wiper motor

wiper motor

Author
Discussion

SL500

Original Poster:

469 posts

265 months

Saturday 4th February 2017
quotequote all
I need to replace the wiper motor on my Cerbera. I had fitted the upgraded one which I found useless as it didn't work as expected, and a very tight fit as the motor is too big for the space. Any way I need a Lucas pt number 60027021 12volt 29watt. Two speed.

Does anyone know of a good supplier please?

Thanks

Paul

ukkid35

6,175 posts

173 months

Monday 6th February 2017
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Follow up question:

Something has happened to my wiper motor, seems like a cog has slipped as the wipers have now parked below the windscreen. I haven't investigated but would like to know whether I am probably in the same position as the OP, or can it be fixed without the likelihood that it will happen again soon?

Byker28i

59,835 posts

217 months

Monday 6th February 2017
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Mine also is getting tired, especially after driving it around last week.

So TVR-Parts list this upgraded wiper motor
http://tvr-parts.com/tvr-parts/part-details/tvr-m0...

Is this the one you had issues with SL500? Was it easy to fit and how much bigger was it? Was it just a case of wouldn't fit in the space or wouldn't fit the mounting bracket etc.

Power lists a replacement which seems to show gearbox and drive cable
http://www.powersperformance.co.uk/store/slug/wipe...

Which leads to my question.
When I replaced the park switch I tried to get the wiper motor out to check it all over but couldn't detach it from the drive. I undid the nut but it didn't seem to come away.

Do you have to remove the wiper motor securing bracket, undo the nut to the drive, then pull out the motor complete with drive cable? How actually does it come out?

SL500

Original Poster:

469 posts

265 months

Monday 6th February 2017
quotequote all
The upgraded motor is far too powerful for the old gearbox and chews the gears up. Plus when you try and fit the motor it is too long for the space and you literally have to jam into into the space as the heater pipes are in the way.

Now I have no wiper motor.

I did speak to the supplier and they said that they have never had a problem in the past.

TVR Power do an exchange however.

Byker28i

59,835 posts

217 months

Monday 6th February 2017
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So is Powers motor the same as the original, ie just about good enough for the job?

The image accompanying Powers part shows the motor, gearbox and drive cable? When the take the motor and gearbox out, do you take the drive cable with it then so you remove everything as shown in powers image?



Edited by Byker28i on Monday 6th February 13:53

GT6k

859 posts

162 months

Monday 6th February 2017
quotequote all
To remove the motor you have to undo the nut to the drive and then remove the cover plate to allow you to unhook the link to the drive cable

Have a look at this to see how it works

https://youtu.be/ctLPnYGIW8c

ukkid35

6,175 posts

173 months

Monday 6th February 2017
quotequote all
GT6k said:
To remove the motor you have to undo the nut to the drive and then remove the cover plate to allow you to unhook the link to the drive cable

Have a look at this to see how it works

https://youtu.be/ctLPnYGIW8c
Thanks Ian that really helps.

Since mine has slipped so that the wipers ended up under the windscreen, does that mean the drive cable has failed. Both wipers are at the same angle so presumably the wheel boxes are OK?

Getting access is proving very difficult indeed as everything is covered in Sikaflex or similar.

Byker28i

59,835 posts

217 months

Tuesday 7th February 2017
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Brilliant - that helps a lot - cheers

SL500

Original Poster:

469 posts

265 months

Tuesday 7th February 2017
quotequote all
I have a second hand one on it's way. Ill rebuild this one then. No more uprated motor though.

You cannot get new anymore

Edited by SL500 on Tuesday 7th February 14:20

350Matt

3,738 posts

279 months

Wednesday 8th February 2017
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According to Alex Judds site alternative cerbera parts

http://www.alexjudd.com/cerbera/parts/


Wiper motor:

MKV Austin Mini but you have to change the gearbox over, not a difficult job. The mini has a 110 degree sweep and the Cerbera 170
or : www.s-v-c.co.uk/ look under wipers they appear not only to do the relevant motor, but spare cables wheel boxes etc.
Updated: I have discovered (through trial and error) that the cerbera windscreen wiper motor is in fact a jaguar XJ6/12 29watt unit, Lucas part no. 60027021A, it fits straight on, gearbox and all.

Adrian@

4,309 posts

282 months

Thursday 9th February 2017
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I build these motors, I have replaced gears on the 'wiper motor upgrade' (which is a magnet housing/brush set and armature with bearings, rather than a 'motor') four in the last month, and more than 20+ gears in total (I stopped counting), there are several issues with this. First the motor can be built to work/rotate backwards, leaving the meshing of the gearbox thrust to be incorrect and thus the ramp for the park switch to also be in reverse (damaging the park switch), but more importantly is the torque start up, this is beyond what the gear was designed for and I believe that the gear is at it's limit already and although I can change these, I give no warranty on the new gear once fitted to the upgrade. Another issue is that buying into cheap wiper racks (not the heavy duty TVR version) is causing the first 2" of the rack to corrupt at the ferrule (as it connects to the tubes) which is related to the torque start up.
Over the course of the last 10 years the only time the std motor gears have needed to be replaced have been heat related/melting through the armature when a motor has seized.
IMHO of course.
A@

Edited by Adrian@ on Thursday 9th February 11:13

ukkid35

6,175 posts

173 months

Thursday 9th February 2017
quotequote all
Adrian@ said:
This will be my last post on PH, enjoy yourselves.
Adrian@
Glad you changed your mind, it's info like that which makes owning these cars far less traumatic than it could be. Thanks.

Adrian@

4,309 posts

282 months

Thursday 9th February 2017
quotequote all
ukkid35 said:
Glad you changed your mind, it's info like that which makes owning these cars far less traumatic than it could be. Thanks.
Sadly, I just got it dictated out AT me, and told to post it. BTW here is the gear. Julie@


Edited by Adrian@ on Thursday 9th February 15:02

Byker28i

59,835 posts

217 months

Wednesday 3rd May 2017
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OK so update on this. It's in for MOT and new wiper motor. I'm told the upgraded one doesn't fit and will chafe through the hard fuel lines. This is due to an adaptor plate which makes the unit 14mm too big to fit the space.

So it'll be back to an original if I can find a new one

CerbWill

670 posts

118 months

Wednesday 3rd May 2017
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Byker, have you disassembled the wiper mechanism and checked the lubrication? When I took mine to bits I found all the grease (probably original) in the wiper boxes and gearbox was hard and dried out. Reassembling them with fresh grease did wonders for the performance, and a coating of RainX on the windscreen helps too.

Byker28i

59,835 posts

217 months

Wednesday 3rd May 2017
quotequote all
Its in at an Indy's for MOT, thought I'd get them to swap the motor while it was there, and it was a pain when I did the park switch.
They are the ones having issues, just means I haven't my car back frown

DCerebrate

341 posts

110 months

Thursday 23rd November 2017
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Within 5 miles of clutch repair - wiper motor failed. Followed this thread with interest. But had already ordered TVR Parts upgraded motor. Installed - crunching noise from mechanism. Although no problem with size / installation. Stripped down further - failed wheelboxes, dry / inadequate lubrication. Two new wheelboxes and a cable later, all is good. Good strong motor, better park position. Still living in trepidation if motor proves too strong for the mechanism. Now, off to track down the lumpy idle that just appeared................ Also a happy day - realised that I have covered 10000 memorable miles in three years of ownership...

Byker28i

59,835 posts

217 months

Friday 24th November 2017
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I ended up getting mine sent away for a full rebuild by the man who fixes them for everyone.
Works better than ever now.

Luckyone

1,056 posts

232 months

Wednesday 29th November 2017
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Some 10 years ago I got a new mini wiper motor, stripped that & the Cerb one then rebuild the cerbs using as many of the new bits from the mini one as I could. It wasn't actually that much as I recal. I ended up taking the windings off the mini motor & winding them back on the cerb armature! I'm fairly sure I was able to use the mini motor body so got new magnets too. I think a few other little bits fitted. I found there was a lot of resistance at certain in parts too, it all moved much more easily when I was done.
I'm sure I must have posted something about it on here years ago if more details are required.
I was pleasantly surprised it worked when I got it back together! It worked much better after & has kept working with no maintenance at all ever since.
The weather was horrible on the way to the last TVRCC trackday & they were working perfectly, though of course I've jinxed them now...

Luckyone

1,056 posts

232 months

Wednesday 29th November 2017
quotequote all
Some 10 years ago I got a new mini wiper motor, stripped that & the Cerb one then rebuild the cerbs using as many of the new bits from the mini one as I could. It wasn't actually that much as I recal. I ended up taking the windings off the mini motor & winding them back on the cerb armature! I'm fairly sure I was able to use the mini motor body so got new magnets too. I think a few other little bits fitted. I found there was a lot of resistance at certain in parts too, it all moved much more easily when I was done.
I'm sure I must have posted something about it on here years ago if more details are required.
I was pleasantly surprised it worked when I got it back together! It worked much better after & has kept working with no maintenance at all ever since.
The weather was horrible on the way to the last TVRCC trackday & they were working perfectly, though of course I've jinxed them now...