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Wales
by Joske Vermeule, September 1
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Jun 14th, 2026
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Joined: Dec 2010
Posts: 158 Likes: 4
L - Learner Plates On
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L - Learner Plates On
Joined: Dec 2010
Posts: 158 Likes: 4 |
That's a really neat installation.
I must admit a pressure gauge and voltmeter are very tempting.
Dave, I'm on it... see my idea about VDO gauges
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Joined: Jul 2011
Posts: 1,246 Likes: 30
Has a lot to Say!
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Has a lot to Say!
Joined: Jul 2011
Posts: 1,246 Likes: 30 |
Thanks Simon. It would seem a lot has to come off to get to the oil pump & relief valve on the sigma. My pressure is indicating some of the time 5bar @ 3000 rpm & waivers a bit. I’ll try a new sender 1st.
4/4 Ivory 4.1:1 axle, Mercedes A200 AMG
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Joined: May 2015
Posts: 327
Learner Plates Off!
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Learner Plates Off!
Joined: May 2015
Posts: 327 |
You should note that those oil pressure transmitters are mediaeval in their design. I pulled one to pieces, it's basically rheostat with wiper arm operated by a system of levers.... archaic! The on the other hand ive got installed now seems to somewhere near, +/- 15% on a good day. Installing one could cause you more consternation than you need. Ive had a normal bourden tube gauge that i knew to be accurate to within about +/-10%. But hey, it keeps the car complete. Dave, do you cars not have oils pressure indication?
By the way I did install an oil temperature gauge, the sender I installed an tapping already present in the Raceline sump although I installed a 2nd transmitter up near the pressure take off with option to use. Mine's the Mazda MZR engine by Omex, as per the Plus 4 SS, but to all intents and purposes a Ford Duratec.
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Joined: Dec 2008
Posts: 22,371 Likes: 354
Roadster Guru Member of the Inner Circle
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Roadster Guru Member of the Inner Circle
Joined: Dec 2008
Posts: 22,371 Likes: 354 |
You should note that those oil pressure transmitters are mediaeval in their design. I pulled one to pieces, it's basically rheostat with wiper arm operated by a system of levers.... archaic! The on the other hand ive got installed now seems to somewhere near, +/- 15% on a good day. Installing one could cause you more consternation than you need. Ive had a normal bourden tube gauge that i knew to be accurate to within about +/-10%. But hey, it keeps the car complete. Dave, do you cars not have oils pressure indication?
By the way I did install an oil temperature gauge, the sender I installed an tapping already present in the Raceline sump although I installed a 2nd transmitter up near the pressure take off with option to use. Mine's the Mazda MZR engine by Omex, as per the Plus 4 SS, but to all intents and purposes a Ford Duratec. My Roadster has oil pressure and voltmeter, but the GDI has neither. The most entertaining gauge I ever had was a Smith's vacuum gauge which a previous owner had fitted to my 67 Midget. How I miss that dancing needle even now, and that was 1972 or thereabouts
DaveW
'05 Red Roadster S1
'16 Yellow (Not the only) Narrow AR GDI Plus 4
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