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Anyone installed an oil prs. gauge?

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VolvoC303
Posts: 1512

Re: Anyone installed an oil prs. gauge?

Post#11 » Sat Aug 01, 2015 2:30 am

My 617A has one idiot light sensor that faces toward the front, off the filter housing. I dont have anything under my turbo oil-tube like that pic shows. Maybe I could just use the one Fernando used in place of it?

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pierre repairs
Posts: 1784

Re: Anyone installed an oil prs. gauge?

Post#12 » Sun Jan 03, 2016 8:51 am

Hi I also used the dual sensor from VDO on my OM 602 with a T connection to have the idiot light - oil pressure value and temperature. If I remember well the idiot light value on standard sensors is 0.8 bars and the VDO is 0.5 bar .... Or vice versa check the data sheet of the sensor
G300TD - W463.331 & G250 - W461.401 Wolf LL

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cal_w460
Posts: 1196

Re: Anyone installed an oil prs. gauge?

Post#13 » Tue Jan 08, 2019 3:26 am

This VDO Oil Pressure sensor with warn light doesn't need any adapter on OM617. Wich the sensors recommended in this thread does I think? Since they are M10x1.0.

Oil Pressure Sensor 0-5 bar / 0-80 psi M12x1.5 thread with warn light
VDO Part no. 360-081-030-008C

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PNZWGN
Posts: 804

Re: Anyone installed an oil prs. gauge?

Post#14 » Tue Feb 26, 2019 5:50 pm

Fernando BR wrote:Two connections : pressure gauge and idiot light.An small adaptor needed.Works with no problems on my 300GD.


I installed this sender when I did my swap last year. Idiot light works fine. Finally got around to installing a 100 PSI VDO oil pressure gauge today like Vadim posted above.

Got everything hooked up using 14 gauge wire as recommend by VDO, dedicate ground, blah. When I turn the ignition to on needle creeps up ever so slightly. When I actually start the truck the needle pegs at 100 as described above and stays there. After driving for a while/warmed up the needle drops down to about 40 PSI at idle, 80 PSI at bery light throttle and pegged at 100 PSI the rest/majority of the time. I thought read 617a oil pressure while driving was around 50 PSI with relief valve opening at around 102-110 PSI (WOT/heavy engine load.) Thinking I might need a different gauge..?
Regards,

S.P.R.

PNZWGN Mk II build thread: https://clubgwagen.com/forum/viewtopic.php?f=18&t=5605

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Chris
Posts: 2742

Re: Anyone installed an oil prs. gauge?

Post#15 » Tue Feb 26, 2019 6:43 pm

Pressure depends on oil viscosity, ambient temperature, engine freshness, etc.

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Fernando BR
Posts: 1783

Re: Anyone installed an oil prs. gauge?

Post#16 » Wed Feb 27, 2019 10:37 am

Mine stays at 20C at iddle with hot ( 85C- 90C) engine and 80C with cold engine. But if
temps goes really down i do believe you need as 0 - 120C range gauge.
Anyway the warm iddle reference is the most important , i think.

NorwayW461 240gd
Posts: 66
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Re: Anyone installed an oil prs. gauge?

Post#17 » Wed Feb 27, 2019 8:53 pm

I am going to try an aem 100psi unit, should have it on in a couple weeks. Im hoping to be able to use it for watching oil filter condition, i noticed in my toyota i started losing oil pressure when my filter was a little over a year old. Wonder if Ill be able to use values as indicators, instead of the binary pressure or not that is stock.
Idaho Thad
thumpersold@gmail.com
'04 G500
'81 lwb 240gd+om617a+611.113

NorwayW461 240gd
Posts: 66
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Re: Anyone installed an oil prs. gauge?

Post#18 » Wed Feb 27, 2019 8:54 pm

Moderator review?
Idaho Thad
thumpersold@gmail.com
'04 G500
'81 lwb 240gd+om617a+611.113

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pierre repairs
Posts: 1784

Re: Anyone installed an oil prs. gauge?

Post#19 » Thu Feb 28, 2019 2:00 am

To add to Chris' comments about the engine temperature, oil viscosity, engine condition, I would add the age of oil, and outside temperature.
The choice of gauge should be established using Mercedes criteria about oil pressure in the system - a too low scale is a no go - a too high scale lead to miss reading.
adding to that the pressure sensor range must match the pressure gauge - otherwise you end up with miss reading or wrong display...
Reading your post I think the gauge behave as it should and pressure readings are normal but again I am not aware of oil pressure readings for various engine RPM for the OM 617
G300TD - W463.331 & G250 - W461.401 Wolf LL

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