Cummins 855 questions

Try DIY Repair manuals, thy might have what you need for an original operators manual but as far as the motor you might call cummins with help on that.

 

Yes, that is the manual. You have a Big Cam 4 engine.

 

You can look on eBay or one of the online book sources

The book that I have is a Cummins NH/NT/NTA 855 shop manual. It explains all repairs to the engine including the water pump, oil cooler, disassembly of the entire engine, valve adjustments, complete engine disassembly and rebuilding, etc.

The big cam 4 engines had what they called a low-flow cooling system. You have to watch and make sure you don't have any problems with overheating. Some people do some people don't.

I think the big cam engines are the greatest of all time. They're simple to work on and don't generally require any special tools. There are plenty of parts available for them and they're not expensive engines to work on or rebuild.

If you have any questions or problems there are quite a few members on the forum that run those engines that know them inside out. I'm sure someone will be able to answer whatever questions you would have.

 

Ha lol here we go again.....but slick....pretty yellow paint lol smh

 

I have an NTC-444

Cummins quickserve is a good resource:

Cummins QuickServe Online

All the service parts topics are archived. You have to know what you are looking for or click each one and read it to see if it applies to your engine. Over the years part numbers change and/or Cummins discovers systems need upgrading to solve an issue. One thing I found on my truck was the air dryer needed a "make-up" line. Pretty simple to add once I figured out how the system was supposed to work and what parts I needed.

PAI Industries also has some good schematics and offers a lot of replacement parts:

PAI Industries, Inc. - Catalog

 

Depending on the model that will be normal, though it may just need a valve and injector set.