Looking at a 96 accord with 140k, 2.7L v6. at first startup it sounded like a tapping comming from the engine, almost like a chugging sound....not really loud, but noticeable, then out of no where it stopped. then it latter started again.

i was told this could possibly be the timing belt, and that it more then likely was.

what do you guys think?

also, if it is the timing belt, how difficult are they to install? i havn't worked on a honda engine, but i know my way around GM engines doing things like rocker installs, heads, intake manifolds and such. something that can be done in a garage? or honda dealer only kind of thing? i know the difficutly depends on the car, thats why i ask.

any help appreciated.