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R1150R Fuel tank vent and drain hoses

bthreatt

New member
Last year after replacing the fuel filter I also had to clean out the drain line as it was corroded clogged. When I put it back together, I was sure to send the drain hose to ground (I could blow air through the hose and it came out the hole in the top of tank under the cap). Now, though, the tank builds up pressure. It never did this before, and I think the hoses were switched from when I bought it as I always marked them when I changed a filter. SO, the question is, is there a diagram of the hoses on the charcoal filter so I can check that they are correct? I think either the charcoal filter is clogged, or hoses are not correct on it causing the pressure buildup. Is there any reason or issue with running the vent hose to the ground as well as the drain? Any other suggestions?
 
The drain at tank filler def goes to ground, the one inside tank goes to canister if there.When cap closed I do not think fuel can get to the top drainhole, so not venting tank. The in tank vent can cause the issues.


An old thread from Internet BMW Riders with rough sketch

http://www.ibmwr.org/original/r-tech/oilheads/cannister_horn.shtml#Cannisterectomy Parts

You tube Chris Harris video , colorful commentary . :brow

https://youtu.be/H907BjGC0Pc

I neither condone nor disapprove of this procedure :whistle

Also, at bottom of page will be some Similar Threads
 
Removed the canister and when air is blown through either outer fitting it comes out the other, but the middle fitting is corroded and clogged.
 
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