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Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 10:34
by Dwaynem884
Hello gents,
My car never came with a fuel cap, just one of those cheap service station emergency caps. I got one from Lotusbits a year or so ago that they reassembled from different bits that they had. But it sits very loose and when the tank is full, petrol actually comes out given the mess down the rear quarter panel. My big concern is if petrol can get out, what can get in! Does anybody have a breakdown/pictures of all that's in the cap assembly. Maybe I'm missing a part or it's been assembled wrong.
Dwayne
Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 14:44
by KevW
I got my cap to fit snugly by fitting an extra black rubber seal on top of the original one and by slightly bending the metal tabs which engage on the fuel filler pipe.
Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 14:46
by Hawaiis0
Not the best shot but may help

Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 15:25
by Dwaynem884
Hawaiis0 wrote: Fri Dec 20, 2024 14:46
Not the best shot but may help
Yes, it was this photo on your post that peaked my interest. I definitely don't have that black circular piece on mine, not there anyway..
Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 16:34
by Hawaiis0
Then I think you need filler cap seal A082L6204S; £5 from SJs plus a £100 to ship
Not sealing and spilling as you mentioned is an MOT failure here.
Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 17:09
by Dwaynem884
Hawaiis0 wrote: Fri Dec 20, 2024 16:34
Then I think you need filler cap seal A082L6204S; £5 from SJs plus a £100 to ship
Not sealing and spilling as you mentioned is an MOT failure here.
oh no, not the seal, I have that. I mean the black part closest to you in the photo, held by the two screws.
Re: Excel Fuel Cap Assembly
Posted: Fri Dec 20, 2024 18:17
by bash
In the lock assembly in front of the tumblers should be an o ring seal, if thats missing it will also leak.
Bash
Re: Excel Fuel Cap Assembly
Posted: Sun Dec 22, 2024 18:54
by Hawaiis0
Dwaynem884 wrote: Fri Dec 20, 2024 17:09
oh no, not the seal, I have that. I mean the black part closest to you in the photo, held by the two screws.
It's not underneath the metal plate is it ? ie built upside down?
Re: Excel Fuel Cap Assembly
Posted: Wed Jan 29, 2025 15:28
by Dwaynem884
Hawaiis0 wrote: Sun Dec 22, 2024 18:54
It's not underneath the metal plate is it ? ie built upside down?
Yes it was, and it's the way it came to me from Lotusbits. but switched round now and problem solved! Thanks
Re: Excel Fuel Cap Assembly
Posted: Wed Jan 29, 2025 15:50
by rbgosling
Damn - my cap has also always leaked (particularly when driven "enthusiastically" on a track, which has had me black-flagged a couple of times). I'd better check to see if it's the same with mine!
Re: Excel Fuel Cap Assembly
Posted: Wed Jan 29, 2025 21:33
by Alan_M
rbgosling wrote: Wed Jan 29, 2025 15:50
Damn - my cap has also always leaked (particularly when driven "enthusiastically" on a track, which has had me black-flagged a couple of times). I'd better check to see if it's the same with mine!
The sealing rubbers do also go hard, perish and crack allowing fuel to leak. I’ve replaced all of mine.