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- D7 Pony Engine chuffing out the crank start opening
D7 Pony Engine chuffing out the crank start opening
3 months 1 week ago #258647
by TOP
D7 17A '56
D7 Pony Engine chuffing out the crank start opening was created by TOP
My pony engine chuffs fume out the crank opening even after I cleaned the breather very good. What is the fix and how hard is it to do and find parts?
D7 17A '56
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3 months 1 week ago #258648
by CrawlerAddict
Replied by CrawlerAddict on topic D7 Pony Engine chuffing out the crank start opening
Sounds like blow-by around the piston rings. I have a pony on a D4 that'll shoot the dipstick out along with most of the oil if you run it with the filler cap on.
Best of luck,
CrawlerAddict
Best of luck,
CrawlerAddict
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3 months 1 week ago #258649
by TOP
D7 17A '56
Replied by TOP on topic D7 Pony Engine chuffing out the crank start opening
That is correct but the blowby got better with a little use Also the breather was blocked originally due to lack of service. 30 minutes in the ultrasonic cleaner helped
D7 17A '56
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3 months 1 week ago #258651
by D8Dude
Replied by D8Dude on topic D7 Pony Engine chuffing out the crank start opening
Do you mean it's fuming from the hand crank right angle drive?
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3 months 1 week ago #258653
by TOP
D7 17A '56
Replied by TOP on topic D7 Pony Engine chuffing out the crank start opening
That's exactly what I mean.Seems like there should be seals to prevent that.Do you mean it's fuming from the hand crank right angle drive?
D7 17A '56
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3 months 1 week ago #258654
by D8Dude
Replied by D8Dude on topic D7 Pony Engine chuffing out the crank start opening
There is a seal in there, it's fairly easy to replace, it was still available through Cat when I replaced mine a few years ago.
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3 months 1 week ago #258655
by TOP
D7 17A '56
Replied by TOP on topic D7 Pony Engine chuffing out the crank start opening
Do I have to take the whole housing off the side of the engine or can it be replaced with the housing in place?There is a seal in there, it's fairly easy to replace, it was still available through Cat when I replaced mine a few years ago.
D7 17A '56
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3 months 1 week ago #258656
by gemdozer
Replied by gemdozer on topic D7 Pony Engine chuffing out the crank start opening
I am still have some 17a poney used parts
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3 months 1 week ago #258658
by D8Dude
Replied by D8Dude on topic D7 Pony Engine chuffing out the crank start opening
The housing needs to be removed from the engine. From memory, there's a plug in the bottom that you can take out to push the shaft out of the gear and the housing.
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3 months 1 week ago #258659
by neil
Cheers,
Neil
Pittsford, NY
Replied by neil on topic D7 Pony Engine chuffing out the crank start opening
Would it be possible to use the self-tapping screw trick to get the seal out or is it too tight in there?
Cheers,
Neil
Pittsford, NY
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