WD45 Hand Clutch Slip After Fluid Change

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I did not see anything like this this posted anywhere so I thought I'd ask.

I had restored he 1953 wd45 a number years ago. It turned out beautifully. Run like a top, no problems no issues. 

I had change the engine oil and coolant during the restoration process. I got to wondering last year how long it had been since the other fluids that had anything done to them. I had taken the plugs out and checked before running it and it had fluid in it but what exactly was it?

I crawl under the 45 with my drain pan and wrench and pull the first drain plug. A grayish putty type goop starts oozing out. There was maybe a quart or so then it changed over to water. I repeated this process with the other two drain plugs I found under the tractor. Same results. Now mind you this thing ran fine. No chattering, whining, slipping, nothing. 

From what I understand with this 45, two of these boxes or cases are gear boxes. The other one is the hydraulic system. In 1953 two of them would have been filled with something like 90 weight and the other one would have been filled with hydraulic fluid. I had read somewhere on this forum as well as other forums that today's modern hytran fluid is a much superior lubricant than what was availavle in 1953 and it can be used in all of these systems. I figured what the heck, it works in my modern tractor why not.

Got everything topped off and put back together. Started it up and started moving it around. Everything appeared to be working fine, no unusual noise or anything like that. I'm just riding the 45 down my long driveway in 3rd gear and I start to notice I appear to be losing speed. It becomes more noticeable as I start up a slight incline. It gets to where I downshift to 2nd using the hand clutch. 

As I pull back on the hand clutch in 2nd gear no forward movement. Try 1st, nothing. I do find if I pull back on the hand cluth with firm pressure even after it clicks in the the tractor will move. The harder I pull back the better it moves. 

How do I fix this? 90 weight back in the clutch case? Why did it work with grey goop and water? I have the cover off the clutch. It looks like everything is engaging. Any suggestions? 

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Jdmvafi4 Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 19 Jul 2016 Location: Middletown,VA Points: 3	Post Options Post Reply Quote Jdmvafi4 Report Post Thanks(0) Quote Reply Topic: WD45 Hand Clutch Slip After Fluid Change Posted: 08 Jul 2017 at 2:51pm
	I did not see anything like this this posted anywhere so I thought I'd ask. I had restored he 1953 wd45 a number years ago. It turned out beautifully. Run like a top, no problems no issues. I had change the engine oil and coolant during the restoration process. I got to wondering last year how long it had been since the other fluids that had anything done to them. I had taken the plugs out and checked before running it and it had fluid in it but what exactly was it? I crawl under the 45 with my drain pan and wrench and pull the first drain plug. A grayish putty type goop starts oozing out. There was maybe a quart or so then it changed over to water. I repeated this process with the other two drain plugs I found under the tractor. Same results. Now mind you this thing ran fine. No chattering, whining, slipping, nothing. From what I understand with this 45, two of these boxes or cases are gear boxes. The other one is the hydraulic system. In 1953 two of them would have been filled with something like 90 weight and the other one would have been filled with hydraulic fluid. I had read somewhere on this forum as well as other forums that today's modern hytran fluid is a much superior lubricant than what was availavle in 1953 and it can be used in all of these systems. I figured what the heck, it works in my modern tractor why not. Got everything topped off and put back together. Started it up and started moving it around. Everything appeared to be working fine, no unusual noise or anything like that. I'm just riding the 45 down my long driveway in 3rd gear and I start to notice I appear to be losing speed. It becomes more noticeable as I start up a slight incline. It gets to where I downshift to 2nd using the hand clutch. As I pull back on the hand clutch in 2nd gear no forward movement. Try 1st, nothing. I do find if I pull back on the hand cluth with firm pressure even after it clicks in the the tractor will move. The harder I pull back the better it moves. How do I fix this? 90 weight back in the clutch case? Why did it work with grey goop and water? I have the cover off the clutch. It looks like everything is engaging. Any suggestions?

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Lester Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 08 Jan 2010 Location: Indiana Points: 521	Post Options Post Reply Quote Lester Report Post Thanks(0) Quote Reply Posted: 08 Jul 2017 at 3:12pm
	You need to take some shims out of hand clutch.

Bill_MN Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 12 Sep 2009 Location: Sioux Falls, SD Points: 1471	Post Options Post Reply Quote Bill_MN Report Post Thanks(0) Quote Reply Posted: 08 Jul 2017 at 7:38pm
	Yep, you probably had a little corrosion or rust on the discs due to the water in there, and together with the old thick gunk in there probably helped it grip even though it was worn down. Drain and put fresh new hy-tran in it will have a tendency to clean it out and lubricate everything again. As Lester said remove shims
	1951 WD #78283, 1918 Case 28x50 Thresher #76738, Case Centennial B 2x16 Plow

HD6GTOM Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 30 Nov 2009 Location: MADISON CO IA Points: 6627	Post Options Post Reply Quote HD6GTOM Report Post Thanks(0) Quote Reply Posted: 08 Jul 2017 at 8:44pm
	Pretty easy to do. Don't lose the shims. If you ever replace hand clutch you will need them. Pull the plug and let it drain at least overnight, a day or two is sometimes good.

MACK Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 17 Nov 2009 Points: 7664	Post Options Post Reply Quote MACK Report Post Thanks(0) Quote Reply Posted: 08 Jul 2017 at 10:05pm
	Did you use hydraulic oil or hydraulic wet brake oil? Hydraulic wet brake oil has a additive in it for wet clutches and brakes that the cheaper hydraulic oil does not. I'm sure clutch needs adjusted also. MACK

Gary Burnett Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 11 Sep 2009 Location: Virginia Points: 3093	Post Options Post Reply Quote Gary Burnett Report Post Thanks(0) Quote Reply Posted: 09 Jul 2017 at 1:08am
	The hand clutch and hydraulics are supposed to have 20W engine oil as well as I remember.May need adjusting too.Does the clutch 'snap' in when you pull it back?

j.w.freck Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 16 Sep 2009 Location: karnack texas Points: 1153	Post Options Post Reply Quote j.w.freck Report Post Thanks(0) Quote Reply Posted: 09 Jul 2017 at 9:45pm
	mack is right on course.tere is a measurement with a feeler guage for the correct clearances,dont have it avail.i wonder if he strained the oil and checked for crumbled clutch facing material?????