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Hall Effect sensor tester
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djkeev
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PostPosted: Wed Jan 05, 2022 5:01 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Remember Radio Shack kit auto tools?

You build it, you learn to solder and some basic electronics...... and when you're done you had a practical too to use!
I wonder what happened to my old dwell/tach? ........

Dave
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DuncanS
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PostPosted: Wed Jan 05, 2022 10:56 am    Post subject: Re: Hall Effect sensor tester Reply with quote

I've gotta few that I wonder about too from way back when. But what's getting alarming is apparently there is a teenager who comes in the middle of the night to work in my shop as all sorts of stuff is disappearing. A great pair of long handle pliers, 1940 sharp tin snips, metric allen wrenches to name a few. I know getting older and memory can be an issue, but what the .... is happening? Pliers, for instance. Figured I put them in the wrong drawer. Nope, went through every one. Pulled them out and dumped them out onto the table saw and sorted through. Threw out some odd pieces of paper with measurements and dirty band-aids, but no pliers or anything else AWOL either. At least I haven't found my bag of coffee in the dryer yet, but I suppose that will happen too.

Guess you're not supposed to admit to old age failings. A little late for that on this forum, as by now all of you have figured out my Mad Hatter proclivities anyway. Here is one of the latest.

When I cut the roof out last summer, I knew I wanted to eliminate the C pillar cross member. However it was going to take some time and put the DD out of circulation for a while so now I'm doing the exploring and getting ready for the first warm month to slap in an angle iron. After a bunch of consideration, this seems like a decent solution and maybe the simplest to install. I know there are lighter weight possibilities as I don't want to add any more weight aloft than necessary, but ........ At 4 lbs per foot it will add up to about 65 pounds total, deducting for the missing cross member.. For ease of the install, I can live with that. And here's how it would fit.
Image may have been reduced in size. Click image to view fullscreen.
I cut out the roof where the deformation ribs were as I had to have a flat where the canvas goes over the roof. The photo was taken at one of the cutouts.

I'll shut up and go away now as I ddn't want to hijack the thread. But I can relate to Dave's missing tools and equipment.


Duncan
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DanHoug
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PostPosted: Sun Jan 30, 2022 5:37 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

i've a new form factor for these testers and created an information page along with an updated schematic, parts list, downloadable instruction sheet, and video on my website.
https://www.thefixitworkshop.com/home/devices

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dhaavers
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PostPosted: Sun Jan 30, 2022 5:54 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

Looks good! I'll take the second one from the top... Wink

- Dave
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DanHoug
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PostPosted: Sun Jan 30, 2022 6:17 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

dhaavers wrote:
Looks good! I'll take the second one from the top... Wink

- Dave


PM'd. 3 left!
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60% of what you find on the internet is wrong, including this post.

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PostPosted: Sun Jan 30, 2022 8:02 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

I just ordered one. I spent quite a while chasing a problem last year before finally ID'ing problems with the Hall. This would have saved me a LOT of time. Thanks Dan.
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DanHoug
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PostPosted: Wed Apr 13, 2022 10:55 am    Post subject: Re: Hall Effect sensor tester Reply with quote

i've made another batch of 8 that i'll offer up first here on the Samba list and then i'll bring them to the Facebook 'VW T3 Vanagon WBX Waterboxer Wasserboxer Engines' group. unfortunately, the distributor end plug is now $15 per piece so i've had to raise my price from the last batch to cover purchasing that plug. if you look at my website, there's lots of info on how to make your own including detailed a detailed parts list, which is the route i suggest to save paying me to make you one! there's also ordering info there if you just don't want to sit down with a soldering iron. if someone can find me an inexpensive source for the plug i'll drop the price back down!
https://www.thefixitworkshop.com/home/devices

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60% of what you find on the internet is wrong, including this post.

'87 Westy & '89 Westy both 2.1 4spd

Past projects can be found at--
www.thefixitworkshop.com
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1988M5
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PostPosted: Wed Apr 13, 2022 11:17 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Abscate wrote:
Pullup refers the function of the resistor, not its type...when you get to my age though, its called Depends.


https://mandela-effect.fandom.com/wiki/Depends_Underwear_is_now_called_DEPEND_Underwear
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jlrftype7
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PostPosted: Wed Apr 13, 2022 1:00 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

DanHoug wrote:
i've made another batch of 8 that i'll offer up first here on the Samba list and then i'll bring them to the Facebook 'VW T3 Vanagon WBX Waterboxer Wasserboxer Engines' group. unfortunately, the distributor end plug is now $15 per piece so i've had to raise my price from the last batch to cover purchasing that plug. if you look at my website, there's lots of info on how to make your own including detailed a detailed parts list, which is the route i suggest to save paying me to make you one! there's also ordering info there if you just don't want to sit down with a soldering iron. if someone can find me an inexpensive source for the plug i'll drop the price back down!
https://www.thefixitworkshop.com/home/devices

Image may have been reduced in size. Click image to view fullscreen.

email sent Dan.... Applause Applause
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Vana Guy
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PostPosted: Thu Apr 14, 2022 7:50 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Dan, add a plug for jumpers to connect to the vehicle 12volt system, for on-the-road testing. A 9 volt battery may be dead when needed!

Wait, I got it...
Add a plug for powering from 12 volt system, or for plugging into wire harness to test for power to hall sensor.
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DanHoug
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PostPosted: Thu Apr 14, 2022 8:14 am    Post subject: Re: Hall Effect sensor tester Reply with quote

i send these out with a fresh Ray O Vac battery... 5 year shelf life. with the tester unplugged, there is no complete circuit to the battery, meaning zero quiescent current draw.

being self-powered, they are handy for sorting thru distributors in your stash... no add'l power needed!

but i get your point. however, just lick the battery if you think it is dead. get a tingle, it's good.
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bridgetroll13
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PostPosted: Thu Apr 14, 2022 9:55 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Dan,

You have to scroll down a bit but he has the distributor plugs listed at $6.00

https://www.prancingmoose.com/blackvinyl.html#EFIplugs

Lots of other good stuff as well.

Erik
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PostPosted: Thu Apr 14, 2022 10:17 am    Post subject: Re: Hall Effect sensor tester Reply with quote

okay, this is promising and thank you for the lead!! i've contacted Dave, the site owner, to see if he has stock. if so, i'll immediately drop my price $10 (and refund jlrftype7!!). standby!
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60% of what you find on the internet is wrong, including this post.

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floodwood
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PostPosted: Thu Apr 14, 2022 11:05 am    Post subject: Re: Hall Effect sensor tester Reply with quote

I have an economics question.

This tester is $85, and a new distributor runs about $79.95 at gowesty, and $99.95 at vancafe.

While I understand it is good to have diagnostic tools, would it not make more economic sense to simply purchase a new distributor/hall sensor rather than paying for an expensive tool to test then ultimately pay to fix/overhaul an old aged one?
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DanHoug
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PostPosted: Thu Apr 14, 2022 11:36 am    Post subject: Re: Hall Effect sensor tester Reply with quote

floodwood wrote:
I have an economics question.

This tester is $85, and a new distributor runs about $79.95 at gowesty, and $99.95 at vancafe.

While I understand it is good to have diagnostic tools, would it not make more economic sense to simply purchase a new distributor/hall sensor rather than paying for an expensive tool to test then ultimately pay to fix/overhaul an old aged one?


that's a great question! i carry this as a troubleshooting tool so that i can definitively and really quickly rule out the distributor as a 'no start' problem. to me, that is much preferable to pulling the distributor at the side of the road, installing a new $80 one, and either carrying a timing light or guessing on the timing to try to start the engine. THAT is the utility... snap it on, test distributor, look elsewhere if good. i hate the crapshoot shotgun parts replacement method of diagnosing.

i've given the parts list and schematic to build your own at far lower cost, which narrows the equation because you don't pay for $9.45 shipping and an hour of my time. i offer this for those that just don't want to build one. for me, that's expensive but for some, it isn't expensive or is worth saving the futzing around building one. but i'll always defend the utility of quickly knowing whether your sensor is good or not!
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60% of what you find on the internet is wrong, including this post.

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PostPosted: Fri Apr 15, 2022 7:47 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Dave Barton confirmed that he has those distributor plugs for $6 so i'm dropping the price to a more reasonable $75.

thanks to bridgetroll13 for saving y'all $10!!
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PostPosted: Fri Apr 15, 2022 11:23 am    Post subject: Re: Hall Effect sensor tester Reply with quote

Glad to contribute!

Erik
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PostPosted: Fri Apr 15, 2022 12:02 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

floodwood wrote:
I have an economics question.

This tester is $85, and a new distributor runs about $79.95 at gowesty, and $99.95 at vancafe.

While I understand it is good to have diagnostic tools, would it not make more economic sense to simply purchase a new distributor/hall sensor rather than paying for an expensive tool to test then ultimately pay to fix/overhaul an old aged one?
Small problem with that line of thought, the above ^^ units are only for the 2.1 wbx and are stated not to fit a 1.9 wbx. Durn, once again we 1.9'ers are left out in the cold... Razz Razz Mad
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DanHoug
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PostPosted: Fri Apr 15, 2022 1:27 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

jlrftype7 wrote:
floodwood wrote:
I have an economics question.

This tester is $85, and a new distributor runs about $79.95 at gowesty, and $99.95 at vancafe.

While I understand it is good to have diagnostic tools, would it not make more economic sense to simply purchase a new distributor/hall sensor rather than paying for an expensive tool to test then ultimately pay to fix/overhaul an old aged one?
Small problem with that line of thought, the above ^^ units are only for the 2.1 wbx and are stated not to fit a 1.9 wbx. Durn, once again we 1.9'ers are left out in the cold... Razz Razz Mad


this development is bothering me as i assumed the 1.9 and 2.1 used the same Hall plug and receptacle. i've looked at photos online and it appears the 1.9 dist end is more rounded. standby!! more research being done.
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60% of what you find on the internet is wrong, including this post.

'87 Westy & '89 Westy both 2.1 4spd

Past projects can be found at--
www.thefixitworkshop.com
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jlrftype7
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PostPosted: Fri Apr 15, 2022 1:51 pm    Post subject: Re: Hall Effect sensor tester Reply with quote

DanHoug wrote:
jlrftype7 wrote:
floodwood wrote:
I have an economics question.

This tester is $85, and a new distributor runs about $79.95 at gowesty, and $99.95 at vancafe.

While I understand it is good to have diagnostic tools, would it not make more economic sense to simply purchase a new distributor/hall sensor rather than paying for an expensive tool to test then ultimately pay to fix/overhaul an old aged one?
Small problem with that line of thought, the above ^^ units are only for the 2.1 wbx and are stated not to fit a 1.9 wbx. Durn, once again we 1.9'ers are left out in the cold... Razz Razz Mad


this development is bothering me as i assumed the 1.9 and 2.1 used the same Hall plug and receptacle. i've looked at photos online and it appears the 1.9 dist end is more rounded. standby!! more research being done.
I'll let you know when my Tester arrives- At worst, it means changing out the connector for the Distributor if it doesn't fit exactly.
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'67 Type 3 Fastback, my 2nd car- gone
'69 Semi-Auto Stick Shift Beetle-gone
2017 MINI Coopers, our current DDs
‘84 Tin Top - Hilga....Auto
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