'Had Klima fail on my '91 350SDL and '87 300D. Also received a new bad one
from Gary. He quickly sent a good replacement of course.
Wilton
----- Original Message -----
From: "Curly McLain via Mercedes" <mercedes@okiebenz.com>
To: "Mercedes Discussion List" <mercedes@okiebenz.com>
Cc: "Curly McLain" <126die...@gmail.com>
Sent: Tuesday, May 26, 2015 9:39 PM
Subject: [MBZ] Another weird one (curt content)
I am so lucky! I get the weird ones. I seemed to have the first Klima
relay problem reported on the dickarde list, while Herr Doktor said Klimas
don't fail, and many other oddball things I try to forget.
Curt, and maybe a few others who have driven International Letter model
tractors (or 300 series) can relate to this one. The last H we bought
never idled right. It ran ok at 1/3 throttle or more, but died if you
tried to let it idle. a few years ago I cleaned up the carb and soaked it
in carb cleaner for a few weeks, and put in the new parts in a kit from
the stealer. The kit didn't have all the parts so for the missing parts,
I reused the old ones. No improvement, but the needle didn't leak.
The last time I ran it a couple years ago it was flooding, so I thought
the float sunk. Saturday I had the carb off and on several times and
could not get it to run right. Yesterday I went at it again, and I
noticed what I thought was an idle jet, so I took it out and cleaned it up
and looked at it. brass tube with a hole up from the bottom, but not
clear through, no holes in the side. Seems to me it should either have
holes in the side, or the hole should go clear through. I found an online
parts diagram that confirmed it was the idle jet. I tried to ream it out
with a copper wire clipped off to a chisel point. If it was varnish/dirt
buildup, the wire should have gone through. It appears that the center
was never drilled. So it is like my MB factory "rebuilt" short block
that was missing the hole for one head bolt. The tractor appears that it
was used with a front mounted woodsaw for most or all of its life. So,
maybe they ran it at half or 3/4 throttle all the time and it never
bothered. The carb was painted gray originally, so when i put the kit in,
I painted it gray again. Some collector online said the factory carbs
were painted red along with everything else, but the wheel rims. So maybe
this was a factory parts carb.
Called a farmer tractor collector to ask him if it was supposed to have
the hole clear through, and he didn't know. Yesterday I found online a
guy in Minnysoda who rebuilds tractor carbs, so I called him today and he
confirmed the hole is supposed to go clear through.
I ordered parts from him to fix the carb, so we'll see if it will idle.
This Saturday is a small tractor show, so I will take it over if I have it
running by then. It got new plugs, so when the parts get in it will get
new points, condensor, rotor, and spark plug wires in addition to the carb
parts. That oughta turn it into a happy camper. I am registered to take
it on a tractor ride this summer, so i need it running good for that.
Meanwhile yesterday when I was messing with it i forgot to turn the key
off when I took the carb off the last time. My 12 volt battery burned up
the 6v coil. I had brought along my Bosch 12 V coil salvaged from a MB
gasser (MB content) so I put it on. I guess I am committed now to
converting the tractor to 12V. I've been ambivalent between keeping it
original and converting it to 12v for practicality.
So after many decades of putting MB parts on frods, now I finally have a
tractor with MB parts! That makes it truly mine! I wish an MB Bosch
alternator would fit under the hood. I think I am stuck with a toada or
other rice burner alternator to get one that will fit under the hood,
unless y'all know of some newish MB alternator that has a small OD.
Oh, and the last time I took it on a three day tractor ride a few years
go, it had one of my MB group 49 batteries strapped on, so it has had
some MB content before! A group 49 MB battery will run it all day with no
generator, and still have juice left.
1948 IHC Farmall Model H
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