Why is there white smoke coming from my diesel engine?
Diesels can also put out white smoke when fuel passes completely through the engine and reaches the exhaust without having been burned. This might be caused from the engine being too cool to burn the fuel, low compression in cylinder (s), fuel injection timing, defective fuel injector, burnt out glow plugs, clogged air filter or poor quality fuel.
What causes wisps of smoke from Cummins injector?
Sometimes, if the injector body is cracked externally, you may be able to notice a small wisp of smoke from the injector. The wisp of smoke that can sometimes be seen is actually the atomization of fuel being released from the crack. But this wisp should not be confused with blow-by, which will be seen also.
How can I isolate a cylinder in a Cummins Engine?
The only way that you can isolate an individual cylinder is to cut off the supply of fuel – in order to do this in a common-rail system you’ll have to cap it off. For the Cummins engine, I start with the first cylinder and remove the hard line between the fuel rail and injector.
What do you need to know about a Cummins Engine?
Tyler has been elbow deep in diesel engines for years, especially Cummins, so he is a wealth of information when trying to cure a plagued engine. The very first thing that needs to be checked is battery voltage.
Is there a 24 valve Cummins ISC 350?
Cummins ISC 350 24 valve…? New to site and Motorhomes. Looking at buying a used 2000 39 ft coach. The dealer says it’s a 24 valve 8.3, 350 hp cummins. I have heard of a 24 valve 5.9 but not a 24 valve version of the 8.3.
What makes a PT Cummins blow white smoke?
Low compression ratio coupled with late static timing . Most PT cummins especially the higher HP small cams blow white smoke until they are warm . also check for sticky rockers on the wet cylinders. you will need a book to put it back together,:drinkup injector setting is kind of fun . Thanks for the info.
Can a Cummins engine quit smoking at idle?
You cannot advance the timing on these things enough to make them quit smoking at idle because the timing at full load would be advanced so much it would ruin the engine. Cummins designed two modified PT fuel systems to adress this problem before going to a computerized fuel system.
What does white smoke mean on a Duramax engine?
White smoke from an LB7 Duramax engine often indicates faulty injectors. We’ve heard of rollin’ coal, but rollin’ snow? Not a good sign. Blowing white smoke is a red flag for your diesel engine, yet we see this happen all the time to our customers.
