Nc30 odd engine noise

aky141 · Post by **aky141** » Thu Mar 10, 2016 7:42 am

hi all, my brother and I recently rebuilt my nc30 finally have it back to working order, now tos making a weird noise at around 1000-1800 rpm, my brother reckons it sounds like a chain rattle noise, and i was thinking well the only chain i can think of thats in the engine is the oil pump one, any chance it could of stretched due to the size and now its to lose?, or is there a tensioner in there somewhere?
thanks i advance

richyrd5 · Post by **richyrd5** » Thu Mar 10, 2016 9:28 am

Check clutch..could be basket nut loose....the plates could be rattling...tends to happen at low/idle revs...never heard of oil pump chain rattling but is possible I guess...

aky141 · Post by **aky141** » Thu Mar 10, 2016 9:37 am

my oil pump chains loose as a goose at the moment, but i shall be purchasing the tool to take off the clutch shortly

Post by **Neosophist** » Thu Mar 10, 2016 10:38 am

aky141 wrote:my oil pump chains loose as a goose at the moment, but i shall be purchasing the tool to take off the clutch shortly

oil pump chains are always super loose on the 30, i wonder how they stay on sometimes.

does it make the noise when clutch is pulled in?

could be somethign daft too like an exhaust header rattling, had a weird buzzing noise that was a loose clamp before.

Post by **Dynamohum** » Thu Mar 10, 2016 10:39 am

The oil pump chain doesn't run under a great tension there is a bit of slack on any I've seen there's no tensioner as such the main thing is its running on both sprockets without slack as richyrd5 said check the clutch basket for wear movement etc.

Nc30 odd engine noise

Nc30 odd engine noise

Re: Nc30 odd engine noise

Re: Nc30 odd engine noise

Re: Nc30 odd engine noise

Re: Nc30 odd engine noise