compensater

[masha]

when out an about this evening my t/c 1450 was making very strange noises when shutting off the throttle ,a very queer whiring noise was coming from the what sounded like the front end of engine and was even worse when shutting off going down hill can my compensater be on its way out ,any ideas please

[ACE]

Check to see if you are still getting a charge. More than likely the stator breaking up.

[banquo]

Any vibration? Compensator coming loose or springs breaking up likely to cause serious vibration as well as noise I would guess. Only takes a few minutes to drain and pull the outer primary off, so suggest you do that first. Check the condition of the primary chain tensioner, and the chain tension itself. Also look for bits of metal lying around in there. Someone complaine dof losing teeth from the starter ring recently, so check starter pinion and starter ring gear.
If primary looks OK, and no sign of loose or damaged comp sprocket, you could check the cam chain tensioner shoes (see tech tips).

Before pulling anything, you could try the old screwdriver stethescope, to see if you can tell where the noise is from. Get long, sturdy screwdriver. Press handle against ear, and hold tip against various parts of motor to hear clearly what noise comes from where.

[masha]

many thanks for the replies , i had primary off last year and had to replace the windings cover as some of the bloody magnets had come unbonded from the case they sit in ,i just hope its not that again or even worse as someone suggests the windings or its more nights of beanz on toast to pay for it i know for deffo banquo its not cam chain adj as i did them last year when i had it all in bits even replaced roller bearings whilst i was in there due to them being highlighted on here and harley hog showed me a easy way of replacing them ,ahh well back to stripping it down again

[banquo]

Good luck!

[masha]

still not stripped it down yet ,but brains been ticking away looking for a cause could it be roller bearing assembly worn on compensater side of engine case ,as i had replaced main bearing on the other side when i did cams and adjuster shoes last year its all puzzling any one replaced this bearing assembly is it a total strip of heads and barrels just checked out the price of bits an its £108

[banquo]

You haven't said if you can hear it when you run the motor at standstill; if you hear nothing when it's stopped, and it only happens when you're moving (and gets worse on over-run), that suggests a transmission issue, rather than an engine issue. It's not an '06 with an inner primary bearing failure is it?