Retired Wrencher 4,891 #1 Posted January 11, 2015 this a 1977 B-80 it was running a week ago.there was a leak from the inlet side of the fuel pump so I loosened the pump so I could screw in the fitting now I get no fuel to carb I know it is to ride on the cam but where?? I tried it a couple times but it does not pump fuel. any info on this or a pick showing it makes contact with the cam would be helpful. I see the wear marks underneath but none on cam. is it to on top of stroke where the cam is at the heist?? thanks Gary. Share this post Link to post Share on other sites
Martin 2,130 #2 Posted January 11, 2015 Gary, are you sure all air is out of it? it wont pump any gas with air in the pump or line before. pressurize the line before by putting a plunger over the tank filler or doing it the old fashioned way by blowing in there with your mouth to force gas (and any air) through to the pump. if the pump is ok it will start working as soon as you get that air out of there..... Share this post Link to post Share on other sites
Retired Wrencher 4,891 #3 Posted January 11, 2015 Gary, are you sure all air is out of it? it wont pump any gas with air in the pump or line before. pressurize the line before by putting a plunger over the tank filler or doing it the old fashioned way by blowing in there with your mouth to force gas (and any air) through to the pump. if the pump is ok it will start working as soon as you get that air out of there..... not following u Martin = pressurizing so when I loosen it up the pump I lost pressure?? When I pump on the arm I feel a slit wind. I hear it working. Share this post Link to post Share on other sites
Martin 2,130 #4 Posted January 11, 2015 You didn't loose pressure, you let air into the line and/or pump. You need to force the air out of the line and/or pump and by using pressure at the tank is the way to do it Sent from my iPhone using Tapatalk Share this post Link to post Share on other sites
Retired Wrencher 4,891 #5 Posted January 11, 2015 You didn't loose pressure, you let air into the line and/or pump. You need to force the air out of the line and/or pump and by using pressure at the tank is the way to do it Sent from my iPhone using Tapatalk so your saying blow into tank?? Share this post Link to post Share on other sites
buckrancher 2,675 #6 Posted January 12, 2015 are you on the top of the cam? Share this post Link to post Share on other sites
Retired Wrencher 4,891 #7 Posted January 12, 2015 are you on the top of the cam? thanks Guys I am going to try tomorrow. will let u know. Share this post Link to post Share on other sites
