coventryslk
Senior Member
- Joined
- Feb 3, 2009
- Messages
- 1,439
- Reaction score
- 87
- Age
- 42
- Location
- Coventry
- Your Mercedes
- W204 CDI Sport
Afternoon
Bought a tidy boxster 986 last year very very cheap but decent with a nominal sum money left to me by a relative.
A couple of weeks ago I changed the 3 drive belt pulleys for new.... went for a short drive and a massive rumble after the initial satisfaction of a nice smooth sounding engine.
Removed and returned them as the bearings looked cheapo compared to the original FAG one in the old pulleys.
I then went a purchased 3 new FAG bearings and had the old ones pressed out and new ones into the old pulleys (felt great at this time as with refund of other pulleys this route cost £13).
Refitted, threadlock, torqued up bolts (refitted old drive belt.... as will pick one up soon).
Again, car sounded nice. Went for a drive on Friday lunchtime and on the way back home the rumble began again.... Time for strip down number 3.
Would anyone on here have any knowledge or guidance of what is going wrong? The tensioner pulley is on a lever arm from the self tensioning mechanism and could this be over tensioning the belt? Or is it as simple as the old belt causing this issue above?
I'll order 3 new bearings tomorrow and refit when I figure out whats going wrong
Bought a tidy boxster 986 last year very very cheap but decent with a nominal sum money left to me by a relative.
A couple of weeks ago I changed the 3 drive belt pulleys for new.... went for a short drive and a massive rumble after the initial satisfaction of a nice smooth sounding engine.
Removed and returned them as the bearings looked cheapo compared to the original FAG one in the old pulleys.
I then went a purchased 3 new FAG bearings and had the old ones pressed out and new ones into the old pulleys (felt great at this time as with refund of other pulleys this route cost £13).
Refitted, threadlock, torqued up bolts (refitted old drive belt.... as will pick one up soon).
Again, car sounded nice. Went for a drive on Friday lunchtime and on the way back home the rumble began again.... Time for strip down number 3.
Would anyone on here have any knowledge or guidance of what is going wrong? The tensioner pulley is on a lever arm from the self tensioning mechanism and could this be over tensioning the belt? Or is it as simple as the old belt causing this issue above?
I'll order 3 new bearings tomorrow and refit when I figure out whats going wrong