I don't think so, Bob...
Look again, the tube equalizes the tanks but tee's in inside the
cap. There is a small hole inside the cap and that vents it
to the outside air. If the hole gets plugged (or if there IS a
defective valve or something inside the cap) you have a sealed system.
Add hot sun and you could build up ALOT of pressure in the tanks.
Gary
On Sun, 21 Feb 1999 18:18:30 -0800 Bob Palmer <rpalmer@ames.ucsd.edu>
writes:
>Jim, et LIsters,
>
>Probably most of you know that the vent for the Tiger gas tank is a
>tube
>that tees off the main hose between the gas cap and the right side
>saddle
>tank. No need to modify the cap if this vent hose is working properly;
>i.e., not plugged, bent, folded, spindled, or mutilated.
>
>Bob
>
>At 08:02 PM 2/21/99 -0500, James Barrett wrote:
>>At 12:45 PM 2/21/99 -0700, you wrote:
>>>
>>>I know a Tiger owner who drove home (several miles) with his fuel
>pump kill
>>>switch switched off! Seems the afternoon sun had warmed everthing
>enough to
>>>create a little pressure in the fuel tanks. The pump wasn't needed.
> I
>>>still think the switch is a good idea.
>>> --Bob Burruss
>>>
>>Bob,
>> Back in the early 1970 I filled up my Tiger II with
>>gas and then went to work. It warmed up that day and
>>at 5:00 I hit the key to go home. Well, the starter would
>>not turn the motor. I checked under the hood and smelled gas.
>>Checked the oil and it was indicating oil at the top of the dip
>>stick. The pressure relief valve (if any) in the gas cap
>>had failed and filled the cylinder(s) and crankcase with
>>gasoline. Had to drain the oil/gas right there and refill with
>>new oil. The motor turned over after a few more tries.
>>I drilled a small vent hole in the interior of the gas cap
>>and haven't had that problem since. That was the first
>>modification to my Tiger II and I haven't stopped yet.
>> Still do not know if there is a valve in the
>>gas cap. Would have to to distroy the pot-metal rivets to get
>>the cap apart.
>>James Barrett Tiger II 351C and others
>>
>>
>
>Robert L. Palmer
>Dept. of AMES, Univ. of Calif., San Diego
>rpalmer@ames.ucsd.edu
>rpalmer@cts.com
>
|