In my former 1984 Westfalia I would be hard pressed to get the oil above 105C and usually it would be about 95C - this is with a 1.8L engine. My Syncro goes up to 120C and this is with a 2.0L engine. Originally I thought it was displacement differences, but now I know this is not the case. My 84 Westfalia would be +- 0.1V 14.4V while driving down the highway and the voltage would not change more than 0.2V with the lights on. My 1988 Syncro, along with a friend's 88 Syncro both drive at around 13V and the voltage fluctuates with the electrical accessories that are turned on. With high beams on I am close to 11.5V. Now, we both notice that the lower the voltage goes in the system the higher the oil temps got - instantly - if you turned on the lights would add about 5 degrees the instant you turn on the lights. Now today for the experiment, I took a 1.5V dry cell and installed in in series with the positive lead of my gauge and the reading went no higher than 105C when I pushed the engine really hard. So... after all of this I have some questions: - What voltage are these gauges supposed to run at? - Does anyone have a resistance to temp graph? The one in the Bentley manuals for the water temp is wrong when it comes to oil temps. - What is wrong with our Syncro electrical systems that it can't hold 14.4V? I even tried the same alternator in both vans and the problem stayed with the Syncro... David Marshall Fast Forward Automotive Inc. 4356 Quesnel Hixon Road Quesnel BC Canada V2J 6Z3 mailto:info@fastforward.ca <mailto:info@fastforward.ca> http://www.fastforward.ca <http://www.fastforward.ca> Phone: (250) 992 7775 FAX: (250) 992 1160 • Vanagon Accessories and Engine Conversions • Transporter, Unimog and Iltis Sales • European Lighting for most Audi and Volkswagen models
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf Of Dennis Haynes Sent: August 31, 2001 9:20 AM To: vanagon@GERRY.VANAGON.COM Subject: Re: VDO Gauge Guru
The cylinder head temp gauge works by the wires actually generating a small voltage when heat. That is why the can not be changed at the spark plug end. The oil temp gauge uses an RTD (resistive temperature device). Normal wiring methods will work fine. Just make sure all connections, particularly any grounds are clean and tight. What range of readings are you getting? Head temps to 450 and oil temps to 270 are not uncommon. I do agree that these are not acceptable but I have seen these readings often. Dennis
-----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com]On Behalf Of Stan Wilder Sent: Friday, August 31, 2001 9:17 AM To: vanagon@GERRY.VANAGON.COM Subject: VDO Gauge Guru
I recently installed a set of VDO gauges and I've had some minor inconsistencies on information. The VDO cylinder head temp says *Don't shorten the wire in the kit". I'll go along with that. There is also a wiring installation kit for the VDO oil temp kit (I didn't buy) and I was wondering if the oil temp was as critical as the cylinder head temp as to the actual wire used to activate it. I'm using standard automotive wiring for the oil temp gauge, I'm not liking the high readings I'm getting and I'm certain that they are currently incorrect. Stan Wilder 83 Aircooled Westfalia Still looking for that rear bumper........ ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. |
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