oil pressure gauge

Greg_M

Well-known member
Dec 27, 2021
244
112
Vancouver Island
Getting closer to being able to install an oil pressure gauge. Couldn't find a 1/2" 20 UNF banjo bolt but I had a 12 mm x 1.25 banjo bolt and the local hardware store had 1/2" 20 UNF nuts and bolts.

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Greg_M

Well-known member
Dec 27, 2021
244
112
Vancouver Island
following this

that's about where I got stuck
Test fit on my parts engine. I think it'll work. The allen head machine screw holding the colant pipe bracket is the next battle. Several options. Make a new reducing bushing with less of the bolt head retained thereby reducing A. Swap the machine screw with a phillips pan head or similar with a lower profile (B). Reduce the banjo bolt hex dimensions C. Or a combination of all three. Alternatively I could find some other way to secure the coolant pipe.

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Greg_M

Well-known member
Dec 27, 2021
244
112
Vancouver Island
I learned something today. Banjo fittings vary wildly in dimension for a given banjo bolt size.
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So there will be a version 2. Pieces prepped:
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idkmybffjjill

Member
Sep 6, 2020
12
3
Walla walla, WA
Today i finally got around to installing my oil pressure gauge on my 95 D1. My D1 is a distributor car but i run a serp belt motor with an interim front cover that has a hole for a distributor. So i have a crank driven oil pump and a Distributor and my oil cooler lines are blocked off. I was always curious what my oil pressure was with the oil lines blocked off and since i wheel my D1 pretty hard and it spends a lot of time at weird angles. After spending countless hours trying to find adapters i finally decided on breaking open a factory style sensor and trying to adapt it to work since it had the best sealing surface out of anything i could find/make. After breaking the sensor apart it became clear that i could probably just tap it to 1/8 NPT and thread in my adapter. Then with some creative adapters i was able to install a factory sensor as well, so no idiot light. All in all, i think i spent about $30 in parts. Ignoring the thousands i have in tools lol. I took some pictures through the whole process so if anyone wants to see i can post them.

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LRDONE

Well-known member
Dec 3, 2020
346
120
Michigan
Here is a video, #1 of 2, that show how to install an oil pressure gauge on a Discovery 4.0L.
That's a really good way to do it. I install oil fed intermediate shaft covers on 911s and you get your oil pressure from a similar set up, an oil filter adapter with a port on it.