Wiper Arm for Lucas Wheel box

I've done a search to try and find out what arm I should be looking for and also contacted Mick at SGT who has been unable to help unfortunately.

I am running a wiper system from SVC with the Lucas 14W wheelbox

db_file_img_319_200x200.jpg


In the searches I've seen people say a Rover arm? Which model, or can anyone point to someone that can sell an arm new? Thanks
 

Brian Stewart
Supporter
Mine is MK2 Triumph 2000 or 2500 (1969-1977). You need the straight one from the drivers side (the passenger side one has a little kink in it.).
 

Dave Collins

Supporter
The TEX arm I ended up using was a W77380 which does have a right hand crank and is 380mm long. I have this fitted to a 18" blade (B12818). This fits the 14.8mm (9/16") Lucas wheelbox shaft which was fitted to MGB etc. I initially had a 13.5mm splined shaft and was advised that the wedge block fitting arms for worn shafts would cope with this as well. I however changed the wheelbox in the end.

I did also get a straight arm as well to the same dimensions but preferred the one with right hand crank.

Dave
 
The TEX arm I ended up using was a W77380 which does have a right hand crank and is 380mm long. I have this fitted to a 18" blade (B12818). This fits the 14.8mm (9/16") Lucas wheelbox shaft which was fitted to MGB etc. I initially had a 13.5mm splined shaft and was advised that the wedge block fitting arms for worn shafts would cope with this as well. I however changed the wheelbox in the end.

I did also get a straight arm as well to the same dimensions but preferred the one with right hand crank.

Dave
I know this post is old as the street, but still i am taking a long shot here as to try to find out how to find a wheelbox with 14,2mm splines (9/16")
I got an push on arm from tex classics, but it is made for a 14,2mm spline, not the 13,5mm splint that seems to be standard today.
Any pointer here as where to look?
 

Dave Collins

Supporter
Daniel I have replied to your PM.

I do not have a record of where I purchased my 9/16" spline wheelbox but there are several companies who sell Lucas wheelboxes if you search on Google (SVC, AES, Holden, Rimmer Bros). Would be worth contacting to see which ones may have the correct spline. I understand they were mainly used on 1950's and 1960's British cars.

Perhaps someone else may know a specific Lucas part number that may assist.

Dave
 
The Lucas catalogs for various years are available online if you search. I believe i posted some links previously. You can then find the appropriate Lucas part number to help with your searches. The wiper arms were available in quite a variety of lengths, bends and finishes.
The wheel boxes were also available with a number of different gear sizes, this will affect the sweep of the individual wiper arms. for example a smaller wheel will give more sweep while a larger wheel will give less sweep. As such it is possible to set up a dual arm set up off the one motor and have different sweeps on each arm.

It is also worth having a look at the control wheels in the motor as these were also available with different offsets/strokes and some even had a reverse park function to them that would pull the arms back downwards to the bottom of the screen in the park position via an eccentric on the drive link that pulls or pushes the shaft a certain direction when going in the opposite direction that it would not normally see during operation.

I had not got around to working out what I was going to use just yet as the Australian design rules specify a certain swept area of the screen. I anticipated that I would have to trial a few different options. I do have two 6WA wiper motors (or were they 6W?). I am trying to add the secondary saturation field (adding a resistor in series with the field coil) to one of them to make it dual speed.


Lucas Master Parts Catalog 400E - 1945-1960 (mgaguru.com)
 
Moss Europe do a huge selection of spares for old British cars

ian
Moss have been contacted, awaiting reply.

The Lucas catalogs for various years are available online if you search. I believe i posted some links previously. You can then find the appropriate Lucas part number to help with your searches. The wiper arms were available in quite a variety of lengths, bends and finishes.
The wheel boxes were also available with a number of different gear sizes, this will affect the sweep of the individual wiper arms. for example a smaller wheel will give more sweep while a larger wheel will give less sweep. As such it is possible to set up a dual arm set up off the one motor and have different sweeps on each arm.

It is also worth having a look at the control wheels in the motor as these were also available with different offsets/strokes and some even had a reverse park function to them that would pull the arms back downwards to the bottom of the screen in the park position via an eccentric on the drive link that pulls or pushes the shaft a certain direction when going in the opposite direction that it would not normally see during operation.

I had not got around to working out what I was going to use just yet as the Australian design rules specify a certain swept area of the screen. I anticipated that I would have to trial a few different options. I do have two 6WA wiper motors (or were they 6W?). I am trying to add the secondary saturation field (adding a resistor in series with the field coil) to one of them to make it dual speed.


Lucas Master Parts Catalog 400E - 1945-1960 (mgaguru.com)
Unfortunately the catalogue doesn't list the size of the spindles, but it is a good way to see what type of wheelboxes there are atleast.
 
Awaiting reply from Moss, all else has fell thru and everyone seems to only be able to supply the 13,5mm splined spindle.
Might have to change wiper arm instead for a wedge lock model.
 
That was just the first Lucas catalog that I could google up. I have seen multiple other ones. So you might have to search for a catalog by year.
at some stage Lucas moved away from the all encompassing and went on to produce catalogs for particular makes of car. Ie Lucas Triumph spare parts catalog and Lucas rover spare parts catalog ect. I cant remember when that was. If you can work out which cars had the larger wheel boxes you might be able to find the appropriate catalog which will then lead to the part number.

good luck.
 

Dave Collins

Supporter
Hi I have had a look through my archive and when I was researching 9/16" wheelboxes I received the following responses:

Tex - "The 14.8mm wheelboxes are commonly fitted to MGB etc effectively the old Lucas 9/16" spindles."

James Paddock - Had a TR7 wheelbox that was 14.8mm spline and was 50mm from wheelbox to tip
They have the following on their site at present for TR7 - James Paddock Limited - Triumph Stag, Spitfire, TR6, TR7, GT6, Vitesse, Herald Parts and Spares Specialists. WHEELBOX LATE 69 ONWARDS(122781)

Still no record of what I bought!

Dave
 
@DC-MXV Dave, does your wheel box have the 8 sided nut on it?
I think the larger ones will have the 8 sided nut as that Triumph one certainly does.
I suspect the smaller shafts have a regular 6 sided nut.
may possibly be one way of telling them apart.

Ryan
 
Thas is exactly how i mounted mine, but i dont have the correct diameter spindle...
Could you get a picture of how you fitted it below the windowframe and still got room to connect the nozzles?
 

Dave Collins

Supporter
Daniel. This is a picture looking up from the driver footwell. You can see the bottom of the wheelbox and the pipe feeding to the washers. I know it was necessary to make the hole in the top of the chassis a bit larger to fit all of these items. Dave

RCR38 Wheelbox.JPG
 
How the hell did you manage to connect the hoses to the spray nozzles for the windshield?
It should be ridicoulusly tight between the wheelbox plate and the window frame where it pokes thru :oops:
 

Dave Collins

Supporter
I am not sure. They were fitted when the car was completed in 2012. I will be seeing the person who did it at the weekend so I will ask. I know they made the hole around the wheelbox larger so perhaps that is why.
 
How the hell did you manage to connect the hoses to the spray nozzles for the windshield?
It should be ridicoulusly tight between the wheelbox plate and the window frame where it pokes thru :oops:

Fit hose to washer spray nozzle, then install nozzle into the scuttle, then install the windshield wiper.
 
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