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Gas filler cap

Arrow

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I have 3 TR-3s. I am working on a 60 (produced in 59). Gas tank filler was the type with a nut inside the body. I have a new (Moss) that does not have the nut. If I use the style without the big nut inside what holds it in place? If I use the style with the big nut (which I am leaning towards since that is what the car had) does it get a rubber washer/gasket between the filler cap and the body? Does it also get a gasket between the nut and the inside of the body panel? I took it apart years ago, took great noted except apparently on this piece. My daughter got sick and this has lingered for a few years but I am back at it. Appreciate any insight. Tom
 

TR3driver

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Arrow said:
If I use the style without the big nut inside what holds it in place?
Not much, just being clamped to the hose (which is clamped to the tank) and the grommet that goes in the hole.
<div class="ubbcode-block"><div class="ubbcode-header">Quote:] If I use the style with the big nut (which I am leaning towards since that is what the car had) does it get a rubber washer/gasket between the filler cap and the body? Does it also get a gasket between the nut and the inside of the body panel?[/QUOTE]My recollection is that there is a chromed flat washer that goes above the deck, and a fiber or cork gasket that goes under the deck.
 
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Arrow

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Thanks-I have spent the day working on the tank, stripped to bare metal and now primed. I just found the old filler cap and there is a fiber washer and yes a chrome ring. Chrone ring directly against the paint? Fiber washer below panel between boot and cockpit? NO washer or anything under chrome ring?
 

Geo Hahn

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Looking at mine (early style) it appears I used gaskets both below and above the chrome ring. I probably I made them myself from thick gray/black gasket material. The lower ring has a larger O.D. to match the bottom of the ring.

No idea what would be considered 'correct' but this arrangment snugs up nicely w/o scratching anything.
 
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