My Cummins mechanic says he will bump my timing to 15*, is that O.K. with the future addition of a #10 TST Kit?

What would I expect with 15*?

And how is it done?

Does the pump need to be removed?

Should I go higher?

 

15* is just fine mine is set at 16.5 and i have had no problems yet, it has been that way for about 2 years now. and no the pump does not need to be removed but you will need the timing set for it it is available from your local tool truck and i believe that mac snap on and matco all carry them although they may need to be special ordered. timing advance will increase throttle response a little and help burn more fuel your throwing at it, it may also make the truck start easier.

 

Make it 15.5* and call it good. That is that best all around timing IMO. With the timing advance you should all see a mpg increase as well.

 

Timing should help your MPG, lower your EGT's, and make the truck run better on the top end. Mine is at 16* right now. Lowered my EGT's a lot. Definately a worth while thing to do.

Eric