when to rebuild your 2.5

[rastadr]

as i am switching from a reliable rock solid predictable 300x to a 280 i'd like to know when i need to start considering rebuilding it. do you moniter compression or is it hours? does the nicacil wear off? thanks

[Capt.Insane-o]

Given rule is 100 to 125 hours. Depending on how hard it is rode.

[patchesII]

A leakdown tester is the best way to tell

[WATERWINGS]

Given rule is 100 to 125 hours. Depending on how hard it is rode.

Hell.....that would have me rebuilding at least TWICE every year......

[Jay Smith]

Leakdown % 8 or more , time to come down...