Gas smell under the tank, more of a rant than anything |
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Gas smell under the tank, more of a rant than anything |
rjames |
Jul 8 2009, 10:39 AM
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#1
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Open the front hood and you can smell the gas, and I can tell it's coming from the underside of the tank (new gasket on the topside).
I also had this problem last year. That's when I decided pull and refinish the tank (inside and out). At that time I replaced the tank filter sock and all washers, the fuel filter and all of the soft lines under the tank. Fuel smell gone! At least until this week when the smell of fuel returned with a vengence. Enough to stink up the garage when I open the hood. (IMG:style_emoticons/default/dry.gif) The rant is that I hate pulling the tank. It's a royal pain. So far it's been one of my least favorite jobs. Also, I hate that all of the work I did to get rid of any gas leaks/weeping lines etc, only lasted for a year. I also hate that the 'access' hole on the underside of the car is barely accessible by anyone- except for maybe rats and spiders. (IMG:style_emoticons/default/mad.gif) Ok, rant over. Back to your regularly scheduled day. |
Jeffs9146 |
Jul 8 2009, 10:44 AM
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#2
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Ski Bum Group: Members Posts: 4,062 Joined: 10-January 03 From: Discovery Bay, Ca Member No.: 128 |
Sounds like the threaded nipple on the bottom of the tank is loose!
I had this problem and I was able to put a claw type socket on my extension and tighten it from the bottom! |
underthetire |
Jul 8 2009, 10:48 AM
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#3
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914 Guru Group: Members Posts: 5,062 Joined: 7-October 08 From: Brentwood Member No.: 9,623 Region Association: Northern California |
I feel your pain. All the guys here say "run the good german hose". I say nay myself. The west coast fuel just ate the crap out of it. I use the high pressure FI hose for as much as I can. Expensive yes, but the stuff holds up.
Just my 2 cents. BTW for the "old" metric argument... 5/16 hose is .3125" 8mm hose is .315" .0025" is less than the width of most human hair. About as much as a single sheet of paper. It makes no difference. 7 mm can use 1/4 but its .025 different. Thats tougher to use. (1/4 being smaller). |
rjames |
Jul 8 2009, 11:07 AM
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#4
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
QUOTE I feel your pain. All the guys here say "run the good german hose". I say nay myself. The west coast fuel just ate the crap out of it. I use the high pressure FI hose for as much as I can. Expensive yes, but the stuff holds up. Just my 2 cents. The 'good German stuff' I replaced last year with high pressure FI hose. Hopefully I just need to tighten the fittings on the tank as Jeff suggested. I really don't want to have to pull the tank again. Do folks use anything on the threads like plumbers tape or something? It's a '75, so at least I can take a look at the fuel pump & filter connections fairly easily. |
914werke |
Jul 8 2009, 02:20 PM
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#5
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"I got blisters on me fingers" Group: Members Posts: 10,066 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest |
there is a "fiber" washer that must exist to provide a good seal on one or both of the fittings ..?
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rjames |
Jul 9 2009, 11:43 AM
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#6
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
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Spoke |
Jul 9 2009, 12:01 PM
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#7
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Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None |
I also hate that the 'access' hole on the underside of the car is barely accessible by anyone- except for maybe rats and spiders. (IMG:style_emoticons/default/mad.gif) Then don't use the access hole. Instead of a 6 or 8 inch hose and having to go under the car to connect/disconnect, make the hoses 3 ft long. The extra hose won't make a difference on fuel delivery and will allow you to be able to lift the tank completely out of the cavity without disconnecting the hoses. The hoses should go from the tank, then loop over towards the driver side then back to the tunnel tubes. To hold the tank up while making/breaking connections, I use a couple of 2x4s between the bulkhead and the cowl. You can even start the car with the tank out of its cavity. I traced a fuel pump leak doing this. |
rjames |
Jul 9 2009, 01:31 PM
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#8
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I'm made of metal Group: Members Posts: 3,933 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
I also hate that the 'access' hole on the underside of the car is barely accessible by anyone- except for maybe rats and spiders. (IMG:style_emoticons/default/mad.gif) Then don't use the access hole. Instead of a 6 or 8 inch hose and having to go under the car to connect/disconnect, make the hoses 3 ft long. The extra hose won't make a difference on fuel delivery and will allow you to be able to lift the tank completely out of the cavity without disconnecting the hoses. The hoses should go from the tank, then loop over towards the driver side then back to the tunnel tubes. To hold the tank up while making/breaking connections, I use a couple of 2x4s between the bulkhead and the cowl. You can even start the car with the tank out of its cavity. I traced a fuel pump leak doing this. I did make the hose much longer than the original 6- 8". Good idea regarding the 2x4s to hold the tank up. I hadn't thought of that! Hopefully I gave myself enough room to have it up that high and still connected. My guess is that i wasn't thinking that far ahead at the time. (IMG:style_emoticons/default/dry.gif) |
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