windscreen wipers

[QuiteQuietCerb]

stopped working the other day, stuck in the middle of the screen, tried to squirt water and get them unstuck but didnt work. anyone knows what to check and where? btw both steering wheel buttons dont work, so i think unlikely to be the culprits?

Thanks

[mike_e]

Assuming its not mechanical I'd first check the Fuse, Motor Connector, Park Switch and worst case scenario, the wiper control box in the footwell.

[sonnylad]

Press the buttons and listen for noise coming from motor, if it is running then may be the gear wheel is knackered. if so then Adrian venn is your only hope

[QuiteQuietCerb]

Thanks guys do u know where the connector is and park switch, thinking of pulling the buttons out and checking if power is getting there but not sure how to remove them

[gruffalo]

Park switch is on the side of the motor under the F2 panel on the passenger sidE.

I seem to remember that you need to remove them expansion bottle and develop multiple wrists in order to get at it but it is doable.

[mike_e]

It's very unlikely you'd have both buttons pack up simultaneously unless its the ribbon cable connecting them, but that wouldn't account for the wipers stopping mid screen, they would still return to the park position. I'd look elsewhere, sounds like either major mechanical failure or much more likely electrical. Check the state of the Fuse and the connections to the motor and the control box first.

[Dire Grammes]

Is there a faint burning smell in the area where the wiper motor is fitted?

[Byker28i]

Don't go for the uprated motor from TVR parts - it doesn't fit. Go for the rebuild, mine works brilliantly afterwards.

[QuiteQuietCerb]

Thanks all where is the motor and box for this?

[mike_e]

The motor and gears are under the removable panel in front of the screen. Motor is located beside the the coolant reservoir. The wipers are a really old design used in minis and other old Austin Morris's etc. It features a wire rack that runs in tubes between the motor and the wiper boxes. One end is attached to a crank arm inside the gearbox which is driven by a worm gear on the motor. The wiper boxes have cogs that engage in the flexible wire rack so mechanically it's very straightforward. The motor is activated via the control box which in turn is activated by the buttons. Once the wipers start to move the park switch closes and this provides power to the motor until the crank has done a full revolution whereupon a cam on the crank opens the park switch and will stop the motor if the wipers are turned off. Either your rack has busted/jammed or there's an issue with power getting to the motor.

[QuiteQuietCerb]

Thank you, I ll get this checked when I get the time, for now a bit of rainex and speed will do the job 😁

[PhilH42]

I've noticed mine only works on fast....where should I be looking first?