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Date:   Mon, 21 Jun 2004 06:52:25 -0500
Reply-To:   Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Sender:   Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:   Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Subject:   Re: cheap gauges from JC Whitney
Comments:   To: Craig Oda <craigoda@GMAIL.COM>
Content-Type:   text/plain; charset="iso-8859-1"

The response to low oil presssure is to stop the engine before it spins the bearings or blows up. The response to high temperature is to stop the engine and check the coolant or reduce speed and cool down the engine. What is a proper response for low fuel presure? If it gets low enough it will not be starting anyway. Be careful don't let that set of gauges drive your life.

Stan Wilder

----- Original Message ----- From: "Craig Oda" <craigoda@GMAIL.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Sunday, June 20, 2004 6:44 PM Subject: Re: cheap gauges from JC Whitney

> Todd, > good point. I'll put the fuel pressure gauge after the pressure > regulator. You're right. I need to get the same pressure that is > going to injectors, especially since I suspect that the pressure > regulator might be flaky. > > Regards, > Craig > > > On Sun, 20 Jun 2004 11:02:57 -0700, Todd Last <rubatoguy@comcast.net> wrote: > > > > I would think that they would be fine assuming that they are accurate. > > It would be interesting to test them alongside an "expensive" gauge to > > see if there is any difference. > > One thing I have noticed in less accurate gauges is that they play with > > the dial scale and pointer width to conceal the margin of error. > > > > In anycase, I'm wondering if a better placement for the fuel pressure > > gauge would be AFTER the fuel pressure regulator. > > If you put it right after the fuel pump, you'd only see the delivered > > pressure from the pump, not the actual pressure the injectors are seeing. > > right? And you never want to use a mechanical pressure gauge in the > > passenger compartment for fuel pressure. (because of what would happen > > if it leaked) > > > > Todd > > '88 Westy > > > > > > > > Craig Oda wrote: > > > > >I've recently purchased some cheap gauges from JC Whitney. I'm not > > >sure how they''ll perform, but they were cheap and should provide some > > >entertainment during installation one weekend. > > > > > >I bought a electronic oil pressure gauge and sender for $20. This > > >seems suspiciously cheap to me. I plan to use this as a fuel pressure > > >gauge for my injection system. I have a VDO sender and guage for my > > >oil pressure. I was going to get the same gauge and sender for the > > >fuel, but saw this el cheapo set on the Internet. My plan is to put > > >this inline, someplace after the fuel pump, maybe even under the van. > > >I might even take the sender voltage from the line that powers the > > >fuel pump. Does this sound like a reasonable plan? > > > > > > > > >http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId =10101&storeId=10101&langId=-1&productId=218998&mediaCode=ZX&appId=385824 > > > > > > > > >I also ordered this cheap voltmeter for $13. > > >http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId =10101&storeId=10101&langId=-1&productId=218997&mediaCode=ZX&appId=384858 > > > > > >My plan is to use the voltmeter on my auxiliary battery, permanently > > >mounted. I plan to leave it hooked up all the time. Though, I might > > >put a toggle switch on it. Even without a toggle switch, I think that > > >the current draw is so low as to not be a problem... right? I would > > >use switched voltage for the backlight. > > > > > > > > >Finally, I got this $40 air-fuel mixture gauge that I plan to splice > > >into the oxygen sensor and power from switched voltage. > > >http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?catalogId =10101&storeId=10101&langId=-1&productId=221860&mediaCode=ZX&appId=385055 > > > > > >I'd be interested in hearing people's thoughts on these plans. > > > > > >Regards, > > >Craig > > > > > > > > > > > > >


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