Does anyone know what the recommended mileage is for running the rack on a 2002 24v.

I know on the old 12v was needed about 100K .

 

150K is recommended for your first adjustment.

 

I've always heard to do it every 100,000. My truck needed it at 82,000 since one of the valves loosened up and started ticking.

 

Thanks, I’m getting close. 140,000 and the mileage is starting to drop off slightly.

 

I did mine at 135K, since I was installing a new VP and injectors, and didn't notice much sloppiness.

 

Likewise, except I looked at mine at 159K. Only a couple needed attention. I was gonna look at them again in a couple months as my mileage had been dipping a bit, but that could be due to running SW #9 all the time! I've backed it down to SW #5 now and wouldn't you know mileage is back! Odd? Haha!

 

This thread from 2 weeks ago should answer most of your questions. Do a search...you will find more info....
https://www.dieseltruckresource.com/...d.php?t=125861

RJ

 

I'm about due myself at 148,000. Will it make it any quieter? Lately it seems like it's getting louder....or maybe I'm just getting old .

 

I just did mine this weekend at 135,000k. Every one of them needed adjustment. But not all of them were way off. I set mine at .008 and .018. It def made a diff in the way it idled. Way smoother and quieter. Hardest part was turning the engine over to find TDC. My front crank seal is leaking a little bit so it slicked up my belt making it hard to turn from the alt pully with out slipping.