vj226966

I bought some new gauges the other day and i am running into some issues.First i did use the "search" option and even book marked a page or two.Most people were saying use the fittings near oil filter is,a "bell" or something.I dont have a bell on my 79.So if anyone has done this to there Sa let me know what you did.

vj226966

any one?

trochoid

iTrader: (6)

The oil pressure sender looks like a mushroom, but the 79s don't have one. Tap the banjo bolt head on the line that goes to the lower rear iron of the engine.

irishpilot

iTrader: (4)

I havent done it, But I'm going to adventure to say that if you purchased a Brass T fitting and put in between the oil filter pedestal and the housing you could get an oil psi reading that way.

trochoid

iTrader: (6)

Yes, ReSpeed sells and adapter block that sits under the oil filter for just that purpose.

vj226966

thanks ill look it up

rxtasy3

iTrader: (2)

i have the adaptor block that RB sells that my mechanical oil pressure gauge is connected to, but it was already there. get which ever is the cheapest.

vj226966

how much?I quess thats the only way?

vj226966

darn that part cost more then my gauges!

Siraniko

iTrader: (13)

oil pressure:



water temp:

vj226966

you are a god!Did you have to tap anything?Is that fitting special order?

vj226966

just went out to my car,and yes it looks like i have to drill and tap.im scared to do that,lol but thanks for posting pics.was it hard to do?

3rd and final 7

iTrader: (9)

i have seen a banjo bolt thats tapped for sale b4 but they wanted alot for it. its not that hard to do just drill the straight and run the tap in straight and your set!

Siraniko

iTrader: (13)

oil pressure: drill and tap with 1/8

behind water temp housing: wont work with GSL-SE. just tap the existing hole with 3/8

blwfly

iTrader: (4)

i have done what wacky did with the banjo easey as..
my water temp got tapped bellow the thermostat on the water pump housing.

DivinDriver

iTrader: (15)

The tapped banjo bolt used to be available as a test fitting, but it was clearly made of that special Mazda metal, bygodexpensium.

I used the RB type 2 gauge block (the blue anodized one). Not cheap, but I liked the way it looked, and I was after oil pressure and temp, which would be hard to do by tapping the banjo.

I have a used RB type I gauge block (the square silver one) that I wouldn't mind selling, if you want to go that route. PM me if interested. You'd need new o-rings for it.

bwaits

iTrader: (12)

We merged the oil block with our pedestal early this year. It is known as the Version2 pedestal.

You can tap the banjo bolt in order to get the pressure (1/8 NPT) but if you are also looking to hook up a mechanical temp probe (3/8 NPT) you will need an adapter.

-billy

-xlr8planet-

iTrader: (3)

I drilled and tapped the banjo bolt

Sgt Fox

iTrader: (3)

I have to drill and tap my banjo bolt later today for the stock sender. Yay for 1/8"-28 BSPT.

DivinDriver

iTrader: (15)

That's a nice clean looking solution, Sir William. One piece is better than two.

Make sure people know they'll need a shorty wrench and tough knuckle skin for that back nut.

bwaits

iTrader: (12)

Thank you sir.

I have some MAC brand wrenches with angled heads. The 10MM wrench is only about 4" long. Works wonders.

-billy

vj226966

Ok i have some more issues.The fitting screws into the water pump ok but the probe wont tighten up.The other adapter fitting tightens up the probe,but wont fit housing,Sorry for crappy pics

vj226966

bump cars apart!Help!

trochoid

iTrader: (6)

If you're trying to use a standard NPT thread in the Mazda OEM threads, they won't line up. The car has metric threads. If you tapped your own NPT thread and the adapter won't tighten up, you tapped the NPT threads too deep.

vj226966

i did not tap anything.The threads on the gauge itself screw into housing with no problem.I think second pic.The probe stays loose.I i screw on adapter fitting the probe gets tight"no leaks",but wont thread into housing third pic.