[ROVERNET - UK] Windscreen Wiper Delay - How Long?

Netspace vmitps at netspace.net.au
Sat Aug 18 23:43:14 BST 2007


Yes the hose splits, I replaced long sections of it.

PVS

----- Original Message ----- 
From: "Brian Humphreys" <brian_humphreys at btconnect.com>
To: <brian.jane at eggconnect.net>; <rovernet at lyris.ccdata.com>
Sent: Sunday, August 19, 2007 8:20 AM
Subject: RE: [ROVERNET - UK] Windscreen Wiper Delay - How Long?


> OK bit more info.
>
> I taped up the sponge end of the delay unit and proved that it wasn't the
> one way rubber valve as the plunger still moved back out with my thumb on
> the vacuum pipe connection.
>
> The diaphragm looked fine held up to the light looking for small tears.
>
> So I squeezed the unit together really hard and tried again with my thumb 
> on
> the vacuum connection. This time it held. It seems that the spring clips
> holding the unit together just weren't strong enough or had weakened over
> time. This was letting air through from one side of the diaphragm to the
> other. I put some packing under the clips, put it together and now it 
> seems
> good. Attaching it to the car and I now have a delay of 5 seconds (well it
> is getting better and I know the rest is not due to the delay unit 
> itself).
>
> Now to track down the steering column end for perhaps a split in the 
> vacuum
> pipe.
>
> Hope this might help others.
>
> Brian.
>
> -----Original Message-----
> From: rovernet-bounces at lyris.ccdata.com
> [mailto:rovernet-bounces at lyris.ccdata.com] On Behalf Of Brian Humphreys
> Sent: 18 August 2007 17:28
> To: rovernet at lyris.ccdata.com
> Subject: RE: [ROVERNET - UK] Windscreen Wiper Delay - How Long?
>
> Thanks, I knew it should be a reasonable value, now I know what I'm aiming
> for.
>
> I've experimented with different amounts of sponge and optimally (when the
> air is being fully expelled rather than compressed because there is too 
> much
> sponge to allow the air to leave) I can eek an extra 1/2 second (big 
> deal).
> I also found that if I put insulation tape all the way round the unit 
> before
> putting on the spring clips I can get another second (wow). So now I'm up 
> to
> 2.5 seconds on max.
>
> Pressing in the plunger and covering the vacuum pipe inlet with my thumb
> does not hold the plunger in - which I believe it should do.
>
> I guess that the only thing left is the one way valve disc underneath the
> sponge.
>
> Does anyone have any good ideas on a diy repair disc?
>
> Brian.
>
> -----Original Message-----
> From: rovernet-bounces at lyris.ccdata.com
> [mailto:rovernet-bounces at lyris.ccdata.com] On Behalf Of Netspace
> Sent: 17 August 2007 23:13
> To: brian.jane at eggconnect.net; rovernet at lyris.ccdata.com
> Subject: Re: [ROVERNET - UK] Windscreen Wiper Delay - How Long?
>
> More like 20 sec on max.
>
> PVS
>
> ----- Original Message -----
> From: "Brian Humphreys" <brian_humphreys at btconnect.com>
> To: <rovernet at lyris.ccdata.com>
> Sent: Saturday, August 18, 2007 7:40 AM
> Subject: [ROVERNET - UK] Windscreen Wiper Delay - How Long?
>
>
>> All,
>>
>> I recently refurbished my wiper delay by replacing the piece of sponge
>> as it had been all but useless for several years. I currently have a
>> delay of about 1 second between wipes with the steering column white
>> dial set to maximum delay.
>>
>> I would like to know if this is the normal delay (it's been so long
>> since it worked properly I've forgotten) or if perhaps:
>> 1. I didn't use enough sponge
>> 2. There is a leak somewhere in the vacuum pipe.
>>
>> What sort of delay are others getting?
>>
>> Many thanks,
>> Brian.
>>
>>
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>>
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>> 16/08/2007
>
>> 1:46 PM
>>
>
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