I would certainly get a new cap before driving it much. I inadvertently put a non vented cap on my brand new tank & all 4 corners imploded due to the negative pressure. Tank ruined. Lindsey in Winnipeg ----- Original Message ----- From: Larry Jabin <larry@xxxxxxxxxx> Date: Monday, March 5, 2012 9:54 am Subject: RE: [Chrysler300] 1958 300d gas cap To: Ron Waters <ronbo97@xxxxxxxxxxx> Cc: "Chrysler300@xxxxxxxxxxxxxxx" <Chrysler300@xxxxxxxxxxxxxxx> > Hi Ron > > The cap is vented it has a small flap type valve that only seems > to let air in the tank but not out. > Should the valve let air go in & out? > > > Larry > > -----Original Message----- > From: Ron Waters [mailto:ronbo97@xxxxxxxxxxx] > Sent: Monday, March 05, 2012 4:10 AM > To: Larry Jabin > Cc: Chrysler300@xxxxxxxxxxxxxxx > Subject: Re: [Chrysler300] 1958 300d gas cap > > Larry - > > When a gas cap is vented, it means that there is a small hole in > the cap to equalize pressure between the inside of the tank and > the outside. It is > *critical* that you have a vented cap. Please verify this. If > the cap doesn't specifically say Vented on the front, then > replace it. > > Another thing you should check is that the gas tank filler tube > has the 'notch' facing toward the top. > > Ron > > > ----- Original Message ----- > From: "Larry Jabin" <larry@xxxxxxxxxx> > To: <Chrysler300@xxxxxxxxxxxxxxx> > Sent: Sunday, March 04, 2012 11:27 PM > Subject: [Chrysler300] 1958 330d gas cap > > > > Yesterday after driving my car about 50 miles I removed the gas > cap & there > was a big swoosh of air going INTO the tank > The tank was about ¼ full > The cap is vented but I guess the vent must have stuck closed so > I tried to > clear with air pressure > > Today I drove the car again it was a great day temp in the > low 70s > But when I removed the cap after driving it for a while > This time another big swoosh of air but coming OUT of the tank > So somehow the tank was creating pressure > > I would drive it 20 miles & check it again , same thing a couple times > > > Has anybody experienced this > > Also is the vented cap supposed to release pressure both ways in > & out? > > Also where can I purchase a correct cap? > > Thanks > > Larry Jabin > > San Francisco CA 94111 > > Larry@xxxxxxxxxx<mailto:Larry@xxxxxxxxxx> > > > > [Non-text portions of this message have been removed] > > > > ------------------------------------ > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > To unsubscribe from this group, send an email to > bob@xxxxxxxxxxxxx or > go to http://autos.groups.yahoo.com/group/Chrysler300/join and > select the > "Leave Group" button > > For list server instructions, go to > http://www.chrysler300club.com/yahoolist/inst.htm > > For archives go to > http://www.forwardlook.net/300- > archive/search.htm#querylangYahoo! Groups > Links > > > > > > ------------------------------------ > > To send a message to this group, send an email to: > Chrysler300@xxxxxxxxxxxxxxx > > To unsubscribe from this group, send an email to > bob@xxxxxxxxxxxxx or > go to http://autos.groups.yahoo.com/group/Chrysler300/join and > select the "Leave Group" button > > For list server instructions, go to > http://www.chrysler300club.com/yahoolist/inst.htm > For archives go to http://www.forwardlook.net/300- > archive/search.htm#querylangYahoo! Groups Links > > > > [Non-text portions of this message have been removed] ------------------------------------ To send a message to this group, send an email to: Chrysler300@xxxxxxxxxxxxxxx To unsubscribe from this group, send an email to bob@xxxxxxxxxxxxx or go to http://autos.groups.yahoo.com/group/Chrysler300/join and select the "Leave Group" button For list server instructions, go to http://www.chrysler300club.com/yahoolist/inst.htm For archives go to http://www.forwardlook.net/300-archive/search.htm#querylangYahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Chrysler300/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Chrysler300/join (Yahoo! ID required) <*> To change settings via email: Chrysler300-digest@xxxxxxxxxxxxxxx Chrysler300-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: Chrysler300-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/