i have a lister engine and sometimes loses revs and spurts out black smoke?

Question

I have just had new filters , new fuel pump, new starter , new alternater and it has been ok for about ten trips {100 hours +} but all of a sudden every now and again she sounds different and loses revs and splurts out smoke then its ok again. what do you reckon ?

Answer 1

black smoke is do to a rich/flooded condition. Not sure of the year but maybe the choke is bad ???

Answer 2

Hi Tommy. This sounds almost certainly a fuel problem. Try service exchange injectors, if this doesn't solve the problem then an injection pump (again service exchange) is the answer. You may be able to get your own units recond. but shop around locally to find the best deal. If you do have to change the pump, this will mean setting the spill timing. Get hold of a workshop manual. Best of luck.

Answer 3

It;s a diesel, isn't it? Black smoke is caused by unburnt fuel, you have either an injector going on the blink or the injector pump playing up. What is happening is that the cylinder in question isn't firing properly, hence the loss of power and excess smoke.

Answer 4

Black smoke is to much fuel.
White smoke that lingers is oil burning.
White smoke that dissipates is water vapor.
Its most likely a stuck choke on a carburetor or enrichment injector leaking if you have fuel injection.
Its a fuel problem.

Answer 5

Check your oil level.
Lister engines have an inherent fault with the injector olives. They leak into the cylinders, which could account for the smoking, but also, the sump fills with diesel.

Answer 6

Could be any of the answers below, but before going to any extreme measures check that your governor is free and not sticking occasionally. If it is a bit sticky or catching on something this would produce the problem you are experiencing.

Answer 7

black smoke indicates either oil burning or too rich of a gas mixture

could be one of many things first place to start get a tuneup and make sure the timing is'nt off

check valve lash

do a compression leak down test you can tell the condition of the rings, valves , heads with it

Answer 8

Have you checked your filter head....cleared up my emissions prob....but i still occasionally get inexplicable power loss, ie I open the throttle and the revs drop!

Answer 9

take the exhaust pipe of and flush you will find she is choker blocked with carbon and where outlet manifold smoke comes out reducing size of outlet for fumes to escape

Answer 10

if its fitted with decompression levers check that they are tight and adjusted right