openinverter forum

MattsAwesomeStuff wrote: ↑Sat Jun 17, 2023 6:08 pm Buy a 3/8", drill it out, tap it for 7/16". Easy. Only takes a few hours and is easy to screw up.

makes sense

Let's see where we can shove these?

six holes each and Home Depot still got em wrong, so I had to moke some modifications, I can't stand aftermarket EV conversion parts

a little trial fit

the angle triangle is just a prop

time to poke some holes

that's not too shabby

in keeping up with the current social media trends I now break my silence on the Tesla Model S water pump installation

one or two of the many part numbers
PN: 6008047-00-E, 1035348-00-G

so I call this the Tesla Model S water pump but I think someone else makes it for them and the only thing that makes it Tesla is this neat rubber bracket

pin out diagram lifted from Lingenfelter High Flow Varimax Intercooler Pump Upgrade Kit Installation Instructions

"Due to the thermal expansion of rubber coolant hoses, LPE does not recommend using
worm gear clamps to clamp the hoses to the intercooler pump. Because worm gear clamps
do not apply constant tension to the hoses, the hoses can leak when exposed to cooler
temperatures. LPE recommends the use of the OEM constant-tension clamps or spring
clamps as superior alternatives to the standard worm gear clamp."

What will this pump cool?

• the Lexus transmission (it has two electric motors inside of it)

• the Lexus Inverter (think carburetor/distributor combo)

• the Chevy Volt battery charger

FYI the Chevy Volt DC DC Converter (aka alternator) is air cooled and does not require the water pump action


What? I like to watch.

so tested it out with a bucket, it worked

plumbed it on the truck, it didn't work

Time to troubleshoot

of course the place that sales the 3/4" I.D. clear hose by the foot was out of the 3/4" I.D. clear hose, so off to Home Depot I went (like a fool) and instead of buying just one foot of it I had to buy a spool, at California prices mind you !

so now we can see what is going in to the water pump as well as what is coming out... we shall call this Science !

don't ask me how I got rid of that air bubble as this is a family friendly forum

with the plumbing done and the pump pumping it was time to affix the first gen Chevy Volt onboard battery

unlike it's cousin the DC DC converter the charger's feet are flat on the aluminum plate so I couldn't wedge a nut under them to hold the bolts in the plate so I had tap the aluminum plate so that I could screw them in, last thing we need is bolts falling down on a 351 volt battery pack

after two trips to ACE Hardware where I bought the wrong length bolts twice, I finally managed to get the 1 1/4" long ones that would not bottom out on the acorn nuts, cause that's what matters most here when building an electric vehicle and is time well spent

also that "water proof" battery tray lid now has more holes in it than fancy Swiss cheese

had to do a little minor repair on the first gen Chevy Volt onboard battery charger, the coupling for the regular car battery cables was loose and I needed to get inside to turn the nut on it

Gregski wrote: ↑Mon Jun 19, 2023 1:58 pm Time to troubleshoot

of course the place that sales the 3/4" I.D. clear hose by the foot was out of the 3/4" I.D. clear hose, so off to Home Depot I went (like a fool) and instead of buying just one foot of it I had to buy a spool, at California prices mind you !


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Did you check how the clear hose behaves when it's warm/hot? I had variants that became very soft. From what I could find, the Everbuilt brand you have there is good for 65°C (or 150°Bananenheit).
Not much reserve I guess, especially in California, where the ambient temperature reaches 2/3 of the maximum rating already.

crasbe wrote: ↑Wed Jun 21, 2023 1:25 pm Did you check how the clear hose behaves when it's warm/hot? I had variants that became very soft. From what I could find, the Everbuilt brand you have there is good for 65°C (or 150°Bananenheit).
Not much reserve I guess, especially in California, where the ambient temperature reaches 2/3 of the maximum rating already.

thank you, it is not meant to be a permanent solution, I even noticed that the self gripping clamps don't contract enough to grip the 5/8ths one that connects the charger to the inverter (highest hose in the pics) so I will remove these as soon as I am ready for my first test drive, I just needed something on there to troubleshoot why the pump was not pumping

Just took that old B&M shifter off the shelf
I hope to install it all by myself
Today's aftermarket ain't got the same soul
I like that old time rock 'n' roll

not your father's B&M

So I'm thinkin' something like this, should be totally fine as long as I can grow my right arm another 6"

WARNING: these next few updates of my sheet metal fab skills will make Damien Maguire's reverse engineering 3 hour long videos seem like sit on the edge of your seat riveting !


a quick shave, cause you can't weld rust or paint

and a bit of gentle persuasion