roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
wiper motor with "park" feature
This would be for Jensen Healey, but perhaps fit others ? Flare at rear of hood means wipers can hide. Suggestions ? Thanks, roverman.
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: wiper motor with "park" feature
Pretty common feature on 70's and 80's GM vehicles.
Would be and easy mod I would think. Cheers Fred |
Bill Young Bill Young Kansas City, MO (1337 posts) Registered: 10/23/2007 09:23AM Main British Car: '73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep |
Re: wiper motor with "park" feature
That's a good one Art, most of that type use a fairly bulky external linkage custom designed for that particular car. If you wanted to retain the cable drive as used on most British cars then I don't know where you could find a motor with that feature. Perhaps from a later Jag or such, but even the ones on the XJ8 don't really hide, just go very low on the glass which is partially behind the hood line.
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socorob Robbie La (173 posts) Registered: 09/17/2009 04:42PM Main British Car: 1963 Sunbeam Alpine Series 2 Ford 2.8 V6 |
Re: wiper motor with "park" feature
I think on a build thread on here for a 50s alpine he used a hot rod one made by a place in Georgia I think. It was cable driven if I remember correctly.
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DC Townsend David Townsend Vermont (406 posts) Registered: 11/21/2007 12:22PM Main British Car: '78 B (almost done) 30-over SBF, dry sump |
Re: wiper motor with "park" feature
You can use any Lucas 2-speed motor and wire it to have a park circuit. I have the wiring diagram. Pretty simple. Have used it before. Works. Requires a relay, that's it.
Edited 1 time(s). Last edit at 01/25/2012 05:39AM by DC Townsend. |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: wiper motor with "park" feature
I was thinking more like using the GM motor and making an adapter to the cable drive.
A simple block in slide mechanism would get it done. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: wiper motor with "park" feature
David, Perhaps you could "share" the diagram ? Fred, forget the cable, I'm still thinkin bout' that 2x4/lol. roverman.
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socorob Robbie La (173 posts) Registered: 09/17/2009 04:42PM Main British Car: 1963 Sunbeam Alpine Series 2 Ford 2.8 V6 |
Re: wiper motor with "park" feature
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DC Townsend David Townsend Vermont (406 posts) Registered: 11/21/2007 12:22PM Main British Car: '78 B (almost done) 30-over SBF, dry sump |
Re: wiper motor with "park" feature
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Bill Young Bill Young Kansas City, MO (1337 posts) Registered: 10/23/2007 09:23AM Main British Car: '73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep |
Re: wiper motor with "park" feature
l guess I'm a little confused by what you want. Most of the later Lucas wipers have a park provision, that is they will return to the bottom of their travel when turned off. If you're looking for wipers that will extend below the lowest point of their normal range when turned off and become "hidden" then that's another item. That takes a special gearbox that will drive lower with the correct electrical input but not reach that point in normal operation. There were thousands of GM and other cars built with such gearboxes but you'd have to adapt them to a cable type system or use custom linkage.
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: wiper motor with "park" feature
Bill and clan, ok "park in the basement",might be more correct. JH does park the wipers, but not in basement.Since windshield frame is close to flush with glass, this could work. Thanks, roverman.
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DC Townsend David Townsend Vermont (406 posts) Registered: 11/21/2007 12:22PM Main British Car: '78 B (almost done) 30-over SBF, dry sump |
Re: wiper motor with "park" feature
"If you're looking for wipers that will extend below the lowest point of their normal range when turned off and become "hidden" then that's another item."
Wow! How did you figure that out what Art was trying to do from what he wrote? I see it now, but sure didn't get it the first time around. |
DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: wiper motor with "park" feature
The GM motors just reverse the current and run backwards to "park" in a lower position.
This is done by releasing an offset bushing that re-positions the output shaft depending upon the direction of rotation of the motor. Sounds complex but is really a simple mechanism. Would be easy to convert to a cable drive. My Jag used to have a similar mechanism that drove a cable, but I seem to remember it being the most expensive part on the whole car. And it was Lucas. And it was broken. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: wiper motor with "park" feature
Thanks for the input guys, to be honest, I haven't gotten to that system yet. I can't tell you it IS cable drive. As all the various parts and subsystems meld, in the assembly line of my mind, I "try" to plan ahead for possible stumbling blocks. Obviously this one is asthetics, but I want the look. Thanks, roverman.
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roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: wiper motor with "hidden" feature, TR7/8 ?
Ok Triumph folks, Do TR7's/8's have "hidden wipers" feature ? Cable drive ? Thanks, roverman.
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Bill Young Bill Young Kansas City, MO (1337 posts) Registered: 10/23/2007 09:23AM Main British Car: '73 MG Midget V6 , '59 MGA I6 2.8 GM, 4.0 Jeep |
Re: wiper motor with "park" feature
TRs are cable drive, don't have "hidden wipers" but they do drop pretty low when parked, but not below the hood line.
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DC Townsend David Townsend Vermont (406 posts) Registered: 11/21/2007 12:22PM Main British Car: '78 B (almost done) 30-over SBF, dry sump |
Re: wiper motor with "park" feature
Not sure if this will work with Jensen wiper arms but the Lucas arms on my Cobra clone wouldn't park parallel to the windshield. It wasn't a function problem but the way it looked always bugged me. To fix it I clamped the end of the blade in my bench vise, gently heated the stainless with a torch and then bent it to the get the desired angle. If you can visualize what I'm trying to say, wouldn't be any reason why you couldn't so the same thing - two bends, one down to get the wiper below the cowl, one at the end of the arm to get the blade parallel again.
See attached sketch. Edited 1 time(s). Last edit at 01/30/2012 08:25PM by DC Townsend. |
roverman Art Gertz Winchester, CA. (3188 posts) Registered: 04/24/2009 11:02AM Main British Car: 74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L |
Re: wiper motor with "park" feature
David, So this mod begs the question, do wipers scrub below the window mouldings on every swipe ? Bill Young answered "TR's", but my question still is,"do TR7's have a hidden park movement" ? JH has flare at rear of hood , just like TR7. , ps. Dave Craddock sent me f-glass rear deck. It's light and stiff. I think I'll need Road Racing School to tame the Beast. Thanks, roverman.
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DiDueColpi Fred Key West coast - Canada (1365 posts) Registered: 05/14/2010 03:06AM Main British Car: I really thought that I'd be an action figure by now! |
Re: wiper motor with "park" feature
Nope.
TR7s don't have a dropped park feature Just tried it on mine. They do however, have the worn out flexible park feature. I can park my wipers on the car next door if needed ;) |
BlownMGB-V8 Jim Blackwood 9406 Gunpowder Rd., Florence, KY 41042 (6468 posts) Registered: 10/23/2007 12:59PM Main British Car: 1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS |
Re: wiper motor with "park" feature
There's got to be more to it than just reversing the motor. If that's all you did the arms would just go back up. The transmission has to have a function where reversing the motor causes the park function.
Jim |