dr pepper
New Member
If its has the correct sump and dipstick and the oil level is normal then the engine should not smoke.
You could try draining the oil to see how much there is in the sump then sort of approximate what the level would be.
What colour is the smoke?, and does it worsen/lessen under load.
The perky 4000 series are good motors, older ones do like to throw the black stuff now and again.
You could try draining the oil to see how much there is in the sump then sort of approximate what the level would be.
What colour is the smoke?, and does it worsen/lessen under load.
The perky 4000 series are good motors, older ones do like to throw the black stuff now and again.
dr pepper
New Member
Blue smoke is oil being burned and black is where the mixture is too rich.
The blue smoke could be from excessive oil level, allthough it would have to be silly high.
Other causes could be worn bores, worn/broken rings, worn valve stem oil seals or a failed head gasket.
A compression test would give you a good idea which end is at fault top or bottom or neither.
Thats put the spanner in the works annit.
Is there any sign of the axle hitting the sump?.
You need a minimum amount of oil to maintain level at the pickup strainer and to absorb heat from the engine without overheating the oil.
Try draining the sump and filling it again with the reccomended amount and see where it goes to on the dipstick.
The blue smoke could be from excessive oil level, allthough it would have to be silly high.
Other causes could be worn bores, worn/broken rings, worn valve stem oil seals or a failed head gasket.
A compression test would give you a good idea which end is at fault top or bottom or neither.
Thats put the spanner in the works annit.
Is there any sign of the axle hitting the sump?.
You need a minimum amount of oil to maintain level at the pickup strainer and to absorb heat from the engine without overheating the oil.
Try draining the sump and filling it again with the reccomended amount and see where it goes to on the dipstick.
doobie
Active Member
my perkins used to burn and leak so much oil i couldnt fill it fast enough to overfill it!! the valve stem seals leaked really badly, so it chucked out tones of blue smoke on start up after the initial blast of black smoke, then after maybe 5mins it would calm down and run with only a mildly blue exhaust. it also seeped oil out of every conceivable point on the engine block....
that engine's dipstick had spanish full and empty marks on it. if your engine was fitted with a different sump then its very likely it will be another 4.203 one. The chances of completely different engine sump happening to fit the 4.203's block are pretty slim (i'd think, someone tell me to shut up if i'm wrong here).
The two sumps i have look of similar size but one has a large square sump in the middle (allowing the engine to happy sit on the floor without falling over) and the other has the square sump right at the back so the engine would not sit on the floor without falling forwards. (I hope that makes some sort of sense)
to overfill the sump and cause smoking you would really have to put a huge amount of oil in.
that engine's dipstick had spanish full and empty marks on it. if your engine was fitted with a different sump then its very likely it will be another 4.203 one. The chances of completely different engine sump happening to fit the 4.203's block are pretty slim (i'd think, someone tell me to shut up if i'm wrong here).
The two sumps i have look of similar size but one has a large square sump in the middle (allowing the engine to happy sit on the floor without falling over) and the other has the square sump right at the back so the engine would not sit on the floor without falling forwards. (I hope that makes some sort of sense)
to overfill the sump and cause smoking you would really have to put a huge amount of oil in.
