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New genuine fuel filler cap is different. #1632539
16/05/2019 11:22
16/05/2019 11:22
Joined: Jan 2008
Posts: 186
Isle of Wight,
Skiday Online content OP
Club Member 1700
Skiday  Online Content OP
Club Member 1700
On a journey

Joined: Jan 2008
Posts: 186
Isle of Wight,
Hi Guys.

As I had previously stripped the imperfect lacquer off my fuel filler cap and found out how hard it is to keep on top of polishing it to keep it looking good, i.e. more often than I actually drive the car! I was thrilled to find that there is an ebay seller with new genuine fuel filler caps for the bargain price of just £59.99 free p&p - Item 273142234879. So I bought this a few months back and I finally got around to fitting it the other day. However I found that the hole that takes the lock barrel has a slightly different design. This means that instead of the key turning 180 degrees allowing it to be removed, it can only turn 90 degrees and that means the key cannot be removed when the lock is unlocked, and that means the keys resting on the paint when refueling and the lock MUST be locked at all other times, which I don't normally do. I'm going to find a way around it, but I can only think there was a change of design sometime (my car was built 1999, 1st reg 2000).

Does your car allow you to leave your cap unlocked if you want to?

Thanks

Andrew


20VT, Aston DBS, Ferrari F355
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632540
16/05/2019 11:54
16/05/2019 11:54
Joined: Dec 2005
Posts: 1,592
Brisbane, Australia
Possum Offline
My life on the forum
Possum  Offline
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Joined: Dec 2005
Posts: 1,592
Brisbane, Australia
The lock on the cap on my 1996 16VT allows me to leave it unlocked.

About 10 years ago I removed the lacquer on mine and polished it on a "cloth wheel" on the end of a bench grinder. I now give it a monthly polish with "polish impregnated" cotton wool (and the chrome exhaust tip). My Coupe is always garaged when not being used.


Re: New genuine fuel filler cap is different. [Re: Skiday] #1632541
16/05/2019 11:55
16/05/2019 11:55
Joined: Dec 2005
Posts: 7,172
Lightwater, Surrey, UK
DaveG Offline
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DaveG  Offline
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Joined: Dec 2005
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Lightwater, Surrey, UK
I noticed this difference between my 1996 Porto 20vt and 2000 White Plus, so as you say, the design must have changed, presumably to ensure that when closed it is always locked?

But on the later design, IIRC once unlocked, I then open it slightly, lock it, remove the key, and then open fully to refill. Then when finished, IIRC I just push it shut and it locks without having to use the key?


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632543
16/05/2019 12:13
16/05/2019 12:13
Joined: Jan 2008
Posts: 186
Isle of Wight,
Skiday Online content OP
Club Member 1700
Skiday  Online Content OP
Club Member 1700
On a journey

Joined: Jan 2008
Posts: 186
Isle of Wight,
I was mistaken in what I said. When I said the key now only turns 90 deg to unlock it but the key is not removable, actually, when you turn the key 90 deg from locked it remains locked. There is no way to unlock it at all. I will either have to grind the new latch so it is the same as the old, or grind down the locking plate so that the cap can never be locked at all.

If my car was in the garage all the time it would be fine as polished, but it lives in a car shelter (which you can see on the project thread I have).

What is IIRC?


20VT, Aston DBS, Ferrari F355
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632546
16/05/2019 14:06
16/05/2019 14:06
Joined: Dec 2005
Posts: 7,172
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
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Forum is my life

Joined: Dec 2005
Posts: 7,172
Lightwater, Surrey, UK
If I Remember Correctly...


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: New genuine fuel filler cap is different. [Re: DaveG] #1632575
17/05/2019 10:46
17/05/2019 10:46
Joined: Jan 2008
Posts: 186
Isle of Wight,
Skiday Online content OP
Club Member 1700
Skiday  Online Content OP
Club Member 1700
On a journey

Joined: Jan 2008
Posts: 186
Isle of Wight,
Originally Posted by DaveG
I noticed this difference between my 1996 Porto 20vt and 2000 White Plus, so as you say, the design must have changed, presumably to ensure that when closed it is always locked?


So on your '96, did the key only turn a quarter turn to unlock?


20VT, Aston DBS, Ferrari F355
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632578
17/05/2019 11:16
17/05/2019 11:16
Joined: Dec 2005
Posts: 7,172
Lightwater, Surrey, UK
DaveG Offline
Club Member 311
DaveG  Offline
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Forum is my life

Joined: Dec 2005
Posts: 7,172
Lightwater, Surrey, UK
No, 180° or half a turn IIRC (sorry) I will try to confirm later.


1996 Portofino 20vt & 2000 Pearl White Plus
1985½ & 2016 2017 Fiat 124 Spider + XF Sportbrake
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632583
17/05/2019 14:18
17/05/2019 14:18
Joined: Mar 2007
Posts: 10,583
Auld Reekie
Edinburgh Offline
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I AM a Coop

Joined: Mar 2007
Posts: 10,583
Auld Reekie
On my 96 20vt it's a half-turn, but on my mate's W VIS it's a quarter...


[Linked Image]

So there, Photobucket...
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632668
12 hours ago
12 hours ago
Joined: Sep 2007
Posts: 505
Freedom
Master_Mariner Offline
Club member 583
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Posts: 505
Freedom
Hi All,

After an episode where I simply could NOT unlock my coupes fuel cap when she was orange warning level low with fuel (and having to take her back to base and go on the journey in another car) I've never left the fuel cap locked.

You just need to ensure that the clip to the lid has a good spring in it (they rust to nothing) so that it can "click" shut and remain air tight to allow the tank to vacuum seal for the pump to fuel the car properly.

Regards

MM

Re: New genuine fuel filler cap is different. [Re: Skiday] #1632670
11 hours ago
11 hours ago
Joined: Mar 2019
Posts: 32
North Macedonia
386ka Offline
Discoverer
386ka  Offline
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Joined: Mar 2019
Posts: 32
North Macedonia
@MM, I had a similar problem when I bought my (very) used Coupe. I could not open the fuel filler cap, and I suspected that the cap was changed at some point and used different key. I went to the locksmith and he charged me to reconfigure the lock for my key, but the lock was not working good 100% of the time.

What it turned out at the end, is that if your key is very worn and used, it will go through the lock further than it should, and will cause problems. The remedy was to pull it out just a bit, and then the lock turned as intended.

Last edited by 386ka; 9 hours ago.
Re: New genuine fuel filler cap is different. [Re: Skiday] #1632681
3 hours ago
3 hours ago
Joined: Dec 2005
Posts: 32,143
Hemel in the Hempstead
barnacle Offline
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Posts: 32,143
Hemel in the Hempstead
Quick calculation: 285,000 miles, fill up every 300 miles or so, that's under a thousand uses of the lock on my filler. Still seems to be working laugh



Don't get no respect! Coupe Fiat 1994-2000 - an owner's guide <-- clicky!
Re: New genuine fuel filler cap is different. [Re: barnacle] #1632684
2 hours ago
2 hours ago
Joined: Jan 2008
Posts: 186
Isle of Wight,
Skiday Online content OP
Club Member 1700
Skiday  Online Content OP
Club Member 1700
On a journey

Joined: Jan 2008
Posts: 186
Isle of Wight,
Originally Posted by Edinburgh
On my 96 20vt it's a half-turn, but on my mate's W VIS it's a quarter...


Well that's odd... A '96 has a half turn and so does my '00, but another W reg (not sure what VIS refers to though, but assume you mean a 'W' reg). So why would there be a different version and when would it have changed.

Stranger than that, the unit I was supplied does not look as if it ever could be unlocked without a half turn of the key (unless the barrel was different). Anyway, as I may have said above, I cut the tab that the latch bumps into locking the cap so that it can now never be locked. If we could only work out how Fiat managed to lacquer the caps then I wouldn't have had to replace it at all. I did try with 2K lacquer, but it just peeled off.

Originally Posted by barnacle
Quick calculation: 285,000 miles laugh


WOW, seriously impressed, on the way back from the Moon then!


20VT, Aston DBS, Ferrari F355

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