Rockrunner Posted August 10, 2013 Author Share Posted August 10, 2013 Where do I attach the fuel pressure gauge and where will I find the spring and ball it doesn't look like it comes apart. Quote Link to comment https://www.bigmacktrucks.com/topic/32112-non-electric-mack-engine/page/2/#findComment-199121 Share on other sites More sharing options...
br549 Posted August 11, 2013 Share Posted August 11, 2013 That spring is in the valve on the bottom left in the last picture. It is below #1 injector line the valve that has a braided hose and a 1/4 plastic line going to it. I think it takes a 3/4 wrench and a 7/8 to remove it, be careful don't loose the ball and hat. WE take a #6 fitting and drill a 1/8 pipe thread in it and put a line and guage on it and put it where the line going into the pump for checking fuel pressure. Quote Link to comment https://www.bigmacktrucks.com/topic/32112-non-electric-mack-engine/page/2/#findComment-199227 Share on other sites More sharing options...
Rockrunner Posted August 14, 2013 Author Share Posted August 14, 2013 Worked on it a little the weekend got the #5 delivery valve out of the injector pump it is stuck and looks rusted in side send it off to get replaced then will move onto fuel pump Quote Link to comment https://www.bigmacktrucks.com/topic/32112-non-electric-mack-engine/page/2/#findComment-199822 Share on other sites More sharing options...
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