Datsun Roadster Gas Cap Alignment Review

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ted heaton
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Datsun Roadster Gas Cap Alignment Review

Post by ted heaton »

Datsun Roadster Gas Cap Alignment Review.
IMG_20210117_154724.jpg
IMG_20210117_154758.jpg
IMG_20210117_154625.jpg
The annual ongoing effort from the 311s Official Gas Cap Inspector to remind roadster owners
that there is a correct alignment for the gas cap. The ridge on the lid is vertical and the hinge is at the top.
Skeptics might ask "How do you know?"
Aside from the obvious "sure looks right and matches the other lines of the trunk area", there are pictures
from "original" sources such as sales brochures, owners manuals, Introductory bulletins, publicity photos and magazine road tests
that show the roadster as it came from Nissan..
Not too many clear pictures from the back but here are 2 good ones. More at the link.


Image

Image

So the questions are.
"Why are so many gas caps offset to the right about 25 degrees?". The metal filler tube has turned in the rubber filler hose.
"How come"?. Gas cap removal turns to the right, The vent hose from the filler tube to the gas tank is
angled to the right and wants to twist the filler tube to the right. Over time the filler tube slowly turns to the right
until the vent hose angle is reduced and it stops twisting the filler tube.
Solution?. Loosen the filler hose clamps and turn the filler tube to the left till the cap lid ridge is vertical.

The gas cap can be seated on the tube upside down with the cap hinge on the bottom.
The pictures show the hinge is at the top. Thin end of the ridge is at the top.

Covid-19 allowing I will be at the 2021 West Coast roadster shows and I will be checking gas cap alignment.
Violators will be photographed and shamed on 311s!
:lol: :lol: :lol: :roll:
Seriously. lets have our roadsters looking nice.

https://1drv.ms/u/s!AjExGNQ-D8bA2DGxSbE ... 4?e=XvPxk1

Ted
311s Gas Cap Inspector and Enforcer. 8) 8)
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Last edited by ted heaton on Mon Jan 18, 2021 1:44 am, edited 2 times in total.
Ted Heaton
Bellevue, Washington
DROPS (Datsun Roadster Owners of Puget Sound)
SPL31003054 1964 1500
SPL31112958 1967.5 1600 S15 SR20DET
SRL31105015 1968 2000 S13 SR20DET
SRL31112326 1969 2000 Honda VTEC
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Solex68
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Solex68 »

Great reminder and something to check and align easily enough. I'll inspect mine tomorrow. Pretty sure I aligned it before the last Solvang event but I will double check.
Greg a.k.a SOLEX68 - http://www.datsunvents.com/
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Always willing to help another Datsun Roadster owner
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Curtis »

Just say no. My cap will never be aligned.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by itsa68 »

Thru the years I lost too many caps.
Now using a rag. I believe it hangs down when not driving.
Hope that helps. :wink:

Cheers
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Thats not a R16 death rattle....its a dried leaf hitting my heater blower fan.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by bajaroadster »

:roll: There's supposed to be a cap? Seems inconvenient to have to remove and replace a cap each time I need to fuel up.
Ive seen normal. It aint pretty.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by 70MTRoadster »

I went out and checked mine and found it rotated slightly to 1 O'clock. Followed your instructions and am now "oriented correctly" to 12 O'clock, thus joining the inspected and corrected alignment crew. Amen.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by DAC21 »

itsa68 wrote: Mon Jan 18, 2021 12:06 pm Thru the years I lost too many caps.
Now using a rag. I believe it hangs down when not driving.
Hope that helps. :wink:

Cheers
Ray B.

Well tongue and check to some degree. But I'm not sure how a gas cap gets left behind if the ignition key is on the same fob as the gas lock key. Keep the gas key in the cap when filling. When done you have to put the gas cap on to pull out the gas / ignition key to drive away. Yeah yeah easier said then done. Back in the day when these cars left the factory wasn't the ignition and gas cap key one and the same? How did you drive away without your cap if you had the sense to keep the key in the cap while filling? I must be missing something?
1967 1600 in waiting SPL311-09002 / R-28178
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Re: Datsun Roadster Gas Cap Alignment Review

Post by theunz »

My gas cap lock malfunctioned years ago. I simply removed the locking tang and have used it as a non locking cap ever since, so no key required.
Mike M

Old enough to know better, too old to remember why!


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Re: Datsun Roadster Gas Cap Alignment Review

Post by C.Costine »

I promise to check mine. I have to get the car down with my forklift from winter storage overhead on a pallet rack so it may be a week or two.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Kurt »

Any alignment tips for my '70 gas cap? :lol:
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ted heaton
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Re: Datsun Roadster Gas Cap Alignment Review

Post by ted heaton »

Kurt wrote: Thu Jan 21, 2021 3:15 pm Any alignment tips for my '70 gas cap? :lol:
Kurt, Use your black sharpie and draw a nice vertical line. :lol: :lol: :lol:
No alignment enforcement for those plain, ugly 70 gas caps.
:lol: :lol: :lol: :( :roll:

Ted.
Ted Heaton
Bellevue, Washington
DROPS (Datsun Roadster Owners of Puget Sound)
SPL31003054 1964 1500
SPL31112958 1967.5 1600 S15 SR20DET
SRL31105015 1968 2000 S13 SR20DET
SRL31112326 1969 2000 Honda VTEC
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Re: Datsun Roadster Gas Cap Alignment Review

Post by RustBucket »

Ahem, It seems like the two caps in the pictures you provided are not straight either. The Datsun plated picture is Clockwise a few ticks and the 871 picture is counterclockwise a few degrees. Doesn't that give a poetic license to be off a bit? I solved it by using the non-standard Dauphine or Suzuki or whatever it is cap painted car color.... I have a locking one hanging out on the tool bench waiting.... I'll make sure to point out my mangled mess to you at Solvang.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Ralph »

Will this make up for the tremclad & roller paint job?? :smt045 :roll:
IMG_1357.jpg
IMG_1356.jpg


Just checking. Now .... get back to the game.
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Randalla »

So, I'm headed to Solvang with my Roadster in tow Thursday morning. This is the first time I've brought my car, but I've been there twice before. Reading this thread today, I definitely didn't want to be shamed, or worse yet ticketed by the gas cap police, so, one of the last things I did today was to properly orient the cap. I've never affixed the locking tab to my cap, and looking today, I seemed to have misplaced the key. Does anyone know if the 4 digit code under the cover (5641 on my cap) is sufficient to have a key made by a good locksmith?

I'm sure I'll be set straight on several other issues on my Roadster at the show, but that's OK. Part of the reason for attending is to learn from the "experts." The other reason is to drive through the vineyards tasting wine for four days in Paso Robles the following week. That's been on my wife's and my bucket list since the Roadster was finished. Looking forward to a fun week!
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Re: Datsun Roadster Gas Cap Alignment Review

Post by Solex68 »

Yes...a good locksmith can cut one with just the 4 digit code under the cover, He'll have to see the cap itself too probably because there are different caps. keys and locks (i believe).
I may bring my spare keys to sell at Solvang but I don't have all the types organized right now so matching one up is kinda a pain with so many choices. If I had more time to prepare I would have for sure. I'll see.
Greg a.k.a SOLEX68 - http://www.datsunvents.com/
Laguna Hills, CA
68 2000 U20
Always willing to help another Datsun Roadster owner
Pending installs: SS brake lines, Stan Stealth Dizzy