Cummins ISL valve adjustment interval
Reading my new-to-me Cummins manual and it says a top end service (valve adjustment) should be done on the ISL at 150,000 miles or 48 months. My rig is 6 years old but only has 36K miles. I am havin...
Forum Discussion
"they suggested I have it done now (due to the fact the engine is 6 years old) primarily to show that I have followed the recommended maintenance steps in the event I might need their help (beyond warranty) for a mechanical failure."
If you do need their help beyond warranty, they will be happy to help you and also will charge you the going rate for their help even if you get the valves adjusted. If you do not get the valves adjusted, you are going to receive the same help at the same price.
They may be referring to "customer good will" warranty after the written warranty has lapsed and if you have a serious engine problem, then they may assist you with the cost but you will not get that in writing.
If you do need their help beyond warranty, they will be happy to help you and also will charge you the going rate for their help even if you get the valves adjusted. If you do not get the valves adjusted, you are going to receive the same help at the same price.
They may be referring to "customer good will" warranty after the written warranty has lapsed and if you have a serious engine problem, then they may assist you with the cost but you will not get that in writing.
