How much horsepower does a 855 Big cam Cummins have?
How much horsepower does a 855 Big cam Cummins have?
Cummins 855 Big Cam History and Specs
| Cummins 855 Specs | Engine Data |
|---|---|
| Max Horsepower | 605 HP @ 1800 RPM |
| Max Torque Ratio | 1,118 ft-lbs @1800 RPM |
| Governed Speed | 1800 RPM |
| Cylinders | 6 Inline |
Why does my 855 Cummins engine smoke white?
Pull the injector, pressurize the cooling system, drop the borescope down the copper injector cup and take a look around. These engines always did smoke white when cold due to fixed timing. Did you swap injectors to a different hole to see of it is a bad injector or a bad hole?
What makes the Cummins NT855 series so special?
Premium performance. From a series that is service-proven through millions of hours of operation in some of the world’s most demanding applications, the NT855 has been engineered to handle higher injection pressures, with redesigned overhead arrangement, pistons, crankshaft and camshaft.
What did the head gaskets look like on my 855 Cummins?
The three head gaskets looked ok not blown through. sent heads out supposedly pressure tested one was leaking through the injector seat, had all six changed, heads surfaced and rebuilt valve job, valve guides etc. I put the engine back together and set injectors and valve lash.
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.
When did Cummins 855 big cam engine come out?
The 855 Big Cam is regarded as one of the last true variable timing mechanical engines on the heavy duty side before electronics came into play with the N-14. The engine was first introduced in 1976 and mass produced up until 1985.
Pull the injector, pressurize the cooling system, drop the borescope down the copper injector cup and take a look around. These engines always did smoke white when cold due to fixed timing. Did you swap injectors to a different hole to see of it is a bad injector or a bad hole?
The three head gaskets looked ok not blown through. sent heads out supposedly pressure tested one was leaking through the injector seat, had all six changed, heads surfaced and rebuilt valve job, valve guides etc. I put the engine back together and set injectors and valve lash.
How to tell if a Cummins engine is NTA?
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. From what I understand, it is an NTA engine.
