted February 26 Author Share Posted February 26 Bought 12 inch rims and putting wide front rubber on it. Picture shows the difference. Also going wider in the rear. Currently painting centers and rear rims. 5 Quote Link to comment Share on other sites More sharing options...
gafarm49 Posted February 26 Share Posted February 26 keep the pics coming!!! thanks Quote Link to comment Share on other sites More sharing options...
674Phil Posted February 27 Author Share Posted February 27 Rear rims and hub bolts painted. Little sand blasting on leveling arm for 3 point. Replacing the bearing in it when it goes back together. Need to straighten the other side out a bit. 2 Quote Link to comment Share on other sites More sharing options...
gafarm49 Posted March 5 Share Posted March 5 This is a good thread 1 Quote Link to comment Share on other sites More sharing options...
674Phil Posted April 17 Author Share Posted April 17 Well have a little seeping oil on the right front hub. Looks like a small freeze out plug. I haven't called the dealership or looked in the manual yet. Here's a picture comparison of the old tires and the new tires on the front end. Just picked up some really super sharp fenders for it off a hydro 84 and the left connecting arm for the 3 pt. Waiting for decent weather to power wash again and start painting. Rear hubs and centers painted. 7 Quote Link to comment Share on other sites More sharing options...
674Phil Posted July 15 Author Share Posted July 15 Well did a little work. Took off the undersized studs for the wheels on the axle and had to grind away the welds and replace them with new ones. Was able to mount the tires temporarily and get a feel for what she'll look like. Now trying to get some new paint on her. 4 Quote Link to comment Share on other sites More sharing options...
jimb2 Posted July 20 Share Posted July 20 I see in the past someone has adjusted the fuel control screw on the pump to the maximum, so your tractor is probably pushing 70HP. Your doing a great job on the 684, have never seen too many 4WD 684s here in North America. Quote Link to comment Share on other sites More sharing options...
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