Rattling above 4k

[3i_gaz]

Right, 172 has a slight rattling noise above 4k. Doesnt effect driveability what so ever just a rattle, sounds a bit top end between cylinder 2 and 3.

Similar to this...

http://www.youtube.com/watch?v=o5CbWBAPk44

any help or people exp[erienced something similar?

​much appreciated

 

[3i_gaz]

nobody?

 

[PP200t]

Check the brace that steadies the alternator to the block. Mine was loose and rattled.

 

[LiamR172]

Hows your engine mounts Gaz?

I had a bad knocking/rattle sound above 4k on mine. Losen the engine mount and shift it forward. Sorted my noise out!

 

[Ol’ Tarby]

Fuel rail guard loose?

 

[3i_gaz]

Fuel rail guard is off, mounts the top one is failrly new and sickaflex filled too, bottom is a fresh poly one, top gearbox mount was new when i got the car november last year.

Alternator bracket has gone as i've mad an aircon delete bracket and pulley for it so thats ruled out. Really strange.