Supercharger rattle/grinding
#1
Supercharger rattle/grinding
hi everyone,
does anyone know what could be causing this rattle/grind sound from my Eaton m45 1.8 mk1? It only happens between 3500-3800rpm with performance not affected at all, thoughts were resignation from touching metal but any loose bits tied back and still happening. It's odd, I took it out the other day and with engine cold did a few pulls and no noise but once warm on comes the grinding again it's so perculiar.
It happens on accelerating and deceleration when going past 3500-3800rpm and at idle if revved to that rpm. If you hold it at that rpm noise stays the same and sounds like it's shredding it apart but been like this for a while now and still pulling the same.
Will check the cat in next couple of days to see if anything loose or rattling down there too.
does anyone know what could be causing this rattle/grind sound from my Eaton m45 1.8 mk1? It only happens between 3500-3800rpm with performance not affected at all, thoughts were resignation from touching metal but any loose bits tied back and still happening. It's odd, I took it out the other day and with engine cold did a few pulls and no noise but once warm on comes the grinding again it's so perculiar.
It happens on accelerating and deceleration when going past 3500-3800rpm and at idle if revved to that rpm. If you hold it at that rpm noise stays the same and sounds like it's shredding it apart but been like this for a while now and still pulling the same.
Will check the cat in next couple of days to see if anything loose or rattling down there too.
#6
get a mate to rev it to where the noise happens.
Then just start poking ****, especially heat shields, with a broomstick until the noise stops.
Noise stops = part that's resonating.
If it's still got the stock exhaust heat shields there's a good chance one's snapped a mount bolt and now vibrates.
Then just start poking ****, especially heat shields, with a broomstick until the noise stops.
Noise stops = part that's resonating.
If it's still got the stock exhaust heat shields there's a good chance one's snapped a mount bolt and now vibrates.
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