Help with Valve Adjustment on PT425

[ponytug]

I like SwampmanLA's practical suggestion.
I don't have a 425, so this may be totally off base, but...
I'm sure that I am missing something about the hydraulic setup, but couldn't you use the hydraulic pump to turn the engine? Hook up an attachment and turn it to pump PTO oil? Or lift a side of wheels, and turn one with the treadle down?
Educate me in the ways of the 425, and why this would never work... :mur:

Just for the record, I haven't tried this with my 1445, either, but the 1445 has access to the crankshaft.

All the best,

Peter

 

[MossRoad]

I like SwampmanLA's practical suggestion.
I don't have a 425, so this may be totally off base, but...
I'm sure that I am missing something about the hydraulic setup, but couldn't you use the hydraulic pump to turn the engine? Hook up an attachment and turn it to pump PTO oil? Or lift a side of wheels, and turn one with the treadle down?
Educate me in the ways of the 425, and why this would never work... :mur:

Just for the record, I haven't tried this with my 1445, either, but the 1445 has access to the crankshaft.

All the best,

Peter

Nope.

The tram pump will bypass before it will turn the engine over if you try to spin a wheel.

The main PTO just returns oil to the tank. You can't push the engine over, you'd have to suck the engine over, and, again, it won't work.

Believe me, I've thought about that many a time, too. :laughing:

 

[MossRoad]

Man, I just went and looked at several pictures of people's engine compartments... there just isn't any way to physically turn it from the pump side. What about the back side where the cooling fan is?

Or, just do the remove the plugs and bump the starter trick.

On my 2001 model with the kohler, there's a gap between the VVP and the engine. The VVP is mounted to the fan side of the engine as shown in this picture...

The PTO pumps are mounted to the "normal" output shaft behind the engine as shown in this picture...



I believe almost all of the units made since 2003 or so have all three pumps mounted to the output shaft side of the engine, with the VVP first, then the PTO pumps piggybacked onto the VVP. So there is NO gap on that mount from the output shaft to the VVP.

Take a look at the fan side and see if you can see anything in there. If the fan is plastic or flimsy, don't bother as you may damage it. But it you can stick a bar in there, with the plugs out, you may be able to spin it easily with a flat bladed screwdriver from the rear of the tractor.

 

[Kent]

A side benefit of splitting the shroud across the top of the engine flywheel fan is having access to the flywheel for turning/pushing.

I followed KMA's lead on my engine (http://www.tractorbynet.com/forums/p...ml#post3740605) and have taped mine back together with Gorilla Tape (I think a flexible "H" strip holding the edges together would be ideal, but couldn't track one down).

Interesting that Kohler sells an access panel kit, "Allows for cleaning debris from behind blower housing and also servicing of ignition modules. Kit includes instructions/template for cutting holes in blower housing, plus panels (one with pop-out plug and label for keyswitch), mounting clips and screws."

25 755 21-S - Genuine Kohler Access Panel Kit

But no equivalent for Subaru engine.