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Old 05-24-2003, 07:03 AM
1973 450SL 117.982 107.04
Join Date: Feb 2003
Posts: 53
Question Fuel Pressure Regulator Adjust

I replaced the fuel filter and cracked lines from the gas tank and when I checked the fuel pressure it had jumped to 41 psi, I was able to bring it down but it took about 7 full turns and now the engine hunts and misses when driven, is this many turns normal my book says a slight turn should change this but I need to turn quite a bit to get it to move, any ideas? What would cause this jump?
450 SL
Engine: 117.982
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