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>From: JonesVWs@aol.com
>I leave mine attached permanently...I figure if your running 25 year old FI,
>it's a good idea to have it there when the FI starts acting up. I have a '74
>914 2.0 that has had the same gage on it for 7 years. Now all my FI VW's have
>these gages....for about $10 each.
I really don't recommend this be left in place. It's just one more thing to
leak, and low fuel pressure is a very rare problem.
For most people it is probably nice to have a cheap way to test your fuel
pressure and I encourage people to do their own work, but you should
understand that the accuracy of most pressure gauges is specified as a % of
full scale reading, Since a typical accuracy of a "good" gauge is 3% this
means that a good 100 psi gauge is only good to +/- 3 psi. That's a lot of
error at 30 psi, and that's for a much better gauge than you can buy for
$6-10. I use a 30 psi Marsh gauge.
If you want to use one of these gauges for relative radings, then fine.
You'll probably be better off ignoring the scale numbers; just watch the
changes.
Jim
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Melissa Kepner Jim Adney
jadney@vwtype3.org jadney@vwtype3.org
Laura Kepner-Adney
Madison, Wisconsin
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