Fuel pump noise
#52
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
Hope this helps... there's a right way to do it. All the best.
https://youtu.be/15UIGXSzhbs?si=TeYqAdgaY5reMYVu
https://youtu.be/15UIGXSzhbs?si=TeYqAdgaY5reMYVu
Video's unavailable, any other links to it?
#53
The following users liked this post:
silverbulletking (06-29-2024)
The following users liked this post:
silverbulletking (07-03-2024)
#55
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
This data point supports the theory that the root cause is that the filter plugs with gunk and the pump then burns up. If the pump starts making noise again I will post an update. For now I suggest that if YOUR pump starts this noise put some fuel cleaner in it and see if it goes away! Seafoam would be ideal but get whatever you can if it is not available.
The following users liked this post:
North of You (07-04-2024)
#56
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
Update: I read through this and other forums, then YouTube. I picked up on the idea that it may be gunk causing this. I stopped at a truck stop and bought the only fuel cleaner they had; CAM2. I put the recommended amount in the tank and filled it with fuel and started off on the day's adventure on forest roads. Other than the 1/2 inch of rain last night making it a muddy mess, I made it through 159 miles of beautiful forest. On the way back to camp I stopped at a scenic overlook and when I restarted the noise was gone! I will keep treating it until the bottle is used up now. I have 300 miles to ride home tomorrow so everything should be spotless in there by tomorrow evening.
This data point supports the theory that the root cause is that the filter plugs with gunk and the pump then burns up. If the pump starts making noise again I will post an update. For now I suggest that if YOUR pump starts this noise put some fuel cleaner in it and see if it goes away! Seafoam would be ideal but get whatever you can if it is not available.
This data point supports the theory that the root cause is that the filter plugs with gunk and the pump then burns up. If the pump starts making noise again I will post an update. For now I suggest that if YOUR pump starts this noise put some fuel cleaner in it and see if it goes away! Seafoam would be ideal but get whatever you can if it is not available.
On the long ride home I was thinking about the screech I heard when accelerating right after I changed the tires. Stupid me I thought the Trailmax Missions were doing something weird on hard accel. I realize now it was the first instances of the pump issue. We shall see what I find when I open it up.
In the meantime, the fuel cleaner definitely helped but it is not the cure.
#57
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
Another Update: I got the bike home. The noise is not all the way gone; I can hear the pump singing away when riding at about 45 in 6th. The grinding noise is gone though. So I am ordering a pump tomorrow.
On the long ride home I was thinking about the screech I heard when accelerating right after I changed the tires. Stupid me I thought the Trailmax Missions were doing something weird on hard accel. I realize now it was the first instances of the pump issue. We shall see what I find when I open it up.
In the meantime, the fuel cleaner definitely helped but it is not the cure.
On the long ride home I was thinking about the screech I heard when accelerating right after I changed the tires. Stupid me I thought the Trailmax Missions were doing something weird on hard accel. I realize now it was the first instances of the pump issue. We shall see what I find when I open it up.
In the meantime, the fuel cleaner definitely helped but it is not the cure.
#58
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
Try a few ounces of Marvel Mystery Oil in the gas. Its very good at adding some lube to the gas. If fixed a petcock in my evo years ago, turn off is smooth as silk with some MMO in the gas, May help your pump. I ran some in my new M8 and I don't have a fuel pump problem but I did notice the normal fuel pump noise was less. Wont hurt anything to try it...
#59
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
Update: I have been able to drain my tank and extract the fuel pump assembly, but I cannot figure out how to get the old pump out of the housing! I will play with it again tomorrow but it looks as though the strainer is pressed onto the pump and it is holding it in the housing. These are all plastic parts so trying to wedge them apart seems close to the breaking point. If it breaks I am done. I will give it another go tomorrow.
I tried cleaning the screen with carburetor cleaner and it appears to have no change. In its defense the cleaner sprays right through it so I do not think it is clogged at all. I have ordered a new strainer from H-D and it is supposed to be delivered to my dealer 19-Jul (Quantum does not have strainers for the PA yet). I will post photos and explanations when the new strainer is ready to go. In the meantime I have some aux wiring to tidy and air filter maintenance while the fuel tank is off the bike.
More later.
The following 2 users liked this post by dceggert:
207nappi (07-15-2024),
silverbulletking (07-14-2024)
#60
![Default](https://www.hdforums.com/forum/images/icons/icon1.gif)
I put some WD-40 on the trouble making connection and let it sit overnight. It popped right apart the next morning.
I tried cleaning the screen with carburetor cleaner and it appears to have no change. In its defense the cleaner sprays right through it so I do not think it is clogged at all. I have ordered a new strainer from H-D and it is supposed to be delivered to my dealer 19-Jul (Quantum does not have strainers for the PA yet). I will post photos and explanations when the new strainer is ready to go. In the meantime I have some aux wiring to tidy and air filter maintenance while the fuel tank is off the bike.
More later.
I tried cleaning the screen with carburetor cleaner and it appears to have no change. In its defense the cleaner sprays right through it so I do not think it is clogged at all. I have ordered a new strainer from H-D and it is supposed to be delivered to my dealer 19-Jul (Quantum does not have strainers for the PA yet). I will post photos and explanations when the new strainer is ready to go. In the meantime I have some aux wiring to tidy and air filter maintenance while the fuel tank is off the bike.
More later.
The following 3 users liked this post by dceggert: