What are the symptoms of a broken timing belt or chain on a Cummins ktag8 diesel engine?

There is two types of engine when considering the matter of timing belts and chains...
Non-interference engines.
Interference engines.

Most petrol engines built in the last four decades are interference types and all diesel engines ditto.

An interference engine is where the pistons and valves share the same space making it very important that everything happens at exactly the right time - when the timing belt or chain breaks on an interference engine the best outcome is usually a couple of slightly bent valves because piston to valve contact is inevitable.
With some engines a broken belt or chain is a complete disaster, totally writing off an engine...

The periodic replacement of the timing belt is very important.

I found this info from interference engine database. I don't know if info is accurate?

P0017 Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)

Symptoms of a P0017 will or may include: Malfunction Indicator Lamp (MIL) illumination The engine may run but with reduced performance The engine may crank but not start The engine may exhibit a rattle near the harmonic balancer indicating the tone ring is damaged The engine may start and run, but poorly Causes Causes may include: Timing chain stretched, or timing belt skipped a tooth due to wear Misalignment of timing belt/chain Tone ring on crankshaft slipped/broken Tone ring on camshaft slipped/broken Bad crank sensor Bad cam sensor Damaged wiring to crank/cam sensor Timing belt/chain tensioner damaged An improperly torqued crankshaft balancer A mis-built or mis-timed engine A loose or missing crankshaft balancer bolt The CMP actuator solenoid stuck open The CMP actuator stuck in a position other than 0 degrees

P0300 Random/Multiple Cylinder Misfire Detected

Symptoms may include: the engine may be harder to start the engine may stumble / stumble, and/or hesitate other symptoms may also be present Causes A code P0300 may mean that one or more of the following has happened: Faulty spark plugs or wires Faulty coil (pack) Faulty oxygen sensor(s) Faulty fuel injector(s) Burned exhaust valve Faulty catalytic converter(s) Stuck/blocked EGR valve / passages Faulty camshaft position sensor Defective computer

Hi there,

Generally, in "chain" driven engines, it is not neccessary to change the timing chain unless it is seriously stretched or broken (only timing/cam "belts" require interval changing).

However, if you are experiencing the symptom of chain "rattle", then I would first reccommend you change to the correct grade of engine oil, then secondly, change the chain "tensioner".

This unit will be running a timing chain. Now,The 1.6 "diesel" engine has both a belt and chain. In the diesel edition, the belt runs from the crank shaft to the cam and the other cam is ran by the chain.

if the timing belt is broke - the motor will not crank - if it jumped time - it may run , but be low on power

u might want to have the oil pressure checked, or depending on the engine 3.5 maybe timing chain tensioner.

The 2.2 ctdi engine has a timing chain

If you are experiencing issues with timing (backfiring, dieseling, rough idling, power loss, etc...) your timing chain might indeed need adjustment or replacement. If your vehicle is working without issues it's highly unlikely.