<div dir="ltr"><div>Keith I used to run all mechanical gauges yet with the engine so far from the dash in these cars it would not only be risky if the oil line broke they would be pressure issues. I'm not going to go as far as to say these gauges are accurate yet at least give me some idea that things are working and I could see if anything leaps out of the range the gauges offer. I don't keep looking at them. I basically look at what the cold start oil pressure is then after I've driven a bit see how much it's dropped compared to the oil temp at idle . Then if the road is clear enough glance at them then the tach and make a mental note while driving to see what the pressure is at a higher RPM which I can do as well just bringing up the idle in neutral at a stop. Just an oil light is fine yet I still would need to look unless it was night driving. All the light tells me if it's set and works proper is I have 2 to 6 PSI before I rush to shut it down. Now the type of switch that cuts the engine when the pressure is border line is a better option. Or one that sets off a buzzer. I'd prefer the gauges were mounted in front closer to eye level.<br></div><div><br></div><div> I know most cars of many makes had gauges and lights which were far less accurate then the VDO I have . Worked on the same basic principle just quite a lot more crude. Later fords had fuel gauges that only took a reading on some time based idea so at one point you see 1/2 tank then it was higher or lower worst was seeing 1/8 tank then empty customers always complained about this. <br></div><div><br></div><div> I can't recall a car or truck I ever had that didn't have at the very least a water temp and oil pressure gauge as well as a light or two. <br></div><div><br></div><div> Yes it sounds as though I'm trying to convince myself or others, the truth is I like more than just a light. And I had a 66 bug and 68 Karmann Ghia and they had just a light and nothing ever happened. <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jul 18, 2020 at 5:39 PM Keith Park <<a href="mailto:topnotch@nycap.rr.com">topnotch@nycap.rr.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">electronic oil pressure gauges are always bad.<br>
<br>
Keith<br>
<br>
<br>
Topnotch Restorations<br>
<a href="mailto:topnotch@nycap.rr.com" target="_blank">topnotch@nycap.rr.com</a><br>
<a href="http://www.topnotchresto.com" rel="noreferrer" target="_blank">http://www.topnotchresto.com</a><br>
71 Squareback "Hothe"<br>
65 Notchback "El Baja Rojo"<br>
93 RX7 "Redstur"<br>
13 Subaru Outback "Blendin"<br>
<br>
-----Original Message-----<br>
From: <a href="http://type3-vwtype3.org" rel="noreferrer" target="_blank">type3-vwtype3.org</a> [mailto:<a href="mailto:type3-vwtype3.org-bounces@lists.vwtype3.org" target="_blank">type3-vwtype3.org-bounces@lists.vwtype3.org</a>]<br>
On Behalf Of William Jahn<br>
Sent: Saturday, July 18, 2020 10:44 AM<br>
To: <a href="mailto:type3@vwtype3.org" target="_blank">type3@vwtype3.org</a><br>
Subject: [T3] Engine oil temp?<br>
<br>
I do realize most don't use added gauges. The VDO oil pres/temp/voltmeter.<br>
<br>
I replaced the oil pressure and temp gauges and so far the oil pressure<br>
sender. It's mounted on a square profile steel elbow to the cooler with a<br>
banjo fitting , don't recall if that came on my engine.<br>
<br>
The pressure gauge read 10 PSI key on engine off, faulty gauge, Senders<br>
ohm readings were all over the map , faulty.<br>
<br>
Have a new temp sensor that reads fairly close.<br>
<br>
Here's the deal . The oil pressure readings are a little higher than the<br>
10 pSI per 1,000 rpm rule. I don't know who made the rule but I do know VDO<br>
gauges are not 100% accurate at least to say they may not be.<br>
<br>
7 mile drive 81 * idle PSI 25 . Oil temp read 180* . Shut it down for an<br>
hour temp dropped to 140 oil pressure back up to 35 pSI 1,000 RPM the<br>
highest it gets @180 * 40 PSI. Drove home 7 miles ambient 85*. read about<br>
the same. Shut it down for 10 minutes oil temp was 190* .<br>
<br>
The temp will rise yet it almost seems as if the cooler always has oil<br>
flow.<br>
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