Surge Tank Pressure Cap
#1
Surge Tank Pressure Cap
As part of some investigation I have been doing on rough running and temperature anomalies, I noticed today that when I release the pressure cap on the surge tank there is definitely zero pressure built up in there even when the car is hot 195F.
This might explain a lot but before I order the new one, do your XJ6's let out pressure from this cap when the car is hot?
As I said, there is zero pressure in mine.
Cheers
Bernie
This might explain a lot but before I order the new one, do your XJ6's let out pressure from this cap when the car is hot?
As I said, there is zero pressure in mine.
Cheers
Bernie
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I have never had trouble taking my cap off for a peek while it is at operating temp.
I first squeeze the large hose to get an idea of the pressure.
It does does have a swoosh sound and I turn it slowly.
Now on a hot day, with fans running, I may wait till cools down.
So - when you say no pressure - do you mean you "hear" no air coming out as you take off the cap -- or you "feel" no pressure/tightness on the hose?
I first squeeze the large hose to get an idea of the pressure.
It does does have a swoosh sound and I turn it slowly.
Now on a hot day, with fans running, I may wait till cools down.
So - when you say no pressure - do you mean you "hear" no air coming out as you take off the cap -- or you "feel" no pressure/tightness on the hose?
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