Bobby Covert Posted November 21, 2012 Share Posted November 21, 2012 With the much appreciated help from David Smith we tried to get my B 615 going today.We put on a new primer pump , she cranked with weak batteries but would not start. How can I make sure the new pump has not allowed air in the fuel ilnes. Or how do you get it out? The engine is a endt-675 (237 maxidyne) The new primer pump has a spring on it so I can't feel the increased pressure as I repeatedly pump it. Any help is appreciated. Thank You ,Bobby Quote Link to comment Share on other sites More sharing options...
hatcity Posted November 21, 2012 Share Posted November 21, 2012 Crack an injector while pumping. That will expell any air.Tighten as you pump so you don't get air back in. Quote Success is only a stones throw away.................................................................for a Palestinian Link to comment Share on other sites More sharing options...
Mike Posted November 21, 2012 Share Posted November 21, 2012 I would want to know first if it is getting fuel to the pump then do as hatcity suggests. But needs batteries charged up for the next round of cranking as you know.mike Quote Link to comment Share on other sites More sharing options...
Bobby Covert Posted November 21, 2012 Author Share Posted November 21, 2012 Thank you for your help! I figured how to post pictures again! Quote Link to comment Share on other sites More sharing options...
rsb502 Posted November 22, 2012 Share Posted November 22, 2012 best way to make a Mack start with air in the lines, which you did get in there if you cracked the fuel system anywhere, is to crack the injector lines at the injector on 4 injectors, as someone cranks someone else watch for fuel to spurt out and tighten the injector lines as you get fuel to them, when it tries to start stop cranking,you should have all 4 "wet" tighten the restof the injectors then crank the engine with about half throttle on the pedal itll start. Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment Share on other sites More sharing options...
Lmackattack Posted November 23, 2012 Share Posted November 23, 2012 Don't forget to hold it At full throttle when cranking with the injector line cracked open. This will help suck up the fuel faster. Quote Link to comment Share on other sites More sharing options...
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