1940's Internartional D9 caterpiller

jdfamily · Oct 3, 2022

I am helping a friend try to get an old approximately 1940's International D9 caterpillar running.
It has set for a few years. The engine is loose and turning over, we have spark and it coughs and sputters a bit.
The engine is a combination gas and diesel. From what I understand this is supposed to start on gas and then
switch to diesel when it is warm. Each cylinder has a plug and injector. My question is does anyone know
how the three levers are supposed to work that control fuel change and compression? Or does anyone know where I
could get an operator's manual for this tractor? Thanks guys

westga · Oct 3, 2022

Since it's an International the correct model is TD9 crawler. I use to run one back in the late 1960s. If I remember right to crank you push the lever forward to start on gas and the compression release and diesel throttle are lock together when you pull down to run it on diesel. My first place to look would be ebay.

centash · Oct 3, 2022

Not sure on those, but later models only had one lever to switch to diesel. One way to tell...if the engine turns over on the battery relatively easy, then you are in gas mode. If the levers are on diesel mode, the battery won't or would barely turn it. If the engine is running on gas, there would be no response to throttle position,the engine would only run on fast idle, but rather more white smoke as the fuel system injects diesel into the cylinders. On those earlier diesels, one lever was pushed forward at the same time as the other lever was pulled rearward to make the switch from gas to diesel

Ben

rustred · Oct 3, 2022

figure it out your self. not hard. i just forget but some levers are oppositte the others. some are up some are down. for the gas side you will feel pressure on the lever when going to gas side for it to lock in. and for diesel you will hear the snap of the diesel actuation as you are moving the lever. plus when cranking it over ,.. on diesel it will crank slowly like a dead battery, so dont keep doing that as hard on starter. gas side will crank normally. its 2 levers not 3 levers. i been around these engines all my life and have lots of them gas start tractors. its one of the best ideas ih had back then. and no other company even had a deisel engine out when ih desiels came out., other than caterpillar which use a pup engine for starting. so figure out your levers then post back. what you are doing here is running it on gas for one minute then u switch it to diesel using the decompression lever and the throttle. and you are then running on deisel.

used red MN · Oct 3, 2022

Sent you an email!

thehickdaddy · Oct 4, 2022

Ih td9 start up procedure
Ih td9 startup

Sam Womer (PA) · Oct 4, 2022

To start the semi diesel you turn on the fuel supply under the hood. There is a small tank, holds about a gallon of gasoline.Pull the diesel throttle the whole way toward you. The compression release is the other lever in the dash. Turn on ignition switch,pull compression release towards you, it should stay there. Pull choke out and engage the starter. Engine should start and run at fast idle. After warmup you open diesel throttle and push compression release the whole way up at the same time. After it starts to run on diesel you turn off ignition switch and close shutoff on gas tank. After warmup if batteries are good it usually starts on diesel. Been there, done that.Sam Womer (PA)..

BarnyardEngineering · Oct 4, 2022

I suspect you meant "where can I get a FREE manual" because a quick google search yields about 1000 different places to get a copy of the paper manual, from weathered originals to quality reprints.

No free manuals, and beware of any site that offers you one. It is probably malware. As soon as you open it, your computer will become encrypted and your phone will start ringing. A person with a foreign accent will be on the other end of the line demanding some form of untraceable payment to unencrypt your computer.

jdfamily · Oct 4, 2022

Red, I did not receive the email, could you resend that to my email address?

rustred · Oct 4, 2022

i dont agree with closing the main diesel at the tank other than that its tipical u tube stuff. plus its a good idea to change the oil in the injection pump. it maybe contaminated with diesel from the transfer pump leaking fuel into the pump. you use the same engine oil 14-40 as the engine takes. it holds about a pit of oil to the full mark plug.

jdfamily · Oct 4, 2022

Thank you so much, that is just what I needed! Now to get back up there and
do some more work on it. Clean fuel, filters, new spark plugs, etc.
Will let you know how it goes.

used red MN · Oct 4, 2022

BY, the link in the email I sent him ..begs to differ.. on
your no free manuals comment. If you paid any
attention to some of the links I posted on a WD9 a
while back you would see what I mean.

used red MN · Oct 4, 2022

Oops, did not see your reply right away. Would you please email me. Then I can return a message to you through my Gmail so I know it will deliver properly.

55 50 Ron · Oct 4, 2022

If the transfer pump is leaking diesel into the injection pump, then it seems logical to close the diesel fuel valve at the tank. Or maybe I don't understand your point.

used red MN · Oct 4, 2022

I had some time so I resent the email. Might check your spam or junk mail folders if the protection settings are pretty tight on your email inbox.

rustred · Oct 4, 2022

its not going to make one iota of a difference. the fuel in the filters will drain down then you have air in the system that needs to be bleed. dont worry i am dealing with this very same thing for a guy on his wd40 closed the main diesel valve under tank now he has been fighting all summer trying to get it bleed and running.he started the engine and run everything dry till it stopped. as i told him if he was not 5 hrs. away i would drive there and get it running for him. trying to get a point accross when someone knows nothing about a diesel engine is a big deal in itself. so do not close diesel valves!!!

r.w.b. · Oct 5, 2022

when you shut er down DONT SIMPLY KILL IT.switch it back to gas,let it run till diesel is burned off chambers cause no matter what the experts say the plugs get fuel on them. every half breed diesel outlines letting fuel burn off then shut it off on gas. ran a td 9 owned a MD worked on a few 400-450 ihc

jdfamily · Oct 8, 2022

One more question guys, and thanks for all the good information. There are some old spark plugs in there that have no
markings. They are something I have not seen before, the curve that is usually directly over the center, is on one side of the
center post on each plug. Any recommendations on what spark plug to use? Thanks again.

jdfamily · Oct 12, 2022

Thanks. Any ideas on what type of spark plug would work best in this dozer? The ones in it are pretty old
and have a unique spark gap setup. Would like to get a more modern plug might help it start.
Thanks.

jdfamily · Oct 12, 2022

Thanks appreciate your information and experience.
Would like to get a newer spark plug for this machine. Any suggestions on what might be a
good plug for these old machines?

jdfamily · Oct 19, 2022

Rustred,
Any suggestions on what type of spark plug I could use in that old dozer? The ones in
it are rather unusual. Something with a hot spark. Thanks.

1940's Internartional D9 caterpiller

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