[AT] 6 to 12 volt starter conversion--splitting tricycles

[charlie hill]

I would want to hang the front half from a big chain fall or something else
that supported it from above so that it couldn't roll over.  Then roll the 
rear
back away from it.  Of course it would require hanging it from something on
the engine that is above the roll center of the whole assembly or bolting 
some
sort of solid bracing to the frame that could transfer the load up above the 
roll center.

Charlie

-----Original Message----- 
From: Ken Knierim
Sent: Monday, December 12, 2016 6:13 PM
To: Antique tractor email discussion group
Subject: Re: [AT] 6 to 12 volt starter conversion--splitting tricycles

On the older Case tractors there were splitting pins for doing some of this
work. Folks usually use pieces of all-thread through some of the bell
housing bolt holes with nuts on them which allows the tractor to be slid
apart and somewhat keep it lined up. You still want to have support to keep
things from tipping over though. Cribbing the engine and rolling the back
half of the tractor back on a floor jack might work if you have a decent
floor to do this on.

Is there anything in the manual that suggests how to do this? I haven't
split a JD.

Ken in AZ

On Mon, Dec 12, 2016 at 3:41 PM, John Hall <jtchall at nc.rr.com> wrote:

> We split Dads DC Case a few years back to turn the starter gear around.
> I made 2 legs that bolted to each side. At the bottom of each leg I
> welded a fairly big nut--1/2, 5/8,3/4--that way I could screw a bolt in
> so that the head was next to the floor. This way I could accurately
> adjust the height of the engine. I may have also made a tie bar to go
> from one leg to the other for rigidity. I don't remember if I spread it
> out wide or made it just the width of the engine block--wider is
> obviously better! Used either a hoist or floor jack to roll the rear
> end. I was at a Deere dealer years ago and they had a similar setup
> except it had adjustable height wheels on the legs--they were splitting
> one of our 4020's.
>
> John Hall
>
> On 12/12/2016 11:07 AM, Dennis Johnson wrote:
> > I have a JD 420 that has a bad spot on the flywheel. I need to get
> organized enough to split the tractor to get to the flywheel. I could
> probably rotate the flywheel 1 or 2 bolt holes and be OK. I think that the
> engine tends to stop on the same rotational angle most times, which causes
> excessive wear on 1 spot. Any good ideas on supporting each end?? Front is
> tricycle type. Back support can be either blocks. Maybe I can use 2 hoists
> on my small gantry crane - need to keep it from tilting. Guess I need to
> build a small beam with some plates to bolt to side of blocks. Anyone have
> a better idea or experience in doing this??
> >
> > Thanks,
> > Dennis
> >
> >
> >
>
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