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Old 10-06-2011, 09:37 PM   #1
vlvman
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Default Simple K-jet Pressure Testing.

This thread will show how to test k-jet pressures without special equipment, the low down dirty way.

First tee in a gauge somewhere between the fuel pumps and the fuel distributor.



I would now recommend doing this between the filter and the fuel distributor. You can also use a spare banjo fitting on the inlet side of the fuel filter in the same way I did below on the CPR.

Using a bolt the same thread size, only longer than the larger control pressure regulator banjo bolt, from your local bolt supplier. Cut two grooves down the sides of the new bolt. I used a dremel tool to cut the groves in the bolt






Now using a spare banjo fitting of the same size, (larger one on CPR). Leave about two inches of the original plastic line on the banjo fitting. Use fuel injection hose to connect the banjo fitting to a gauge. Gauge should read at least 60 psi.




The following photos show how to connect the gauge to the CPR.





Do not froget the copper sealing washers. And installed on the car.






Now start the fuel pumps and check control pressure asap, this will be the cold control pressure at current ambient temperature.

And control pressure after CPR has warmed up.


And the other gauge shows line pressure.


And rest pressure after stopping the fuel pumps.


The gauges side by side.


And a lame photo of the car.
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Old 10-06-2011, 10:15 PM   #2
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Quick photo of the other car in the garage.
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Old 10-06-2011, 11:15 PM   #3
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nice, dont know how long if trust an a/c gauge and a tire pressure gauge...i would think they would be ok for fuel cause it should be copper bladders inside, but still, lol...very creative
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Old 10-06-2011, 11:17 PM   #4
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Temporary, remove after testing.
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Old 10-06-2011, 11:52 PM   #5
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Thank you this clears up things a lot! thank you !
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Old 10-06-2011, 11:59 PM   #6
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It shows where the pressures are, once you know where to find them it gets a lot easier.
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Old 10-07-2011, 12:18 AM   #7
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Hey very nice , when can I bring my car over for a pressure check ? I only live in saint Louis , not far . But I have low rest pressure on hot engine so I must replace the fuel pump check valve . And then bring it over ? Hopefully soon ... Ron in the Bad STL lol .. or do you ever get to this side of the state ?
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Old 10-07-2011, 12:26 AM   #8
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Quote:
Originally Posted by powerstroke4you View Post
Hey very nice , when can I bring my car over for a pressure check ? I only live in saint Louis , not far . But I have low rest pressure on hot engine so I must replace the fuel pump check valve . And then bring it over ? Hopefully soon ... Ron in the Bad STL lol .. or do you ever get to this side of the state ?
We could get together some weekend. I don't get to STL much since the Warranty ran out on the S60.
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Old 10-07-2011, 01:05 AM   #9
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sounds like a plan thanks
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