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Farmall 450 Diesel How's it Work?


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#1 silverta16

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Posted 08 December 2008 - 06:17 PM

How do you start a 450 diesel? Do they start on gas and then switch over? Is there a lever or something thats switches the injector pump on? How do you work the starter tank and diesel tank fuel levers? Thanks

#2 n9lhm

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Posted 08 December 2008 - 06:24 PM

How do you start a 450 diesel? Do they start on gas and then switch over? Is there a lever or something thats switches the injector pump on? How do you work the starter tank and diesel tank fuel levers? Thanks

Yes, it's the last of the gas start diesels. Diesel switchover lever is on the left side of the operators position. Sounds like you should probably get an operator's manual, to help answer the next series of questions you'll have after you get it started. :D
Brian
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#3 Jonboy

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Posted 08 December 2008 - 07:41 PM


How do you start a 450 diesel? Do they start on gas and then switch over? Is there a lever or something thats switches the injector pump on? How do you work the starter tank and diesel tank fuel levers? Thanks

Yes, it's the last of the gas start diesels. Diesel switchover lever is on the left side of the operators position. Sounds like you should probably get an operator's manual, to help answer the next series of questions you'll have after you get it started. :D

would you like to sell it? Im looking for one to restore. Once you get it running on gas let it warm up for about 5 min or longer if its really cold then you throw the lever and it changes over to the dielsel side and visa versa when you go to shut down..thats the important part on them engines..you HAVE to let them cool down a while on the Gas side before shutting it down..they are Notted for cracking the heads if ya dont.

#4 blacksheepdiesel

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Posted 08 December 2008 - 08:20 PM

Actually it will run hotter idling on gas than it will on diesel.

Godspeed,
Trent

#5 ihbase

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Posted 08 December 2008 - 10:48 PM

you HAVE to let them cool down a while on the Gas side before shutting it down..they are Notted for cracking the heads if ya dont.
[/quote]


We ran 2 SMDs on pickers for years for seed corn. One was purchased from a neighbor who owned the tractor since new. And never, over the entire time we had those tractors was one EVER shut down from Diesel to Gas.

And I see no way for an engine to "cool" by running on gas...

For what it is worth...


-mike

#6 hawken79

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Posted 09 December 2008 - 02:38 AM

You shut them down on gas to clean the spark plugs so they are easier to start the next time and after it is shut off you should put the lever back into the diesel position to close the starting valves this is suppose to help keep the head from cracking. so I have been told by a few old timers. So that is what I do with mine.

#7 randy hall

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Posted 09 December 2008 - 01:19 PM

You shut them down on gas to clean the spark plugs so they are easier to start the next time and after it is shut off you should put the lever back into the diesel position to close the starting valves this is suppose to help keep the head from cracking. so I have been told by a few old timers. So that is what I do with mine.

not to be a smart ass but how did the sparkplugs get dirty? they have been isolated in the starting combustion chamber since the tractor was switched over to the diesel side.

#8 td14 addict

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Posted 09 December 2008 - 03:48 PM

argue the reasons all you want the fact is IH states in the operators manual to run it on gas before shutting off.
want proof? heres a page form my 1941 TD14 operators manual, guess thats kinda hard to read, give me a few minits to resize


heres a zoomed in version

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  • operating__1024x768_.jpg
  • TD14_operators_manual__1024x768_.jpg

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#9 rjpont

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Posted 09 December 2008 - 08:33 PM

Thanks for that info addict . I've always heard differing stories on cool down procedure on the gas starts and it's nice to see it in print from IH . One thing to consider though , there were a lot of those engines built after that and used for a long time since. Perhaps some of the ideas that seemed best at the time proved not so good in the long run. I'm not saying it's wrong just that experience is a great teacher. We ran 2 ,a SWD6TA and a Farmall 400 diesel and we never switched to gas until we were going to start them. We always let them cool on diesel.
I have been told that the cracking was sometimes caused when the tractors were run with water instead of antifreeze then drained in the fall but there are some cavities in the head where the water remained and thus froze. Don't know if this is correct or not but was told by some guys with experience with them.I think what ever works, works.

Bob.
IH I own ,'45 A ,'48 M, '50 M ,'53 S C,'53 SW4,'54 SH,'54 SWD6TA,'55 F 400 gas,'56 F300,'57 F 450 Diesel,'65 F656 d,f656 g, 3414 g w/ bkho&ldr,'80 884 w/sekura cab and Alo 310 ldr,'80 384 w /1501 ldr,'83 884 4wd w/Sims cab,282&382 Cadets,123 Cub Cadet,315 combine ,37 and 435 sq balers, CIH 3450 round baler, 14 rake ,1190 m/c ,45 cultivator,numerous plows,510 drill, numerous sickle mowers,Fast hitch disc harrows ,etc. more stuff for spare parts.

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#10 Rawleigh99

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Posted 09 December 2008 - 09:11 PM

My 1955 TD9 operating manual says the same thing.
Rawleigh

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