2.5TD Boost Pressure? - Defender Source
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  #1  
Old March 22nd, 2015, 06:35 PM
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Adam
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2.5TD Boost Pressure?

I just installed a VDO 15 psi boost gauge and I "T"'d into the pipe running from the turbo to the injector pump...I am seeing just about 7psi before if falls off...I thought I had seen over 8psi for this engine...it's relatively low mileage (83K)...if it is a a few psi low should I adjust the waste gate rod to get a tad more pressure? I am not looking for Porsche 930, but I do want all of the boost I am entitled to.
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  #2  
Old March 22nd, 2015, 08:34 PM
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Richard Ordowich
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My pressure was down that low before I replaced the boost diapragam. Mine had a small pin hole in it.
Now it goes up to 10 and does not drop off. Made a big difference in engine performance. Cheap part and 15 minute fix.
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Old March 22nd, 2015, 08:52 PM
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Adam
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Mine is pretty corroded on the outside so I was thinking that may be a good thing to start with...
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  #4  
Old March 22nd, 2015, 09:35 PM
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John B.
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The workshop manual says 9.3 psi.
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Old March 22nd, 2015, 10:28 PM
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Robert Davis
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You piped into the alda T which is not optimal.
You need to plumb into the inlet manifold.
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