fpr mod? - Ford Powerstroke Diesel Forum
 
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post #1 of 4 Old 07-23-2009, 12:50 PM Thread Starter
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fpr mod?

I am going to do the fpr mod. I dont have a gauge for it yet.
Is their an amount of shim I can do thats going to help but be with in the safe range of pressure with out the gauge to accurately tell me?
I read on one thread a guy used a 4mm allen head bolt cut it short and ground the head to .075 for a thickness and inserted the threads into the spring a bit. Not much to bottom out but just enough to hold it straight?
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post #2 of 4 Old 07-23-2009, 04:14 PM
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Look in the tech threads. Dont do this mod until you have a fuel pressure gauge. Youll thank me later.

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post #3 of 4 Old 07-23-2009, 04:43 PM Thread Starter
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can i hook a gauge to the drain valve as on a thread i saw? he hooked it up to that andopene the valve. When he got it where it was needed he removed the gauge but close the valve?
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post #4 of 4 Old 07-23-2009, 05:34 PM Thread Starter
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the tech thread was it for gauge install? i did not see one for the shim (fpr mod)
thx
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