[HHGadget]

I saw Dave post this on FB. Ordered one in wrinkle black.
Agreed on the lack of coolant visibility. I keep meaning to email him about that. Is there a line or mark inside to check once you take off the cap?

With all the stuff i went through bleeding and draining and filling repeatedly last year, mine has seen better days. Happy to be the forum guinea pig on this one….

 

[HHGadget]

Here is one possibility but cant find temp or pressure specs.

https://www.motion.com/products/sku/04883066?rrec=true

 

[HHGadget]

And here you go!
Amazon.com: Rigid Plastic Sight Closed Circuit Liquid Level Gauge, Mounting Centers (In.) 5 : Industrial & Scientific

How would you mount it with no access to the inside to attach a nut?

 

[HHGadget]

Also there is this from DDM works but they have welded a nut on their tank.. sigh

Sight glass for Polaris Slingshot Coolant Tank by DDMWorks-D

www.ddmworks.com

 

[HHGadget]

Yes, specs would be nice. I always love an illustration showing measurement points and then providing no numbers. Of course with an A to B distance on a container you know it will fit.

Nice fine, might have to write for specs.

Richard

It’s 3” but no mention of PSI or temp specs

 

[HHGadget]

If you go to the Amazon link Rob posted, you will see sight glasses also listed in the surrounding "look at this other similar stuff " side pieces. If you were concerned about blowing out a sight tube, installing one, or two (upper level/lower level), sight glasses would be an alternative. Seems it would depend upon the thickness of the tank metal to accept drilling and tapping for screwing in the sight glass. Another option, provided the threaded portion is long enough to place a nut on the inside and an o-ring outside (?) for sealing, the sight glass should be very easy to install. Given acceptable tolerance to pressure and temp, the tube is visually more accurate, but two sight glasses could serve the same purpose. Think about the oil level sight glasses used in motorcycle crankcases, visually, for example.

My 1.999 cents worth.

Richard

How does one get to the nut on the inside to tighten it down. One assumes the aluminum is too thin to just thread a male sight hole in as in the DDM example.

 

[HHGadget]

I posted that as an example not necessarily as the specific solution. I found tanks on line that have the sight tube mounted. I am also sure that Dave can come up with a good solution. In RED.

No judgement just spitballing ideas. If one was to know where the proper height was, doing a single sight window in a larger size would almost be doable as i believe i could get one finger down the cap hole and hold a nut, maybe, just possibly a small socket wrench.

 

[HHGadget]

Pretty sure it does not.
The plastic tanks can fail, though i think it isnt super common.
However as parts become more scarce over time i prefer a heavier duty, longer lasting solution like this.
The aesthetic is nice as well

 

[HHGadget]

I just realized you'd also lose the function of the coolant sensor with this right? I wonder if that means your coolant sensor dashboard light would always be on? I guess that's a question for PAW.

I believe it states on his website it comes with a coolant sensor pre installed

 

[HHGadget]

My plan (if Dave is unwilling to tack weld some nuts before painting it) is to set the system up and run for a few weeks periodically checking the level inside when cool.
Then when i feel confident i know where the level is with his tank installed, locate a 1-2” single round looking glass port and install it dead center on the operating line.

 

[HHGadget]

HHGadget addressed that in post 17 with a sight glass installation. Though I'm not sure how one would go about determining where it should be located.
View attachment 128458

Post #34 is my “plan” on how to determine where it should go.
i am attempting to find a larger version of the image you posted, which in theory would give some wiggle room. The one Rob posted is the ideal but without welding some correctly spaced nuts to the tank before it is coated / painted, i am not confident it would be able to be attached after the fact.
I left Dave at PAW a voicemail yesterday and will follow up Monday. Hopefully henis open to the idea.
As it is there are metal coolant tanks with the sight glass built in that are less money than just the sight glass alone. I would happily order one and send it to PAW if he would be willing to install it before coating…
What is unique about PAWs solution is that it includes the low coolant sensor.
Here is the cheap amazon one that has the level meter built in

RASTP Universal 1L Coolant Overflow Tank, Aluminum Coolant Radiator Tank,Reservoir Expansion,Black

Buy RASTP Universal 1L Coolant Overflow Tank, Aluminum Coolant Radiator Tank,Reservoir Expansion,Black at Amazon. Customer reviews and photos may be available to help you make the right purchase decision!

www.amazon.com

 

[HHGadget]

Maybe I'm missing something here but why don't you guys just use a flashlight? The filler cap is right there at the edge of a tank wall if you see coolant below the halfway point add some. You can pre-measure this point by filling it with dyed water before you install it or am I missing something. The wall the cap is closest to is even the one closest to your vantage from outside the car engine bay.......

Its a quick visual thing without having to open the cap.
Dave just emailed me and is going to add the option for the viewer like the DDM link i posted for a nominal fee.