753 bobcat 1993 crank but not start and wen start make lot of blow smoke

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Israel4707

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Joined
Nov 11, 2012
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HI all i have bobcat 753 1993 he coz mi alot of trouble to start and wen he finly start he make lot of blow smoke i just install 4 new injectors and 4 Glow plugs but no change at all even worse. Wen i oppen the solenoid i so he full of congealed oil look like black mud pliz halp mi guys
 
Have you done a compression test?
What colour smoke? white?
Are you getting power to the glow plugs?
Do you have a good battery? the engine needs to crank nice and fast to start easily.
 
Have you done a compression test?
What colour smoke? white?
Are you getting power to the glow plugs?
Do you have a good battery? the engine needs to crank nice and fast to start easily.
Hi. I hvae new batary 95a, the glue plugs geting power, the smoke is whait he has smell of a burnt oil. And for the compretion test i have no com test tool and is to much expencive to take the bobcat to the mechanic. Ther is another method to chake compretion wethout the gauge?
 
Hi. I hvae new batary 95a, the glue plugs geting power, the smoke is whait he has smell of a burnt oil. And for the compretion test i have no com test tool and is to much expencive to take the bobcat to the mechanic. Ther is another method to chake compretion wethout the gauge?
You need a gauge to test the compression, there is no other way.
While the engine is cranking, can you try giving it a quich shot of WD40 or engine start into the air filter? See if it pops. If it does, you may have a fuel suppy issue.
Sadly, there is little anyone can suggest without a compression test to know you have enough compression for the fuel to ignite. That may be why there is sludge in the bores
 
You need a gauge to test the compression, there is no other way.
While the engine is cranking, can you try giving it a quich shot of WD40 or engine start into the air filter? See if it pops. If it does, you may have a fuel suppy issue.
Sadly, there is little anyone can suggest without a compression test to know you have enough compression for the fuel to ignite. That may be why there is sludge in the bores
Need spark(glow plugs), fuel(white smoke) and compression to have a running diesel engine. You've got the first 2 it sounds like, but like Tazza says, we need to hear about the compression.
 
Need spark(glow plugs), fuel(white smoke) and compression to have a running diesel engine. You've got the first 2 it sounds like, but like Tazza says, we need to hear about the compression.
Its sounds like the pressurizing pump is drawing air in the fuel line. diesels can't have any air leaks this will drop the required pressure. check the fuel lines and look for corrison that could be a pin hole.
 
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