Wipers query

[Edmason]

I've got a late Mk 2 car, and I think I should have 2 speed wipers, with an intermittent setting. Is that right? What I seem to have is just 2 positions on the stalk: On & Off, and they don't self park. I've read that the inside of the stalk/switch deteriorates, sticks and even breaks up, so I wonder if that's what's happened. At the wiper motor there are 3 wires, Red/green, Yellow/green & Blue/green. Does that seem right? My Manual shows 4 plus earth Wipers wiring.jpg

[mole42]

That image doesn’t give much information, try taking a picture from a little further away! I guess it’s the wires between the wiper motor and connector block, there should be 5 wires! Can you tell us any model numbers from the top of the gear casing? It may be a motor from another car entirely. AFAIK the late Mk2 cars had two speeds and pull-to-wipe-once. Intermittent was early cars. Self-park should work on all Stags!

There’s useful information in the Technical Section.

[Chris01573]

The three wires going into the motor indicate it will have three brushes. This would mean with the correct wiring it should give two speed. The park function not working can be down to a lever inside the housing breaking away or possibly a bad park switch.

[DJT]

Mk1 Stags had two speeds and a flick wipe. From LD20001 they had two speeds plus intermittent. Intermittent is operated by pulling the switch towards you from the Off position.

[MandM]

You could just try adjusting the park switch as it may not quite be making, slide it along slightly on it's slots

IMG-20220707-WA0006.jpg 20220508_153519.jpg This photo shows the 3 brushes

[jbuckl]

There was another thread recently about wipers and switches. Think it was wiper delay.
contained details about the new stalks with incorrect wiring.

https://socforum.com/forum/forum/stag-owners-club/soc-forum/845451-wiper-delay

[sujitroy]

I have a Mk1 with park issues, I have a few video's on what I had to do to fix my issue.
https://youtu.be/BlvqC-Au7x0 and https://youtu.be/ZLLZV7Wn4PE

Sujit

[Edmason]

I planned to take the wiper stalk off today to see if I could fix it. Spent ages having removed the plastic shrouds trying to remove the bolt that holds the column assembly to the dash (same bolt that alters column rake) so I could disconnect and withdraw the wiring harness, but couldn't get it out. It seems somehow to be captive. Tried tapping it with a soft mallet, and unscrewing it (but it won't turn). Eventually as I couldn't get the stalk off I decided to do what I could with it in-situ, so I flooded it with contact cleaner, and then with silicone spray, and what-do-you-know I suddenly have 2 speed self parking wipers. Only the intermittent function doesn't work, but I can live with that. I'm puzzled though about how to withdraw the column clamp bolt if I need to in future. Any suggestions please?

[DJT]

If you look at the clamp, you will see a small hole on each arm. In one of them you will find a roll pin. Drift this out and you can withdraw the bolt.

IMG_0219.jpg

[Edmason]

Thanks.

[jbuckl]

The captive thread inserts in the cowel can let go.

Seems as if they have done so sorry to say.

Imho the threads & bolts for the cowel have to be treated with kid gloves.

new moulded Parts are nla; so take extra care.

last good items I got were from quiller triumph

[Philip Wardle]

Imho the threads & bolts for the cowel have to be treated with kid gloves.

I found that the thread inserts in the cowel have quite a tight tolerance with the screws. Some screws offered by specialists are frankly not top quality, and although they may have the correct threads they will not necessarily mate with the inserts without undue force, which may account for inserts letting go. I resisted the tempatation to use force and bought better quality stainless steel screws, and this solved the problrem.

Edited to add info on the roll pin as posted earlier in the year:

This appears to be a safety back-up to prevent the clamp bolt (155646) falling out if the nuts on the end fall off.

Imperial size roll pins are available but I couldn't find one with the correct length. However, the 3mm x 18mm roll pin from Westfield Fasteners (item WF70944) is perfect for the purpose, a sachet of 15 costs £1.86 (price correct on 12 Jun 2023). I now have enough roll pins to renovate another 14 steering columns.

[richardthestag]

You could just try adjusting the park switch as it may not quite be making, slide it along slightly on it's slots

IMG-20220707-WA0006.jpg 20220508_153519.jpg This photo shows the 3 brushes

the photo that shows 3 brushes would not allow for 2 speed operation, both speed settings would run at the same speed.

The middle brush should be half the width such that it only contacts one pole at the time and gives half speed, the full width brush will cover 2 poles on he motor and give full speed.

Here is a new cheapo nasty brush plate to show what I mean

s-l1600.jpg

You can replace the brushes in your existing motor but you would need to file a stop into one of them

[MandM]

That is a half size brush, if you blow it up you will see the step, this photo was take when I pulled an old stag motor apart, the left hand brush was repaired badly by a PO and would not move correctly as had been soldered.