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[Neil Mullins]

 

[Neil Mullins]

Anyone have info on what this may have been OE to?

 

[Neil Mullins]

Have it stripped to the short block now. To this point it don’t appear that it has ever been apart since new. Cylinder shows very little wear as far as “ring” lip at top of cylinder. However there is some light scuffing on the exhaust valve side.

 

[Neil Mullins]

 

[Neil Mullins]

Valves Still sitting up like there is very little if any “valve recession”. Overall for something of this age, & who knows what kind of care it had. The old engine appears to be in way better shape than I had hoped for.
The remaining oil was in horrible looking black condition, but almost no mucky sludge in valve box or oil pan.

 

[dfrisk]

One other word of advice, check the hub closely on the starter pulley/pto clutch basket, that hub is just swaged or staked on, and it routinely transmits full engine HP to the mower deck, snow blower, anything pto powered, but the fact the hub is loose will be most evident while starting the engine and the starter spins but the engine doesn't. I've had two slip, my 72 and 129 I sold 16 years ago, both now welded, as is my 70.

 

[Neil Mullins]

Bore went .010, crankshaft also .010 under. New bearings, rod, piston, valves & guides.

 

[Neil Mullins]

Have faced PTO clutch parts & ready to reassemble it. Still have a lot of cleaning on sheet metal etc. carb to go through to finish the assembly

 

[RAllison]

Looking good Neil! Have her up and running in no time

 

[dschwandt]

Did you spring for a new governor while you were in there?

 

[Neil Mullins]

Yes

 

[Neil Mullins]

Ready to assemble & adjust

 

[Neil Mullins]

Touchy little thing to get adjusted just right & get lock nuts set

 

[Neil Mullins]

And now I can do it over again. After posting above pic I can see I didn’t line up set screw holes with a friction disk tab!!

 

[RAllison]

And now I can do it over again. After posting above pic I can see I didn’t line up set screw holes with a friction disk tab!!

I just did the same thing a couple weeks back...I didn't do it on the 22nd one though!!!

 

[Neil Mullins]

Actually it will be round 3. Had it all lined up ready to adjust once & realized I needed to install the bearing snap ring. Of course an interruption or 2 later I was rushing. Haste makes waste I guess.

 

[Neil Mullins]

It’s only been 15+ years since I done this LOL. Back then I had a dip tank to remove paint & grease, & a glass bead cabinet to make things look new again. OH well I’m not restoring the finish on my tractor. So all I’m doing is restoring mechanical items. & will do a bit of touch up with a spray bomb on the engine before final install.

 

[RAllison]

I just did the same thing a couple weeks back...I didn't do it on the 22nd one though!!!

2nd not 22nd, I did both my tractors

 

[kmcconaughey]

Rather than take it apart to line it up, I believe that you can use a three jaw puller to depress the center button and thus release the tension enough to rotate the friction disc into alignment with the set screw holes. I seem to recall doing this with the last one that I rebuilt.

 

[Neil Mullins]

I

Rather than take it apart to line it up, I believe that you can use a three jaw puller to depress the center button and thus release the tension enough to rotate the friction disc into alignment with the set screw holes. I seem to recall doing this with the last one that I rebuilt.

I agree a 3 jaw puller should work. I have already loosened the bolts, moved friction disk, & readjusted the clutch.