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 Temp Gauge and USB Mounts

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Chris W
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Carlotto
Carlotto
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PostSubject: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Tue May 18, 2021 7:57 pm

I’ve been wanting to add an oil temperature gauge and a USB receptacle to my bike. Here are a couple of photos of the preliminary work on the project. The fork tube clamps are from an ebay vendor, RZMPARTS, and are about $9 and $12 US each for the 31 and 53mm sizes. The temp gauge and the USB port are about 28 and 29mm respectively, hence the bit of industrial heat shrink tubing to take up the gap. (A bit of gasket material, inner tube, or o-rings would also work.) I should be able to position the 53mm clamps on the upper fork tubes, either above or below the top triple clamp. I still have to decide whether to drill the larger or the smaller clamp to allow the 8mm fastener the clearance for proper clamping of the mating part.

The Blue Sea Systems 1741 temperature gauge is compact and can display either in C or F by simply changing the power lead polarity. I’m trying out their 1821 sensor but may opt for a more compact NTC thermistor later on. I’m also looking at how to incorporate a couple of Ram B-sized (1 inch) mounting balls to accommodate a cellphone/GPS mounting arm with the same setup.


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Chris W
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Wed May 19, 2021 5:49 am

they look pretty sharp
What is your plan for weatherproofing the connections on the back of the devices?
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Carlotto
Carlotto
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Wed May 19, 2021 6:36 am

Chris W wrote:
they look pretty sharp
What is your plan for weatherproofing the connections on the back of the devices?

The two quick-disconnect connections on the USB unit are easy enough to do with heat shrink tubing or with self-sealing crimp lugs. For the temperature gauge I plan to use two different sizes of heat shrink tubing. First I'll use a smaller size to seal from the connector to the lead wires and then a larger size to cover the back of the meter body and down over the smaller heat shrink and the connector. As the wiring bundle will be fairly small at about 5-6mm diameter it won't be possible to find heat shrink tubing to go all the way from 28mm to 5mm in one step.
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Chris W
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Chris W

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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Wed May 19, 2021 7:49 am

check out Mcmaster Carr - they may have a one piece solution for you. there are straight and 90 deg options
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Carlotto
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Wed May 19, 2021 5:23 pm

[quote="Chris W"]check out Mcmaster Carr - they may have a one piece solution for you. there are straight and 90 deg options
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I saw those when I first started planning the project and I have to say the MMC is rather proud of them at $12 each, plus shipping. I looked around a bit for a molded rubber boot of some sort thinking that somebody probable already makes one for another purpose, but no luck so far. It’s not that critical as I have lots of different sizes of heat shrink around and quite honestly a $5 bicycle inner tube and a few cable ties would get the job done with material for another 20+ of them to spare.

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OldMojo
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Fri May 21, 2021 4:16 am

Thanks for posting this. I've been looking to mount some USB chargers at the bars, but couldn't find anything that didn't look like some cheesy RV setup.

I like how those clamps resemble connecting rods  [You must be registered and logged in to see this image.]
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not-fishing
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Sun May 30, 2021 10:54 am

Let us know how the oil temp gauge looks in broad daylight with dark sunglasses or visor.
I put an LED voltage gauge on my V11 lemans and can't see it worth a damn in daylight.
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evansnows
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Sun May 30, 2021 12:37 pm

Where and how are you going to mount the temperature sensor ?

That seemed to be an issue when I looked into fitting a trailtech unit.

I eventually decided to fit an oil thermostat which will keep the oil temperature up in cold weather
so there's no need to momitor it.
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Carlotto
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Fri Jun 04, 2021 3:48 pm

not-fishing wrote:
Let us know how the oil temp gauge looks in broad daylight with dark sunglasses or visor.
I put an LED voltage gauge on my V11 lemans and can't see it worth a damn in daylight.

I’ll do that once I have it up and running. The 1741 sensor was dead on arrival and Blue Sea Systems is sending me a new one.
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Carlotto
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Fri Jun 04, 2021 4:06 pm

evansnows wrote:
Where and how are you going to mount the temperature sensor ?

That seemed to be an issue when I looked into fitting a trailtech unit.

I eventually decided to fit an oil thermostat which will keep the oil temperature up in cold weather
so there's no need to momitor it.

The sensor is designed to be strapped to a pipe or mounted via a #8 (4mm) screw. I plan to attach it to the output line of the oil thermostat and wrap it with fiberglass electrical tape. Chances are the response time will be too slow so I’m already looking at using a bonded 10 kilOhm  NTC thermistor, similat to what Beetle did with his.
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OldMojo
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Fri Jul 16, 2021 6:51 pm

Looking to knock this out this weekend. I understand that there's a factory GPS harness on the bike, so I figured I'd use that for the USB supply. Before I go rooting, does anyone know where this harness can most likely be found? Is it crammed up behind the headstock somewhere, or am I going to have to fish it out from under the tank?
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Clancy
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PostSubject: Re: Temp Gauge and USB Mounts   Temp Gauge and USB Mounts Icon_minitime1Fri Jul 16, 2021 8:32 pm

OldMojo wrote:
Is it crammed up behind the headstock somewhere

Yes.
Found mine accessible from the right side after removing the plastic wing.
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