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Thread ID: 56650 2005-04-11 10:38:00 OT - BMW Motorcycle Fuel Tank Winston001 (3612) PC World Chat
Post ID Timestamp Content User
343741 2005-04-11 10:38:00 Thought I'd return to the Brass Monkey this Queens Birthday. So I'm trying to get my trusty motorbike going. It has been sitting in a shed for 9 years.

I cannot get the fuel tank cap off. It is a clever screw-in design, which is locked with a key. I've unlocked it but it will not unscrew.

I'm guessing it has corroded on the thread. I've doused the cap with CRC but no joy so far. Apart from that, I'm stumped. Looks like a mechanic will have to drill into the cap and somehow force it to turn.

Any lateral thinkers out there?
Winston001 (3612)
343742 2005-04-11 10:46:00 A good Stilson wrench and a ball hammer or long extension handle, either the cap gives or the tank does. the highlander (245)
343743 2005-04-11 10:48:00 Try heating the cap, no not with a blow torch, try scalding hot water. It may expand the cap a bit before the heat soaks through to the tank. Terry Porritt (14)
343744 2005-04-11 11:00:00 9 years?

For a start it needs new tires then, You will die or at least get pretty badly hurt when they let go,...( Having said that I had a front tire blow on me coming down the hell into TeKuiti at a reasonable speed and managed to live,though after getting the tire fixed the next day I managed to fly off a 50k corner at 120k,do 30 odd feet of cartwheeling then crash into a wire fence which wrapped around me and deflected me in another direction...prickly bushes,....HA.....lying there all messed up and the search party were looking where i should have landed,not where i was......Had to stand up and walk out.......Though I did get to lie down soon enough in the ambulance....


Damn,where was i...


Oh yeah, 9 years is too long,get it fully serviced by a competent mechanic.
Metla (12)
343745 2005-04-11 11:42:00 www.kiwibiker.co.nz
Someone there is bound to know just the thing....
(aside from the screwdriver suggestions etc etc...
Curious George (3535)
343746 2005-04-11 20:23:00 ah ha Metla that could explain a few things, but you are right 9 years is too long not just for the tyres but all the fluids and bushes get brittle the list goes on plod (107)
343747 2005-04-11 21:01:00 We wish to continue reading your prose,so please do all of the above. Cicero (40)
343748 2005-04-11 21:14:00 Cold Kiwi is more fun

But I had the same thing happen to my beloved R80R and yes it took a drill and a mechanic, but you have already unlocked yours so maybe a hot water and vice grips (as already suggested) will work.
Another good suggestion get it serviced, but BMW's (at least the two wheeled type) are bullet proof, but after nine years.............................
beama (111)
343749 2005-04-11 22:24:00 Have fun Winston - hope you manage to get it going and get away.

I cannot add anything to the suggestions about gettting the cap off, except to say if you are going to heat it, I would disconnect the fuel line(s) from the tank and make sure the taps are turned on. Oh, I also wear a belt and braces if you think this is overly cautious... :o

However, whilst I agree with the other people's gratuitous advice (!) about what else needs doing to your trusty steed (assuming perhaps that you weren't going to do those things anyway!) - another bit of gratuitous advice. My bike had a lay up of over two years after my last smash, and I sent it in to the agent to be rehabilitated (the actual damage had been fixed straight after the smash and it had just sat under a cover after that for aforesaid period).

The agent's mechanic said there were two things other than the tyres to check, and these were:
1. hydraulic brake lines for perishing or other deterioration
2. the entire fuel system, because when petrol sits around for a long time it becomes jelly like and it blocks the system at various places.

Offered for what it is worth. Of course your Beamer may not be modern enough to have hydraulic brake lines. Maybe you have to put your feet down to slow down :D
John H (8)
343750 2005-04-11 22:35:00 That is all helpful. The main problem is that the fuel cap is flush with the top of the tank - otherwise a stilson would be ideal. Hot water is a good thought but concentrating it on the spot is tricky.

I agree that taking it to a mechanic is sensible. But I'll give it a couple more trys and check out kiwi.co - been looking for a local m/c forum.

Ta guys.
Winston001 (3612)
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