Today (or yesterday since it’s about to hit midnight), I was able to work on the FC a bit more. Woke up to the thread I made on the rx7club forum and got two replies. One linking me to a Napa’s website to stock replacement water temp sensor. In the info, it says it had 28 threads, meaning it’s BPT. The other post, it was verifying that it indeed IS BPT, and not NPT. The guy even posted a link of an adapter that I should consider getting.
A female 1/8″ NPT to male 1/8″ BPT fitting. THE perfect adapter to use to have the Greddy sensor fit properly into the block… but since time and money are serious issues at this very moment, I decided to bite the bullet – leave the sensor where it is now. Plus, ilike2eatricers did the same thing I did. He assumed it was NPT thread pitch and put it in anyway in this post. Private messaged him and he replied back saying nothing happened. He just used Teflon tape and screwed it in. No leaks, no problems. Let’s just hope the same thing happens for me.
The day before, Rommel came by to drop off the gauge holder and an extra boost gauge he had lying around. Thought I’d put it to good use since my Autometer one was all sorts of ghetto with electric tape, trying to be a wanna-be black gauge. lol
Took off the piece of velcro from the other gauge and put it on the new gauge i got. Even used the same bulb and vacuum tube with fitting. Crossed-over that beezy.
Here’s the mock fitment of the gauge holder and Greddy water temp gauge. In this pic, the bracket wasn’t centered yet with the screws. Later on, I screwed the bracket under that area with two screws that fit perfectly under the instrument cluster surround. Pics of the final product will be seen towards the end of the blog of course.
Did some reading up on wiring the gauge as well since it’s electronic. Other than the sensor harness, the other harness was to power up the gauge with 4 different colored wires: red, orange, black, white. I read up on a couple threads on how to wire it up that orange and white can be wired easily to a light source/parking light source. Black is self-explanatory for being the ground wire. As for red, it had to be connected to continuous 12V source. Didn’t really know what was really meant by that but I guess it’s just “constant” power. Called Ken and he said exactly that. Ran into this website to follow how to find a source. I thought about it and realized that i could just easily splice it into the cigarette lighter.
Splicing the ground wire (I know, it’s green, not black. didn’t have any other color with me) for the boost gauge light to put it together with the Greddy harness.
Wrapped the wires together. Mickey-Mouse job FTL. Too bad I don’t have any wiring goods to join the wires together. Electric tape was definitely my best friend for this job.
Doing the power for the gauge now.
After routing the wires around and under stuff, here is the final product.
I’m pretty satisfied with everything. Only problem is that I won’t be able to see the temperature while driving straight. >___< I guess that gives me an excuse to rock an aftermarket steering wheel that doesn’t block it. =P
Here’s a pic of how it looks like with the lights. Seriously, the picture doesn’t do it justice but I personally think it’s a clean job. As for the boost gauge light bulb, I’ll probably try getting an orange mask or something to cover the bulb that way it matches with the orange and black theme. =P
Even with all this done, I still have yet to finish putting the UIM back together. After that, it’ll be putting the intercooler back on. Lastly, put the coolant and burp the hell out of it. Hopefully I’ll finish soon.
Until then, good night.































