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D7 3T pony motor not starting

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10 months 4 weeks ago #248415 by V14
Replied by V14 on topic D7 3T pony motor not starting
Probably be smart for me to do that as well appreciate the tip. I don't have any gas leaking on the diesel engine luckily. Gas will pop out a hole in the header on the pony that appears to be an overflow hole but when I look at the parts catalog for it it appears there should be something in that hole and it's not overflow I'm not sure though. 
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10 months 4 weeks ago #248419 by V14
Replied by V14 on topic D7 3T pony motor not starting
Well apparently I missed spraying carb clean in a spot on the carb body yesterday and it's clogged. Not having any luck clearing it with carb clean or compressed air. Any strand of wire small enough to fit in the hole but not damage is too flimsy. Any of you guys got tips on how to clear the obstruction? I've never had a carb that couldn't be cleared with air or carb cleaner.
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10 months 4 weeks ago #248420 by josh
Replied by josh on topic D7 3T pony motor not starting
A torch tip cleaning wire set will often work well for that.
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10 months 4 weeks ago #248421 by V14
Replied by V14 on topic D7 3T pony motor not starting
Just looked that up, don't have one of those on hand but I do have pipe cleaners wonder if those may get the job done.
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10 months 4 weeks ago #248422 by V14
Replied by V14 on topic D7 3T pony motor not starting
No luck with the pipe cleaner I'll stop by the store tomorrow and get a tip cleaner set, appreciate the advice.
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10 months 4 weeks ago #248428 by trainzkid88
a tip to get good spark.
remover the mag and clean the mounting faces to bare metal and reasonably smooth surface finish. clean with metho/rubbing alcohol then get a 2b pencil and rub over the faces. take care to only get it on the mating area. reinstall
then clean up the sealing faces for the spark plugs a plug wire can look good but be bad same with spark plugs look good but fail to fire properly under compression.

clean the points and rotor button.
note these old things need proper plug wire not silicone suppression cable.
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10 months 4 weeks ago #248429 by trainzkid88
carb kits are available from the dealer. we were able to get a new butterfly for our d4 from the dealer.
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10 months 4 weeks ago #248434 by josh
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10 months 4 weeks ago #248442 by Fat Dan

further on snowfighter's caution comments about raw gas, last saturday I noticed gas dripping from my over-full pony tank on my recently acquired D7E onto the hot diesel and me in a dry field with no fire extinguisher. fortunately nothing happened. I'm installing a fire extingu
isher.
 

Note on fire extinguishers ... Every Spring and Fall turn your fire extinguishers up-side-down several times. The powder tends to pack too tight for extinguishers to work properly. It is important to invert extinguishers back and forth until the powder flows as you it is inverted. One can tell if the powder inside is packed by a distinct thud as the powder plug will slid down and hit the end of the extinguisher.
Anything above 5 pounds extinguishers are rechargeable most others are disposable.

ACMOC Member
955E 12A08263; 955C 12A04040; 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Bullgrader
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10 months 4 weeks ago - 10 months 4 weeks ago #248444 by Fat Dan

Probably be smart for me to do that as well appreciate the tip. I don't have any gas leaking on the diesel engine luckily. Gas will pop out a hole in the header on the pony that appears to be an overflow hole but when I look at the parts catalog for it it appears there should be something in that hole and it's not overflow I'm not sure though.  
 

Pictures really help. 
 

 

ACMOC Member
955E 12A08263; 955C 12A04040; 955C 12A03563.
1954 No.12 Diesel Motor Grader 8T14777.
1945 No.12 Diesel Motor Grader 9K9320
1944-46 Adams Model No. 311 Motor Grader
1943 IH T9 Bullgrader
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Last edit: 10 months 4 weeks ago by Fat Dan.

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