Massey 65 Clutch Adjustment

fixt

Member
I've been reading up on this upcoming clutch adjustment.
I don't have the special Massey tool and doing it from the bottom it wouldn't help me if I did.

I'm reading various distances for the clutch finger bolts.
.080, 090, 2 hacksaw blades with the teeth ground off.
(Two hacksaw blade thickness is about .053 on the ones I've got)


[b:e5e7a3e3e8]What is the real number I'm supposed to set this thing at[/b:e5e7a3e3e8]
3 hacksaw blades is closer to .080 and .090

What started this is grinding on the PTO engagement and a failure of the PTO to stop when the clutch is depressed.
The gap looks to be maybe a 1/4" or maybe a little less right now.

I understand a little grinding is normal due to the sliding engagement.
 
I had 7 of those dual clutch mf's over the years - I'm guessing 9 or 10 overhauls with new or cleaned up clutch packs. The first 4 all ground gears at the 090 spec. All ground at 080. They quieted down at .055 - .060, and I used that afterward.
 
I think .060 is the way to go on the pto clutch bolts. I never had grinding at .090, but .060 produces a lower clutch pedal after you adjust the pedal to the 1 inch block on the foot board. This helps you stop bruising your chin with your knee cap.
 

Allrighty, I completed the clutch finger adjustment today. Adjusted to .060. The secondary clutch bolt heads "looked" to be about the same already, so I didn't bother them at all.

2 hacksaw blades with a layer of aluminum can between them all laminated together with crazy glue and the glue leakage sanded off comes to about .060. A fine impromptu feeler gauge.

Although I did it from the bottom, I would like everyone to know who might attempt this it is a royal pain in the patootie. There is no room for what you need to do. You have to figure it out and roll the clutch plate back and forth until you find a "sweet spot" for the wrench to turn, flip over and get another bite, turn.

You'l need an extended length 1/2" wrench and you might need the 9/16 as well. The 9/16 is for the locking nut if one comes loose, and one of mine did. Then the real fun starts, trying to get a wrench on it to lock it back while checking your gap.

You will need an exhorbitant amount of patience as you can only turn the bolts less than a 1/4 turn at a time and you have to "fish" them onto the bolt, rotating the wrench each time for the offset. A small flashlight you can hold in your teeth helps too.

But, it is done and I'm glad of it. There was an excessive gap from bolt head to throwout bearing. I'd say it was in excess of 5/16" or there about.
I don't know how much pressure plate I have left after looking at that gap.

David P of South Wales was dead on about this job. It can be done but you'll need lots of patience.
 

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