Rattle coming from Throttle Arm (on Bosch)

[Toby]

Had a look at this today whilst it was light, didn't have any luck. All the nuts that I could tighten were already tight.

There is half a cm (maybe less) of play up and down where the throttle arm will click up and downward.

The spring can be seen to move as this happens.

Also a little smoke came from the pump area on start up very briefly, may well be down to pure veg perhaps?

But yeah, not really drivable, could anyone advise me on what to do next?

It could be that a few bolts have come loose, and the whole governor cradle assembly is being allowed to move up and down inside the pump.

What you would need to try and do is 'lift' the throttle arm as high as it's going, then try to hold it there while tightening any bolts you can.

Failing that, perhaps you may need to take the top off the pump and double check everything?