1996 R1100R Fuel pump

I have replaced the fuel pump (and filter) from the Beemerboneyard.
At first I was worried that a new pump is noticeably louder. Today, after refueling (so, I've used about 3 gal on the new pump) it was not only whining, but outright rattling.
What did I mess up? Is it the part, or something else?

Thanks

Did you replace the vibration damper?

I do not remember...
Whatever was in the kit, plus filter.

One thing to be careful of when installing is making sure that the fuel pump plate is oriented the right way. It's very possible to mount the plate so that it's angled upwards 60 degrees from where it's supposed to be, which puts the fuel pump inlet above the fuel level on anything but a full tank.

I made this mistake myself the first time I replaced my pump -- it's actually easier to install the pump the wrong way in my fuel tank (which is identical to yours) than it is to install it correctly. You have to fiddle a lot to squeeze the fuel pump and the float into the correct position. When I made this mistake on my bike the fuel pump made a horrendous noise all the time and my fuel light didn't work properly. It was half on all the time.

That pump I installed incorrectly only lasted 50 miles, so you may want to double-check that the plate is in the correct position before you start the bike again.

Seeking help with fuel pump

m_stock10506 said:

Did you replace the vibration damper?

View attachment 85587

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After trying to see if there's a way to check the fuel pump, I noticed the vibration damper is crumbling and falling apart. It was probably due to the fact this bike sat for 6 years with about a half full amount of gas that was ruining everything it touched.

Can this be replaced and how hard is the job to do it?

Also, is the strainer supposed to come off? I can't get it off and I stopped before ruining it.

Is there a way to check the operation of the pump?

Thanks for your help.

alke4346 said:

After trying to see if there's a way to check the fuel pump, I noticed the vibration damper is crumbling and falling apart. It was probably due to the fact this bike sat for 6 years with about a half full amount of gas that was ruining everything it touched.

Can this be replaced and how hard is the job to do it?

Also, is the strainer supposed to come off? I can't get it off and I stopped before ruining it.

Is there a way to check the operation of the pump?

Thanks for your help.

Click to expand...

Yes, the vibration damper is easily replaced - once you remove the gas tank and take out the fuel pump plate - ugh. It just presses on the end of the pump. You have to remove the filter sock.

The strainer/sock is press fit on the end of the pump. Careful placement of a screwdriver tip should let you push the strainer off. Put the damper on, put the pump back into the holder and press the strainer back on.

You say that you have driven through 3 gallons of gas, and the bike is running, so the pump is working. A pressure gauge on the fuel line - in a T fixture - should show about 43 PSI.

m_stock10506 said:

Yes, the vibration damper is easily replaced - once you remove the gas tank and take out the fuel pump plate - ugh. It just presses on the end of the pump. You have to remove the filter sock.

The strainer/sock is press fit on the end of the pump. Careful placement of a screwdriver tip should let you push the strainer off. Put the damper on, put the pump back into the holder and press the strainer back on.

You say that you have driven through 3 gallons of gas, and the bike is running, so the pump is working. A pressure gauge on the fuel line - in a T fixture - should show about 43 PSI.

Click to expand...

No, no, no!! You must have misread my question. I just purchased this non-running bike. I have not driven it at all.

It had sat for 6 years with about a half full tank of gas that I think has ruined the damper causing it to crumble.

When I turn on the key, I don't hear the pump doing the priming. Also, I have the tank off and the fuel pump plate is out of the tank.

Thanks,

Larry

alke4346 said:

No, no, no!! You must have misread my question. I just purchased this non-running bike. I have not driven it at all.

It had sat for 6 years with about a half full tank of gas that I think has ruined the damper causing it to crumble.

When I turn on the key, I don't hear the pump doing the priming. Also, I have the tank off and the fuel pump plate is out of the tank.

Thanks,

Larry

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Aha! Larry, I went to the top of the post and.... you aren't the original poster for this thread. Bad practice, confusion for people who go back later to read posts for answers. You hijacked this post, should have started a new one for yourself.

After six years sitting in stale gasoline, throw the pump in the trash and put in a new fuel pump.

sorry

did not mean to hijack a posting, just thought since the subject had already been discussed, further discussion would be permissible. I'll start a new thread.

alke4346 said:

did not mean to hijack a posting, just thought since the subject had already been discussed, further discussion would be permissible. I'll start a new thread.

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I didn’t intend to sound harsh, I hope it didn’t come through like that.

When you look at the original post and then yours, you’ll see that the issues that each of you have is different. That’s why another post should be started.