Compression Ignition Addict
Join Date: Dec 2007
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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?