Join Date: Dec 2006
Location: Oak Park, Ventura county (Los Angeles), CA, USA
How evil is Ethanol in our fuel?
I just took my 99 LT apart to change the fuel pump (new BMW pump installed in 2006) it had died from unknown causes... not being ridden most likely. I had the fuel pump out in 2013 to change a split in tank fuel hose and did not see the damage I saw this time. (I installed a New Quantum HFP-439, open box $45.00 ebay)
The wiring to the fuel pump on the bracket / holder had almost all of the insulation falling off and in specs inside the fuel tank.
I cut the positive wire one inch from the pump terminal and slid 3M shrink wrap over the exposed wire, then soldered up the wire, slid a larger diameter section of shrink wrap over the joint and shrunk that.... the ground wire I left naked/exposed. Put it all back together and it fired right up.... now the brakes don't work, nothing at the rear, the front works if I pump it a LOT.
Also the rubber seal ring had a spongy/gooey area as did the rubber that supports the bottom of the fuel pump inside the plastic mount.
20 years or new fuel the cause?? what have others seen when changing a fuel pump lately??
Bruce - pilot, Belynda - pillion
Oak Park, CA.
'99 K1200LT Champagne, 28,500mi
'04 R1150R Silver, 18,900 mi
'12 R1200RT Beige, 28,400 mi (sold 4/19)