[6pack] Fuel filler orientation

Mon Nov 4 06:38:46 MST 2019

Dave Massey wrote:

>If the tube were not connected to that port, yes.  On my car there is a four-way T that connects this port >and the ports at each end of the tank to a tube that leads to the vapor separator in the trunk which is in >turn connected to a tube leading to the charcoal canister.

>>>>>But it looks like they changed the configuration over the years.

My response really concentrates on Dave’s last sentence and at the risk of a little verbosity (intended to clarify) this is how it often was for North American spec cars built outside the US and classified as imports.

Let’s take for example a car that would be the current model on 1st Jan 1970 and on sale in the destination market as at that date.

The Federal Bureau of Vehicle Safety Standards (or whatever it called itself in the days before the internet or mobile phones/faxes and when we still used carbon paper) would give overseas manufacturers selling cars in the US, an outline of the *likely* changes that would be current for the next model year. This info was usually made available to us by end January 1969 with the rider that they would not be final until authorised by the FBVSS in late June/early July 1969.

So the vehicle manufacturers went balls out to build/modify cars for the next sales year with all the modifications the anticipated legislation would require – including the wording, font size, whatever of sticky labels to be placed wherever. There was something of a frenzy is the emission regs for California** were due to be tightened up even further and everyone crossed their legs and fingers that the current engine range would meet requirements.

At mid-summer 1969, FBVSS would confirm specs for 1970. Sometimes, they deleted a requirement – and sometimes pitched in a ‘naughty’ they hadn’t indicated earlier. Mixed sighs of relief and “oh s**t” moments.

Five models of each car are built to the 1970 spec and shipped (often airfreighted) to the States for FBVSS evaluation and rubber-stamping so that the models can be sold next year. By now, we’re mid to end August 1969. If everything is OK’d or nodded through, everything goes beserk in Coventry to build and ship the cars required to be in the US for Jan 1, 1970. Usually, the quantities were to meet a six week stock depth across the US and to achieve this, often meant vehicle to all other world markets stopped. Then when it re-commenced, there were all the other changes those other 150 odd world markets wanted included as well. Then, for good measure, a few wildcards might get thrown in the works like a supplier strike or dock workers strike and everything stopped. Then flat out again to clear the backlog.

I was having an informal chat some years ago with the late Mike Cook about this whole shenanigans and he confirmed that Detroit always got preferential treatment by receiving outline and confirmed specs for the next model year a good six months earlier than everyone else – i.e. the imported stuff. Good capitalist protectionism😊 

To make matters worse, the standards for Detroit product and Joe Soap’s imported product were nearly always different inasmuch as the imports had a harder job to meet the specs in terms of what they were (i.e. we were expected to do more than Detroit) and six months less time in which to do it. Frankly, I think it’s amazing we ever sold anything at all and of all the European manufacturers who moaned and bellyached about the extra work, Volkswagen were the worst by far.

Jonmac

-----Original Message-----
From: Richard <taylorturbo6 at yahoo.com <mailto:taylorturbo6 at yahoo.com> >
To: DAVID MASSEY <dave1massey at cs.com <mailto:dave1massey at cs.com> >
Cc: richardolindsay <richardolindsay at gmail.com <mailto:richardolindsay at gmail.com> >; 6pack <6pack at autox.team.net <mailto:6pack at autox.team.net> >
Sent: Sun, Nov 3, 2019 9:39 pm
Subject: Re: [6pack] Fuel filler orientation

Does this vent placing in the filler neck let gas fumes escape into the trunk area? Which would also mean fumes could creep into the car's interior...

Dick

On Nov 3, 2019, at 6:47 PM, DAVID MASSEY <dave1massey at cs.com <mailto:dave1massey at cs.com> > wrote:

No, not all.  The 71 has a port in the filler tube connected to the cap.  Rotating the cap will reposition that tap and necessitate changing the plumbing.  I thought they were all that way.

Dave 

-----Original Message-----
From: Richard <taylorturbo6 at yahoo.com <mailto:taylorturbo6 at yahoo.com> >
To: DAVID MASSEY <dave1massey at cs.com <mailto:dave1massey at cs.com> >
Cc: richardolindsay <richardolindsay at gmail.com <mailto:richardolindsay at gmail.com> >; 6pack <6pack at autox.team.net <mailto:6pack at autox.team.net> >
Sent: Sun, Nov 3, 2019 6:05 pm
Subject: Re: [6pack] Fuel filler orientation

On my fuel cap, it's neck that goes down into the clamped hose, can be moved around independent of the vent tube on the top of the tank. Aren't they all? 

I gill my tank from standing behind the bumper so which side left or right the cap opens is immaterial. 

Dick 

On Nov 3, 2019, at 2:34 PM, DAVID MASSEY via 6pack <6pack at autox.team.net <mailto:6pack at autox.team.net> > wrote:

It's not that trivial since the tank vent nipple is mounted to the filler and spinning it around will require replumbing the vent tubes.  If you wish to avoid that step check where it was before and go from there.  On my car it is hinged on the right.

Dave 

-----Original Message-----
From: Richard Lindsay via 6pack <6pack at autox.team.net <mailto:6pack at autox.team.net> >
To: TR6 <6pack at autox.team.net <mailto:6pack at autox.team.net> >
Sent: Sun, Nov 3, 2019 10:50 am
Subject: [6pack] Fuel filler orientation

Hello friends,  

   If you've followed any of the work on my '75 US specification TR6 you will know that the following question is probably irrelevant...but I ask anyway, for your sage advice:

When reinstalling the fuel filler cap, which is the correct orientation? Hinge side toward the front. Or rear? Or to one side or another?

   Thanks in advance of your reply.

Rick

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