series 2 wiper mechanism

Paul 012 · Post by **Paul 012** » Fri Feb 08, 2013 8:47 pm

My drivers side (LHD) wiper is inoperative because the spline is no longer moving with the mechanism, therefore wiper does not sweep.
1. Is there a fix out there?
2. Do I have to replace the whole backplate and wheelbox assembly?
3. If so, does this require a full tear down of the dash, etc to accomplish?

The answer is out there and most probably not the one I want to read!!
Thanks in advance from snowy Toronto
Paul

Post by **1954Etype** » Fri Feb 08, 2013 8:52 pm

Paul you could try drilling and pinning the wiper arm to the spline.

Paul 012 · Post by **Paul 012** » Fri Feb 08, 2013 9:00 pm

adding this idea to the list. Will see how that goes and cheers for the suggestion

chrisvine · Post by **chrisvine** » Sat Feb 09, 2013 9:23 am

Paul,

If you managed to find a replacement wiper splined drive, you could probably avoid taking out the whole rack and just undo the outer splined drive bracket (two nuts) and leave the rest in-situ.

However it would mean removing the dashtop and dash facia.

Chris

Paul 012 · Post by **Paul 012** » Sat Feb 09, 2013 9:01 pm

Have not located a new or used slined drive. Have found full replacement but not just that part. Any contacts for this piece yopu can suggest?
Paul

christopher storey · Post by **christopher storey** » Sun Feb 10, 2013 8:44 am

Paul - what Angus suggested was the right idea but applied to the wrong part. Assuming that what you meant was that the wiper spindle is turning but that the splined hub is not, you need to drill the splined hub and the spindle and put a small pin in . Although i have not had to do it on an E type , I have done this with success on a similar problem with my Mark 2

PeterCrespin · Post by **PeterCrespin** » Sun Feb 10, 2013 5:42 pm

Paul 012 wrote:Have not located a new or used slined drive. Have found full replacement but not just that part. Any contacts for this piece yopu can suggest?
Paul

If I'm understanding you correctly, your wheelbox is dud. I think that's what those three parts of the rack are called and they are common to very many cars of the era. The wiper racks varied between models more in the drive configuration and measurements between wheelboxes etc than in the fundamentals. I think you can find the occasional wheelbox sold on eBay NOS for Minis and MGs and other Sixties cars and by studying the pictures you could probably work out what you need. Someone will sell you less than a complete rack if every other part is good.

christopher storey · Post by **christopher storey** » Sun Feb 10, 2013 6:10 pm

Peter : the wheelboxes themselves do not often fail in my experience, and if they do because of wear then you are usually b*ggered because they are just a rack and pinion type arrangement and the rack is the weaker part. The more usual failure mode is that the splined hub, which is only a sort of shrink fit on the pinion shaft, comes loose, and whilst this can be got round with a complete new wheelbox, there are different sorts and getting the correct one is not always straightforward. Hence the pinning arrangement is a reasonable fix . It does, of course, require the wheelbox to be got out which is the worst part of the job. Whilst on the subject, another way in which wheelboxes fail to proceed is if the two setscrews which hold the front and back halves of the box together come loose. This then allows the rack and pinion to slip out of engagement with each other. If this has happened it is the work of only a few minutes to push the rack back into engagement and resecure the screws

chrisvine · Post by **chrisvine** » Sun Feb 10, 2013 10:09 pm

Just a thought but could the snap-lock connector have popped off the wheelhouse ball joint if the wiper resistance was too high?

I've just refurbished my S2 wiper rack as best I could as some of the wiper arm splines are damaged (I assume from the removal of the arms over the years) and so have attached photo for Paul's reference:

As far as I can see the possible failure points might be:
1) Worn wiper arm splines - so the suggested pinning would be the easiest solution. I assume this could be checked by removing the wiper arm to see if the spines are worn and the shaft is still rotating?
2) Worn wheelbox shaft spline no longer engaging with the 'ball joint' bracket
3) The drive rod snap-lock conector has disengaged from the ball joint

If 1) is not the cause then I'd assume you'd have to remove the dashtop to invesigate further

christopher storey · Post by **christopher storey** » Mon Feb 11, 2013 11:12 am

Ooh dear, my mistake _ I was thinking of the saloon type wheelboxes which are completely different

PeterCrespin · Post by **PeterCrespin** » Mon Feb 11, 2013 1:35 pm

chrisvine wrote: 2) Worn wheelbox shaft spline no longer engaging with the 'ball joint' bracket

This is the failure I've seen. If you look at the photos, you can see the diameter of the splined shaft in the end of the lever arm is quite small - something like 1/4" or slightly over. It's a steel part but I think racks get manhandled and the levers twisted on the splines if people tread on a rack in the workshop or damaged forcing it in or out of the bulkhead or pushing the ball joints on.

Pete

Paul 012 · Post by **Paul 012** » Mon Feb 11, 2013 7:51 pm

Looks like I need to remove the parts to get the splined hub pinned to the pinion shaft; shame about that but if I remove it, maybe I can find a repalcement part.
I will attempt the pin method first with the wheelbox in situ but think this may be a difficult move by hand drill. I can see removal in the forecast!

All comments and advise has been great and I thank you all once again.
Paul

Paul 012 · Post by **Paul 012** » Tue Feb 19, 2013 4:12 pm

Have located a new mechanism in Waashington so will attempt the full removal.
Should keep me occupied for a bit while we await the warmer weather.

Paul 012 · Post by **Paul 012** » Mon Apr 01, 2013 4:23 pm

Well, I finally got time to remove the wiper mechanism (away on a mid winter regatta in Sarasota sailing Albacore dinghy). It was actually quite an easy process. Remove motor. Undo the two nuts on the outer bezels and slide the shafts back into the car (carefully encourage with rubber mallet). Move to far right and extract through the centre opening by the fuses.
I have pinned the spline to the shaft (replacement has not arrived) just in case I need to reuse this part. Looks OK so far and will cleaned up and greased the movements which were very stiff.

BUT... the wiper motor is not working so looks like I need to rebuild that. Bushes are shot and wiring looks very burned.
Suggestions?
Paul

chrisvine · Post by **chrisvine** » Mon Apr 01, 2013 5:05 pm

Paul,

Steve Hunt in the UK repairs these units and may have the necessary spares to do the job. He's often sells reconditioned units on eBay.

The motors aren't that difficult to repair and well within the scope of DIY. For the brushes make sure you're not sold the brushes for a 14W motor. They look similar but don't fit.

Also the parking switches are fairly scarce.

Chris

Paul 012 · Post by **Paul 012** » Mon Apr 01, 2013 5:50 pm

Any Canadian or US suppliers? SNG USA would carry I suppose
Good pointer not to loose the park
Paul

PeterCrespin · Post by **PeterCrespin** » Mon Apr 01, 2013 7:04 pm

You haven't said if it's a two-wiper 2+2 rack, as I recall?

Paul 012 · Post by **Paul 012** » Mon Apr 01, 2013 8:04 pm

2+2 with a two wiper mechanism.
really happy it came out easily but unlike the 3 arm system, you cannot remove the spindles as they are crimped on.

Paul 012 · Post by **Paul 012** » Mon Apr 08, 2013 10:00 pm

...and motor now working, just required better cleaning of magnet surfaces and away iut went. Will most probably have to do bushes later but happy camper right now.

Link:
BBcode:
HTML:
	Hide post links

Link:
BBcode:
HTML:
	Hide post links

Link:
BBcode:
HTML:
	Hide post links

Link:
BBcode:
HTML:
	Hide post links

Link:
BBcode:
HTML:
	Hide post links

The 'E' Type Forum

series 2 wiper mechanism

#1 series 2 wiper mechanism

#2 Re: series 2 wiper mechanism

#3

#4

#5

#6

#7

#8

#9

#10

#11

#12

#13 wiper mech

#14 wiper mechanism

#15

#16

#17

#18

#19