[AT] IH 2504

[charlie hill]

When I was in high school a bunch of us from FFA and our advisor went away 
to
summer camp.  It was about 6 hours away in the NC mountains.  The advisor 
drove
and one of the dads drove and then the car I rode in belonged to the father 
of
one of the class seniors and he was allowed to drive.  We were the last in 
the 3 car
caravan, driving on an interstate highway with no means of communication 
with the
other cars (1967).   We realized we had a recap coming off of the right rear 
tire.
We had no idea where we were and knew that the other cars might not miss us 
for
some ways and then would have to find an exit to get off and come back.  We 
were
able to drive a ways further so we were planning our tire change "pit stop". 
We pulled over, stopped
all 6 of us farm boys jumped out each with a general idea of what task we 
would do.
In about 3 minutes if that long as I remember it, we were rolling again and 
were coming up on the
next exit when we met the other two cars coming back to find us.  Then we 
had to pull over
and wait for them to get turned around and get back up to us.

Very few forces on earth can exceed the skills of 6 farm boys on a mission, 
fueled by fear of
getting lost, being late for a week or fun and/or disappointing their 
elders!  LOL

Charlie

-----Original Message----- 
From: Herb Metz
Sent: Thursday, June 15, 2017 6:53 AM
To: Antique tractor email discussion group
Subject: Re: [AT] IH 2504

Spencer, had to laugh at your "I got really fast at reseating the arm on the
side of the road"; reminded me of our old 1936 Chevy car had some crud in
the gas tank and occasionally when fuel amount got low the crud would lodge
over the supply outlet and car would stop because of no gas. So, take wrench
from drivers side, get out, loosen gas cap, open right side of hood, use
wrench to remove gas line from back of carburetor, reach body down to blow
air back through gas supply line to dislodge crud particle from over gas
line in the tank, reinstall gas line to carburetor, close right side of
hood, tighten gas cap, get in, and go again.  Problem seldom occurred if gas
tank  supply was >half tank.  We get to where we could do that with dress
clothes not getting soiled. Herb(GA)



-----Original Message----- 
From: Spencer Yost
Sent: Wednesday, June 14, 2017 11:23 PM
To: Antique tractor email discussion group
Subject: Re: [AT] IH 2504

Surprised it ran much at all.   I had a kinda similar issue with a 70s  Ford
engine in a 78 Courier pickup (not the Mazda engine).  Had an overhead cam
and floating rocker arms that relied strictly on tight clearances to stay in
place on its pivot point.   One arm was getting worn to the point that once
the engine got hot enough one of the arms would occasionally fall off.

I got really fast at reseating the arm on the side of the road. (-;

Good luck and keep us up to date.

Spencer Yost

> On Jun 14, 2017, at 11:03 PM, Dennis Johnson <moscowengnr at outlook.com>
> wrote:
>
> Last week I was at my Oklahoma cabin and finally figured out what was
> going on with my IH 2504. It would run for a few minutes until things
> warmed up, and then loose power and die. It was progressively getting
> worse. It acted like it was running out of fuel. Would set a minute, and
> then restart for a little, and die again. I thought it was a fuel issue,
> but gravity seldom fails and I had took settling bowl and card apart and
> all looked acceptable.
> It finally dawned on me that I had a valve issue, and intake valve was
> heating up and holding open enough to ruin the vacuum where it would not
> suck fuel mixture into engine. Was not able to check compression because
> my special sockets were in my Texas shop.
> Got some "charity case" Isuzu put together to clear my cabin garage (out
> temporarily-it is missing compression so I will need to pull head and fix
> valves) Then I drove the tractor in and pulled the head on it. Bit of a
> pain to do with loader on it.
> Findings were:
> #1 - bent pushrods was off of the rocker, so intake would not open and
> cylinder not firing.
> #2 - significant exhaust valve leak
> #3 & #4 - valves hold gas in head, probably adjustment was out on one or
> both.
> Exhaust and Intake manifold was missing about 1/8" of casting on the #1
> port.
> Head now at machine shop, and replacement manifold and gaskets are
> ordered.
> I need to work on throttle linkage - it is stuck in one position and will
> not move. Also need to install some working and readable gauges.
> Hopefully I can get head back and parts in so that I can  next time I go
> to cabin. Need to fine torque for head bolts, and valve adjustment values.
> I need to remember to get my old oversized plug sockets - plugs look
> larger than the normal 13/16" hex size. Only needed to use these special
> sockets once every 10 or 15 years, so I hope I can find them.
>
> Dennis
>
> Sent from my iPad
> _______________________________________________
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