XJS ( X27 ) 1975 - 1996 3.6 4.0 5.3 6.0

What is this gauge?

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  #1  
Old 10-23-2022, 09:28 PM
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Default What is this gauge?

I know it’s not factory so why was it installed and what’s it’s purpose?


 
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Old 10-23-2022, 09:44 PM
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Could be a fuel pressure or inline oil pressure gauge. Whats it do when the car is running, and accelerating?
 
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Old 10-23-2022, 09:57 PM
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Looks like fuel pressure, as it's right above the fuel rail
 
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Old 10-27-2022, 03:18 AM
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Fuel pressure would be my thought too
 
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Old 10-27-2022, 02:39 PM
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Always check the feed hose and clamps holding the gauge in. It would be horrible to have fuel burst from one of the ends.
 
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Old 10-27-2022, 02:50 PM
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I'm just thinking that because the needle is set to move anticlockwise, that it's a vacuum gauge tapped off the inlet manifold?

Paul
 
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Old 10-27-2022, 05:18 PM
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That's a very good probability too
 
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Old 10-27-2022, 09:02 PM
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Better call Paul is what I say. Good observation.
 
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