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Lucas Washer Bottle motor salvage


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Hi folks

I thought I'd spend an afternoon trying to sort the original LUCAS waster motor and bottle. I'd planned to simply fit a new motor to the top of the bottle as the original was just a pile of rust when I split the case but the new one looked naff and I wanted to keep it looking original if possible. Its a squeeze and took a fair bit of fiddling but from the outside it looks original and works well. Just need to sneak the washer bottle into the dish washer which makes a good parts washer just don't blame mw if you get caught! 

The plastic Motor case needed filling down to allow the screw heads to sit lower and the motor/wiring was all sealed in silicone

 

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Edited by PodOne
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Well done - an elegant solution.

Peter W

I think it is the same trick the re-makers of the new glass bottled Lucas Screen Jet system for the sidescreen cars uses.  Originally the pump, submerged in the bottle, was driven by a motor, fitted in the lid.  The drive from motor to pump was via a shaft in a vertical brass tube.

https://www.sngbarratt.com/uk/#!/English/parts/5443aa9a-9e8b-47d1-b412-4ef0c331fcf3

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Hi

Almost at the same point.

V weak original motor but don't like the look of the new one i bought. As Gareth i was thinking along these lines but i'll now def be giving it a go.

Cheers  Keith

 

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Well done, I also dislike the available replacements, so was really chuffed when I found mine to be working, downside I had to replace the bottle due to a stress crack. 

Replacement bottle fits very well and cap also secures tight. But the bottle walls are thinner than the original. 

Edited by Mark69
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  • 2 weeks later...
4 hours ago, AarhusTr6 said:

Hi

Did the motors all have covers?

Rich

 

No, the black cover was a carryover from the TR5 for the early CP TR6's, later CP cars and all post-73 CR TR6's were fitted with the exposed motor similar to the donor used in the conversion above.

I'm sure Derek Graham will be along and can advised of the change over point.

Cheers, Andrew

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  • 1 year later...

Thought I'd update: finally got round to looking at this.

The original motor was still fitted to my washer bottle but another washer motor was installed in the engine bay above the bottle.

I wanted to dismantle the original motor as I was sure it would probably work with some clean up etc, but the screw on top wasn't very good and I couldn't get it undone.

Fast forward a great deal of time, I decided to give it another go, brought the bottle indoors and found a different set of screw drivers and managed to slightly tighten the screw and then very slowly undone it. Two smaller screws underneath (one snapped) it came apart. 

Cover now off and I can see some corrosion on the steel connected to the magnet, and the rotor didn't want to move freely, but the windings looked good and the commutator was a bit dull but ok and plenty of meat on the brushes. First i dismantled it and realised the metal coming off the magnet was too tight on the rotor, so gently tweaked it to open it slightly, now the rotor turns! So I cleaned all the connections between the brushes and the connectors on the outside and put it back together, now it turns with power. I reassembled the washer bottle and tested it and sure enough it can push water through the jets.

Now the plan is to treat the rust inside, add some grease to the rotor shaft and polish the commutator up a bit and find a replacement screw. Oh and clean up the housing a bit. 

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Gareth

Edited by Mk2 Chopper
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39 minutes ago, BlueTR3A-5EKT said:

Nice screwdriver.  My preferred tool with bits in the handle.

You will need a filler cap too  pt no  GWW957  under a fiver from most specialists.

 

Peter W

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Brilliant, i was literally just looking this up when your post came through on email! I think they used some bottle top before. Yes I've had that Snapon screw driver for many years and it's still going strong.

Also do you know where I could get the strap that hold's the bottle without buying the whole bracket?

Edited by Mk2 Chopper
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Did someone mention putting the plastic bottle and other bits in the domestic dish washer.  Same technique to refresh plastic lamp lenses.

Ercol also do beige 3/4” wide rubber straps for upholstery.

Peter W

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Another update: 

I cleaned the bottle as best a I could but it wasn't great, but I also found a crack in it. 

So I went to price up a replacement and that's when I discovered I had the early bottle (from a TR5/250), and from CP 50001, according to the supplier's, on it was the square bottle - see Derek's correction on that below. So pricing up a new early bottle and filler cap came to around £27. The square bottle that doesn't need the extra filler cap and new mounting bracket with new rubber that i need was about £28, so it was a no brainer to get the correct square bottle with new bracket and sort it all out in one go. 

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Edited by Mk2 Chopper
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Well done on fixing the washer bottle motor looks like I should do the same with a non working spare that I have lurking in the garage.  Incidentally the squared off bottle is correct for all TR6, maybe a couple of the early press TR6 had an oval one carried over from the TR5/250 but it was only ever the squared off one that was listed in the parts books. See attached factory under bonnet image of CC27025L showing a squared off bottle, this TR6 was built in early December 1968.

Derek

76658 CC27025L.jpg

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Thanks for the correction there Derek, always good to brush up on the historical facts. 

I think the suppliers are a little more loose with the dates things changed, implying the '69 model year carried over the TR5 bottle. 

Definitely have a go on your motor, these things are pretty robust by the looks of things and pretty simple. 

Gareth

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  • 2 months later...

Sorry to resurrect an old topic. I was refurbishing and cleaning the washer bottle motor Lucas 5SJ. The brushes on the washer bottle fell off on disassembly. I re-soldered them but it doesn't look a very robust fix although the motor does run and the assembly pumps water. I have seen second hand motors on eBay and may go down that route. I may also resort to the solution above (which is probably the better option). Despite scouring the internet, I have failed to find replacement bushes. I find that quite surprising, as generally, brushes for Lucas motors seem to be available. Has anybody had better luck? 

2021-04-03 Washer bottle (3) small.jpg

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Your brushes do not seem too bad, similar to what is in my pump. After cleaning I just bent the arms a bit to have a bit more force, not much off course. This did the trick for me.

Waldi

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