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Resurrection!...gas cap stuck.... (Read 15 times)
Cirj44
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Resurrection!...gas cap stuck....
Yesterday at 15:09:06
 
Hello all,

Finally pulling my 1986 Savage out of storage after about 10 years. It's been garaged its entire life, has just under 13,000 miles, and is in really nice original condition.

I'm removing the tank, but the gas cap won't open. The key turns normally, but the cap won't release. I've tried pushing down while turning the key and gently warming the cap with a hair dryer, but no luck. I don't want to force it and damage the cap or tank.

Any suggestions before I get more aggressive?

Thanks!
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verslagen1
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Re: Resurrection!...gas cap stuck....
Reply #1 - Yesterday at 19:37:45
 
the lock pawls are probably glued in place by gasoline vapors.
I would drip gas in the keyhole until full and leave it for a while.
come back try the key, push down on the cap, wiggle the cap, refill, rinse repeat.
you can try stronger solvents, but acetone will wreck the rubber.
I'd also remove the petcock just let it drip thru.

as an alternate, fill the tank until it's over full, get those pawls wet from the bottom.
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Dave
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Re: Resurrection!...gas cap stuck....
Reply #2 - Today at 04:51:16
 
What Verslagen said....likely stuck from crud on the tabs that lock the cap in place.

If you don't have success with the tank upright - then remove the petcock and drain the old fuel out, then turn the tank upside down with the cap over a 5 gallon bucket with the fuel cap pointing down.  Then carefully put some fresh fuel in the petcock hole and try and get the fuel cap submerged.  There will likely be some fuel dripping out the vent in the cap - if you want that to stop install the petcock or block off the petcock mounting hole and the drip will slow down or stop once a vacuum is created in the tank.  Let is soak for a few hours or days and give the key a try.....setting the tank out in the sun to warm up may help speed up the process
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Cirj44
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Re: Resurrection!...gas cap stuck....
Reply #3 - Today at 11:57:55
 
Thank you verslagen1 and Dave!  Great advice.  

Finally got it off.  The mechanism was apparently OK.  I could feel it (dis)engage.  
I gave it one last try and gently pried the lip of the cap all the way around with a cloth covered screwdriver.  That loosened the seal and light oxidation around the cap base and filler walls.
Tank looks clean otherwise, except for the gallon of 10yo gas I'm draining out.

SUGGESTIONS ON ATTACKING A SEIZED CRANKSHAFT ACCESS COVER?

Thanks Again!!!!!
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