Triumph TR4A - Adjusting the sweep angle - Lucas DR3A wiper motor
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- Опубликовано: 14 окт 2024
- The DR3A Lucas Windshield Wiper motor was used in multiple triumphs and depending on the model a different gear was used for a different sweep angle. This beautiful TR4A had a 120° gear, which was absolutely insufficient, so let's see if we can swap it for a 140° and see if that will be wide enough. Or maybe we can do even better than that.....?!?
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Nice Job. I know you liked it because it involved math and calipers 😉
Another (shiny) beauty leaves the workshop in better shape than when it arrived !
I don’t have an English car in the garage but I find your videos very relaxing. Your a great teacher Elin.
great Job, I am so glad you altered the original to improve the overall job, as for the client, your resolution will be far more satisfactory. Well done, admirable.
Great job Elin. We all never finish learning, and you learn more about these wonderful old cars all the time. I'm pretty sure you will certainly soon be a Canadian authority on them, and maybe a world authority one day.
A little ingenuity goes a long way! 😊
Very clever Elin.. My 67 TR-4A was the same but I never figured out how I could move the welded in spindle to improve it. Needless to say it was all on the 'other side' of the car as I was in the UK. I remember asking the advice of the Lucas service centre and their tech never came up with a solution either. We needed an Elin Yakov back then !
I will never forget my TR4 IRS with British Racing Green
What a fascinating video. Of course, it rarely rains here in the UK so we don't worry much about the design of wiper mechanisms(!)
strategic use of garage dust! Genius ;-)
Thank you for taking us to Elin's wiper and rain lab.👍😁
The TR4A is beautiful, I have my TR6 apart and noticed the spindles that hold the wiper arms were quite tight, restricting motion. Since there is a spring that drives the spindles, it could shift when getting to the the tight spot. Removing the spindles from an assembled car is very difficult. Once I removed it, I sprayed Kroil, then Slick 50, so it travels up to the top end. They spin great now. I have much to do before reassembling the car so I cannot say for sure if that was everything needed, ut it had to help. The wipers worked well 40 years ago, storing it for so long in my garage the lubricants get hard.
I love your videos sooo much. They have been a massive help to me while working on my car. Also your personal style and sense of humor are great. You are an excellent teacher and have saved me a lot of frustration. That being said These cars strike me as the first KIT car ever made. I do enjoy my Triumph though. Also your comment on the tape holding the flasher unit shays a lot too.
Good job and good solution to the problem. Thankfully, that gear was available. Thanks for taking us along. That is certainly one gorgeous automobile!
This is a very intelligent solution to the reduced sweep. Also, you get much more wiper movement when there is water on the screen when it is raining, so the effect will be more in reality to what you see in the garage dry. Another great video.
Interesting to see how the mechanism works, thanks for showing us this. I'm glad you got some improvement after all your efforts.
What a lovely car to have in your garage. Love the interiors with the wooden dashboard and gauges!!
No show from Rusty, I expect he thought he would get sprayed!!
Good luck from Spain!!
Excellent job well done
Wow what a beautiful car ! Love the TR-4A !
Woof. I would have been screaming after the first gear went in.
Nice job Elon! I may try this over the winter myself.
Dave Connitt
Nice work! Interesting that you have one straight wiper and one cranked.
You probably should have taken the rack boxes out and fully cleaned and lubricated them too. Seems to be a lot of resistance when you pushed the cable back through. Also it would have been a good idea to soak the phosphor bronze bushes in oil overnight before rebuilding the assembly.
...My TR3A ('59) has a different wiper issue, all the insulation is falling off the wire from the motor to the cap....I was going to try liquid insulation, but I guess I'll just replace the wire which will require another complete disassembly.....One important thing to be aware of with these wipers is that, when the brushes wear out there is nothing to prevent the brushes holder "claws" from contacting the commutator...The wipers will keep working as the 'claws' grind into it as the little spring pulls them closer together...I placed a small plastic tube over the spring so it could only close so far and prevent ruining the whole unit when the brushes wear too much....A thick plastic straw (or 2), cut to length with a slit in it can be snapped over the little spring to act as a 'limiter'...After owning the car for 53 years, I've learned a few tricks...haha John (west coast, Can.)
Bravo, the Master 😀
Zoom zoom
Good job
Are the arms on the proper side? 🤔
haven't watched the whole video yet..i would swap arms to see the change ( or none )
The right wiper touch the rubber and needs one teeth higher. You need a protective mat for the fender, a scratch is very fast in.
Elin, I think the reason why the passenger side wiper doesn’t go so far over is because it is cranked. The driver’s side wiper is not cranked. A matching straight wiper on the passenger side will therefore give you the full sweep that you seek…good luck buddy. 🙏🇬🇧
Phil, Those are the proper wiper arms for the car. I owned a 67' TR4A for 20 years. The designers are to blame for that.
@@mattinsley1721 yes I’ve had a better look now and it seems that Triumph have just moved the scuttle position for the wiper spline capstans further over to the LHD side of the car but kept all of the original RHD mechanisms. -Hence the triangular unswept area in the upper LHD driver’s sight line…- (I’m surprised someone hasn’t devised a mod kit to correct that)..🤔
@@philtucker1224 Phil, I never gave it much mind on my car. I live in SoCal so it doesn't rain all that much.
I wish I had kept that car.
Nicely done …!
Is the 120 vs. 140 a simple part number difference or does it represent a degree of sweep of the wipers?
Do you know if both gears are stock to TR6 ?
Thanks
Nice, but did you put the three rivets back in the plastic plate to the metal center. They could separate over time and cause the plastic to turn but not the center hub.
There are no rivets. What prevents them from spinning relative to each other are two square tabs on the plastic gear that fit into the 2 square notches on the metal plate.
@@RustyBeauties I understand the one you worked on had no rivets but the other wheel had them, and the wheel you worked on had the holes for them. And I saw the drive dogs, maybe thats more than enough just figured since the other had it when produced someone may have replaced the plastic gear and not installed them.
@@RichardHeadGaming Yes, you are right, the other one had them, but I think that was an overkill. The plastic gear has no way to split from the plate as they are compressed to eachother and held together by the circlip on the shaft outside. On the other side if there are forces strong enough to wear off the plastic dogs, then these forces will be more than enough to wiggle the rivets out from the plastic too. I think someone went above and beyond on the 140° one.
Why Triumphs?
How did you become an expert on them?
Is this a wiper motor from Mercedes Benz, that´s sign looks like the Mercedes Star?
I doubt that. Looks like the very typical Lucas wiper motor setup. At 16:40 you can somewhat read "LUCAS" on the back of the motor.
That looks like a right hand drive motor to me?
I am not sure there is a difference. I think they used same motors on LH and RH drive cars. But I am not 100% sure, I haven't worked on any RH drive cars.
@@RustyBeauties the only reason I say that is because normally the vertical stop on the wiper stops parallel to the drivers side pillar and the sweeper blade sweeps across the windscreen in front of the passenger…
Good overlap, you have eliminated The Triangle of Doom. (For reference see HubNut)