Revitalised Wiper Delay

rp61973 said:
Excellent step by step rebuild!

I scoured the net for some replacement bobbins and found something identical but with metric nuts instead.

Can't remember where I got them as it was several years ago but they are out there and they were identical to the OEM bobbins.

Not sure if these are similar?


http://www.advantage-motorsport.co.uk/j ... tAod9wMAfA
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Are these bobbins suitable for the V8 wiper clamp? They look as though they could do the job.
 
Is the vacuum tube from the delay unit to the adjuster on the column a red tube by any chance?
 
I think mine is black but I have a vague recollection of having a car with a redish one and you can buy tubing in that size in a maroon colour fairly easily, its used on Pianolas and stuff so perhaps they used whatever they could find. Then again the factory aircon is all black tubing..
It should be the same colour at both ends...I recall it becomes very annoying when you try to take the steering column off and it wants to stay attached....
 
This is going against the grain here, but I ask if anyone has used the solid state wiper delay unit - either the OEM version or a latter aftermarket version.
I have persevered for years without a delay unit, but the time / effort to rebuild the existing delay unit and the thought that it may be short lived (in my case) is pushing me to look at a solid state versions.

But I do recognise the effort and time taken to describe the strip-down approach of the original unit.
Thanks
 
eggbert68b said:
This is going against the grain here, but I ask if anyone has used the solid state wiper delay unit - either the OEM version or a latter aftermarket version.
I have persevered for years without a delay unit, but the time / effort to rebuild the existing delay unit and the thought that it may be short lived (in my case) is pushing me to look at a solid state versions.

But I do recognise the effort and time taken to describe the strip-down approach of the original unit.
Thanks
Click to expand...

I'd be interested in this too - my delay wipe moves the wipers halfway (to the vertical position) and then stops, and they don't move again, I have to flip them to normal and then they resume.
 
Thinking about it, I don't think they park properly either - if I turn them off they just stop where they are, so I have to flip the switch off when the wipers are in the 'rest' position.
 
ComputerMan said:
Thinking about it, I don't think they park properly either - if I turn them off they just stop where they are, so I have to flip the switch off when the wipers are in the 'rest' position.
Click to expand...

It sounds like the only problem you have is with the self parking switch. On slow and fast settings the self parking switch is unused but during delay, as soon as BOTH the self parking switch and the delay governor have changed state, you are relying on the self parking switch to supply power. If it does not then your wipers will stop midway on intermittent wipe, Also the self parking function will fail, both of which you say are happening.
 
So... Firstly check and clean the connections. Actually, that's the second thing - first job is to find it! (Not been out to look yet!). Easy to source a replacement if required?
 
A quick Google for the switch turns up lots of 3500 / V8 ones, but nothing for a 2000, or at least the 2000 isn't mentioned in any of the details... Are they different? Can't imagine a different mechanism would be used for the four pots but maybe... I'll keep looking.
 
ComputerMan said:
So... Firstly check and clean the connections. Actually, that's the second thing - first job is to find it! (Not been out to look yet!). Easy to source a replacement if required?
Click to expand...
88D80DE0-5F0F-40CF-A3A9-319BC3C797B6.jpeg
The self parking, or limit switch, is attached to the main body of the wiper mechanism, and is operated by the large gear internally. As with the rest of my post these details are for my own vehicle, a 3500S, and may differ from your own vehicle.
 
The connector block underneath (pic above) is retained by a screw inside the casing, so you need to remove the cover and the big gear wheel to access the screw. iiRC there is a lump on the underside of the gear wheel that operates a small plastic nub that is part of the connector block, and enables the selfpark.
 
ComputerMan said:
And I bet that can't be done without taking it out of the car...
Click to expand...

The screws (arrowed red) hold the switch onto the back of the housing. The 'bridge' on the plastic wheel, which when fitted faces the back of the housing, operates the self park switch (arrowed black). When you turn the wipers off, the motor stays live on a separate circuit until this bridge pushes the switch in - if that makes sense?

Two common problems is somehow losing the live feed to this circuit (Brown and Purple on my car) or the screws working themselves loose so the switch is just pushed away and not operated.

Try wiggling the switch to see if it's loose. I wouldn't buy a new one until you have checked this.

self park sm.jpg
 
Isn't it great having people like Quattro on this webpage?
So many wise sages to draw on !!
Makes me want to pull my wiper mechanism apart to see why it still runs after fifty years of service.
I bet the grease in mine will be hard as rock.
 
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