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1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year
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1968 Mustang
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Topic:
Gas tank filler neck sealant
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Topic: Gas tank filler neck sealant (Read 1901 times)
68 S Code
Hero Member
Posts: 1084
Gas tank filler neck sealant
«
on:
May 11, 2011, 12:04:56 AM »
Osborn manyal shows 1/4 Sealant bead at gas tank neck to gasket or body. Not sure where the sealant goes, what 1/4 means and what kind of sealant to use?
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TLea
Global Moderator
Hero Member
Posts: 1119
Re: Gas tank filler neck sealant
«
Reply #1 on:
May 11, 2011, 08:03:27 AM »
Don't ever remember seeeing sealant there, just a cork gasket. If there would be I would bet on strip caulk
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Tim Lea Shelby concours judge MCA, SAAC, Mid America
gtamustang
CPM
Global Moderator
Sr. Member
Posts: 294
Re: Gas tank filler neck sealant
«
Reply #2 on:
May 11, 2011, 08:40:34 AM »
It is stripe caulk.
Regards,
Pete Morgan
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68 S Code
Hero Member
Posts: 1084
Re: Gas tank filler neck sealant
«
Reply #3 on:
May 11, 2011, 09:08:29 AM »
So 1/4 means 1/4" wide strip of rope caulk all the way around between the filler neck flange and the gasket or the gasket and the tail panel? Thanks.
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CharlesTurner
Charles Turner
Administrator
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Posts: 7621
Re: Gas tank filler neck sealant
«
Reply #4 on:
May 11, 2011, 12:09:33 PM »
I never took much notice of this before, but most every original filler neck I find has some trace of strip caulk at top where it goes through the tail light panel, gray or black.
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Charles Turner
- MCA/SAAC Judge
Concours Mustang Forum Admin
68 S Code
Hero Member
Posts: 1084
Re: Gas tank filler neck sealant
«
Reply #5 on:
May 11, 2011, 01:56:32 PM »
Ah so the 1/4 may mean at the top 1/4 of the flange (circle) to keep water out at the filler neck flange screws protruding through the cork gasket. The flange does have an indentation in the face where you could fit some rope caulk into it. I think the cork gasket should keep water out between the flange and the tail panel but the screws could still be an issue. Some have mentioned installing 2 cork gaskets instead of just one. Any recommendations on doing this?
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CharlesTurner
Charles Turner
Administrator
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Posts: 7621
Re: Gas tank filler neck sealant
«
Reply #6 on:
May 11, 2011, 03:20:18 PM »
Folks recommend installing 2 gaskets on 65-66 models to compensate for bad bodywork. If the original flange is preserved, it's not a problem to use one gasket with one bead of strip caulk.
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Charles Turner
- MCA/SAAC Judge
Concours Mustang Forum Admin
68 S Code
Hero Member
Posts: 1084
Re: Gas tank filler neck sealant
«
Reply #7 on:
May 11, 2011, 03:56:39 PM »
Charles thanks for the info.
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ConcoursMustang Forums
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1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year
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1968 Mustang
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Topic:
Gas tank filler neck sealant