The past week I've been going through the new to me 05 LT doing all the maintenance. I've replaced every fluid, but the fork fluid, and changed every filter. I was very pleased that the valves after 11,000 miles were all in correct spec. I found no stripped out holes, or broken fairing tabs and everything went smoothly for the most part. But when I went to replace the fuel filter I discovered that the short piece of hose connecting the filter to the pump had begun to deteriorate to the point that I didn't want to just fit the new filter and hope for the best. The elbow shaped hose also had some cracking but not as bad as the short hose. Now had I know that the hoses would have been in bad shape, I would have pre-ordered a new ones from BMW before I opened up the tank. So not wanting to keep the LT dissembled in the garage any longer than absolutely necessary, I decided to try and find a section of actual submersible fuel hose somewhere in the Phoenix area, but no luck with that. So I ordered a piece of Gates 27093 5/16th inch submersible hose off Ebay from a guy in TX. But when the hose finally arrived a few days later I found that the hose he sent is blue with no writing on it and it's 3/8 inch. I don't think it is even made by Gates
. Well that was a bummer, because I thought that I would just have to keep the bike disassembled for another week or so while I ordered the new hose from BMW. Then I remembered that I had a complete fuel pump assembly in the shed that fits my Moto Guzzi Norge.
On this assembly there is a corrugated hard plastic hose that connects the filter to the base plate and a shorter plastic hose that connects the filter to the pump. So I go get the assembly and sure enough the hoses are the right size. Now the nice thing about these non-rubber hoses is they will not deteriorate like the OEM rubber ones and because the long hose is corrugated it does not kink when bent. The hoses also have the strange trait that even though they are hard, they still stretches a bit to go over the expanded sections of the nipples on the pump and filter and then contract to fit snugly over the non-expanded section of the fittings. The hoses are secured with OEM style Oetiker clamps that are 11.3 mm in size. I get them from this company http://www.ebay.com/itm/150605685330...84.m1497.l2649
. This is the hose that BMW should have used when they started putting the fuel pump assembly inside the tank.
The long piece of hose you see in the picture has a 3 inch section right in the middle that is not corrugated, which allows the hose to be cut into two useable sections to be fitted into two separate fuel pump assemblies. The short piece of hose in the picture that connects the fuel filter to the pump just so happens to be about the same length as the small rubber hose on the BMW assembly.
Guzzi didn't get it 100% correct as well. You'll notice the half plastic fuel filter in the picture. The plastic part swells and becomes rubbery, and can separate from the metal part of the filter, which when it happens will leave you stranded on the side of the road. One of the things that a new Guzzi owner does is change out the OEM fuel filter to an all metal one ASAP.
Now I have no idea what Guzzi wants for these hoses but it couldn't be much more than the prices BMW charges for the rubber ones. And if you have a friend you could both split the cost since the long hose will make two correct size hoses for the BMW pump assemblies.
Sorry I didn't get a chance to take a picture of my BMW pump assembly with the Guzzi hoses before I installed it back in the tank.