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  1. J

    5.7L EFI Tune Up

    5.7L EFI GM 350 V-8 1998/0L010035_0L325976 What parts should I need for a tune up? What standard checks should be done? Thanks in advance for you help.
  2. J

    Cooling system, Model: 5.7L EFI GM 350 V-8 1998

    I have a sea water cooling system. Testing the fuel pump replacement running on muffs i began to over heat. I shut the engine down, I checked and saw that no water had been expelled with the exhaust, the out put side of the water pump had water in the hose, I tapped the thermostat housing with a...
  3. J

    Fuel Pump testing

    I got the gauge and other materials as outlined in the instructions for testing your fuel system. I went down to the boat ready to pull off the fuel line from the engine side of the fuel water separator and found the line to be connected directly to it. Can anyone list the specific sizes of...
  4. J

    Merc 5.7 loss of power and clicking

    Last night running around 3300 rpm up the river to pick up some friends for dinner I heard some clicking and had a sudden loss of power. I looked under the hatch and she was idling fine, I got her back up on plane and ran around 20min in and 2 30min runs to dinner and drop the friends off with...
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