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03-06-2013, 07:26 PM
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#1 |
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Registered User
Join Date: Jul 2012
Location: Super South, Texas
Posts: 173
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Dear Gas Cap,
You looked so bright and shiny when I pulled you out of that box the other day. You are doing a good job of keeping gas from sloshing out when I make right turns and you look really good on the outside of that shiny red truck.
But why, WHY, do you let the inside of my pickup smell like the inside of a gas can on a sunny day? I made sure you were the vented type when I picked you and I can make your seal crack just blowing on you... yet on a hot day when I smell gas and I remove you from the filler neck - there is so much pressure that it almost blows you out of my hand! I think I'll ask my friends on the internet if they've ever seen other gas caps like you and what they did if they have. Smelling the fumes, stexag |
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03-06-2013, 07:32 PM
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#2 |
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Registered User
 
Join Date: Feb 2012
Location: Pikeville, NC
Posts: 144
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Re: Dear Gas Cap,
Remove tank from cab, and replace with a Boyd welding tank under the bed. Problem solved forever.
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03-06-2013, 07:33 PM
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#3 |
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Watch out for your cornhole !
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: Dear Gas Cap,
I don't do underbed tanks so my path has always been to repair stock stuff.
I've had excellent luck with Stant brand gas caps which come in the blue and yellow box. Posted via Mobile Device |
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03-06-2013, 07:39 PM
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#4 |
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Registered User
Join Date: Feb 2012
Location: Pikeville, NC
Posts: 144
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Re: Dear Gas Cap,
Are you sure its the cap? If it's the original tank I have seen many have very small pin holes that expand on hot days allowing fumes out. Just a thought.
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03-06-2013, 07:43 PM
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#5 |
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Registered User
Join Date: Jun 2010
Location: Upland Ca
Posts: 4,147
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Re: Dear Gas Cap,
Probably just the rubber hoses, old and cracked, allowing fumes to escape with all that pressure. As for your "vented" cap, it's defective.
__________________
1972 C10 SWB, Air, PS, PB, 350/350THM. Second owner. 1965 Corvette roadster, 44K miles, 327/365 SHP, 4 speed, side exhaust, knockoffs, teak, second owner (bought in 1970), Have ALL numbers matching components. My frame off restoration thread: http://67-72chevytrucks.com/vboard/s...d.php?t=556703 |
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03-06-2013, 07:46 PM
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#6 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Dear Gas Cap,
are we supposed to guess what type year and model vehicle you r talkin???
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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03-06-2013, 07:52 PM
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#7 |
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Registered User
Join Date: Jul 2012
Location: Burleson Texas
Posts: 570
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Re: Dear Gas Cap,
I agree, get the fuel out of the cab. However I had a Stant cap as well that worked perfectly.
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03-06-2013, 08:01 PM
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#8 | ||
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20' Daredevil (Ret)
Join Date: May 2003
Location: Jefferson State
Posts: 13,722
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Re: Dear Gas Cap,
Quote:
Quote:
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- Mike - 1972 K20 LWB 350/350/205 RIP El Jay |
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03-06-2013, 08:35 PM
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#9 |
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Senior Member
Join Date: Jan 2003
Location: daytonabeach
Posts: 22,956
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Re: Dear Gas Cap,
r u sure thatu got a vented cap??
if you went and asked for a 71 or 72 chevy gascap the proper factory one is a nonvented gascap as those years vented the tanks thru the charcoal cannisters to the carb
__________________
71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY |
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03-06-2013, 09:17 PM
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#10 |
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Registered User
Join Date: May 2012
Location: Eastern, NC
Posts: 429
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Re: Dear Gas Cap,
I'm going through the same thing. Found out the vent line that is suppose to go to the charcoal cannister was cut, plugged and the cannister missing. Also my hoses in the cab needed to be replaced. Needless to say I'm getting a Boyd tank.
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03-06-2013, 10:24 PM
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#11 |
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Registered User
Join Date: Jul 2012
Location: Super South, Texas
Posts: 173
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Re: Dear Gas Cap,
The truck is a '69. It doesn't have the vapor handling tubes on it. In fact the tank is a brand new replacement. When I started working on the truck I smelled gas and thought about a Boyd but got high centered on where to fill it at. Well, I screwed up and bought a new factory replacement tank. Put in the sending unit and ran steel line out of the truck so there's no rubber inside. The cap came in the yellow and blue box. If I press it to my lips and blow it I can overcome the spring and get air through it. I guess that is more than the tank can do though. I'm thinking of putting a toothpick in there to hold the vent part open and see what happens for a day....
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03-06-2013, 10:34 PM
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#12 |
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Registered User
Join Date: Dec 2003
Location: Yakima,WA.
Posts: 150
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Re: Dear Gas Cap,
Something is wrong with your vented cap.
__________________
Mark 67 c20 custom camper 55 Olds 2dr hardtop 96 mustang 11 dodge nitro |
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03-06-2013, 10:39 PM
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#13 |
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Registered User
Join Date: May 2011
Location: Long Island NY
Posts: 787
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Re: Dear Gas Cap,
brand new stant cap here. leaked and stunk! In the garbage it went. Put my original back on that was still in decent shape and no problems. Most of these parts just aint what they used to be! Maybe you just got a bum cap.
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03-06-2013, 10:40 PM
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#14 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,414
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Re: Dear Gas Cap,
I have a 70 with the charcoal cannister, so do I have a non-vented system?
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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03-07-2013, 10:33 AM
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#15 | |
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Registered User
Join Date: Oct 2010
Location: Ocean Springs, MS
Posts: 1,746
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Re: Dear Gas Cap,
Quote:
__________________
Gary 1971 Chevrolet C/10 1951 GMC 100 1977 GMC C15 1955 Chevrolet 3100 |
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03-07-2013, 10:41 AM
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#16 |
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Vintage 4x4s
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
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Re: Dear Gas Cap,
3/4 tons did not have the vent system and need a vented cap.
Replace your cap with a new vented Stant. If something was leaking, you would not have a pressure buildup so its your cap
__________________
67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore  )86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6 |
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03-07-2013, 12:36 PM
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#17 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,414
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Re: Dear Gas Cap,
[QUOTE=Vintage Windmills;5932603]3/4 tons did not have the vent system and need a vented cap.
Ah, so all half tons had the charcoal canister from 69 up?
__________________
70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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03-07-2013, 02:06 PM
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#18 | |
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Registered User
Join Date: Jan 2013
Location: Mickleton, NJ
Posts: 1,776
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Re: Dear Gas Cap,
[quote=70STOVEBOLT;5932798]
Quote:
__________________
Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881 |
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03-07-2013, 03:55 PM
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#19 |
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Registered User
Join Date: Mar 2012
Location: Okanagan Valley, BC, Canada
Posts: 1,237
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Re: Dear Gas Cap,
How do you tell the difference? What should i look for to tell if mine is supposed to be vented or not?? I have a 1970 GMC 1500.
__________________
#teamlongbed "I refuse to go disc brakes. I actually love drum brakes. It makes for an adventure." - 50bomb 1978 Chevy shop truck - static 6/8" 1970 GMC 1500 - Accuair eLevel Resto-mod http://67-72chevytrucks.com/vboard/s...d.php?t=537497 |
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03-07-2013, 04:03 PM
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#20 | |
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Registered User
Join Date: Jan 2013
Location: Mickleton, NJ
Posts: 1,776
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Re: Dear Gas Cap,
Quote:
__________________
Shawn 1970 Chevy C-10 SWB, 350, TKO 600 5 speed My build http://67-72chevytrucks.com/vboard/s...d.php?t=559881 |
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