Fuel cap leak
Moderator: Board Moderators
-
Grant
- Regular Poster
- Posts: 102
- Joined: Sun Mar 12, 2017 21:59
- Model: SE
- Colour: Red
- Year: 1986
- Location: Ilford, Essex
Fuel cap leak
Got petrol leaking out when the tank is full and doing some fast cornering. Does anyone know of you can get the rubber seal and spring for the cap. Driving slowly with less petrol isn't the answer!!!
- rbgosling
- Senior Poster
- Posts: 2023
- Joined: Sun Jul 04, 2010 22:55
- Model: Lotus Excel SE
- Colour: Midnight Blue
- Year: 1990
- Location: Rugby
Re: Fuel cap leak
Thanks for the link Angus, I should look at this too. Got banned from the track at two different track events for throwing petrol out of my cap. My planned solution was only to do track events with less than 1/3 tank full...
"Farmer" Richard
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
1990 Lotus Excel SE (Lilith)
2022 MG MG5 EV (not due to be a classic for quite a few years...)
2011 Nissan Leaf (Ragly - EV pioneer, must be due to be a classic one day)
-
Grant
- Regular Poster
- Posts: 102
- Joined: Sun Mar 12, 2017 21:59
- Model: SE
- Colour: Red
- Year: 1986
- Location: Ilford, Essex
Re: Fuel cap leak
Spoke to SJ Sports about replacement parts, they said changing them wouldn't necessarily fix the problem. Not filling it so much is probably the easy answer.
-
AndyC
- Senior Poster
- Posts: 2198
- Joined: Tue Nov 01, 2005 20:01
- Model: SE x2 + Celebration x2
- Colour: Gold,blue and green
- Year: 1987
- Location: Norwich
Re: Fuel cap leak
True that it may not fix it, but it may. At least if you attempt to fix it by means of a new small O-ring and rubber seal, you can reduce the amount that may leak, and filling only partial tank may be OK on a few laps of a track but it's a PITA for daily driving or a reasonably long run.
- don.hasi
- Senior Poster
- Posts: 1294
- Joined: Sun Jul 11, 2010 08:03
- Model: Eclat S2.2 Riviera
- Colour: Black
- Year: 1982
- Location: Germany RLP/Elsass
Re: Fuel cap leak
The replacements from Steve are plain and the OEM had grooves.... But if you change them it will definitely improve the leaking like Andy says. They are exposed to the environment so they have to changed regularly





Re: Fuel cap leak
if your old one isnt cracked, try taking it off and smearing Vaseline all over it and leave in a warm place for a day or two. I did and it made it swell and more supple so no more leak.
I REALISED YOU CANT LIVE WITHOUT A LOTUS!!! Until now 
-
richardw
- Moderator
- Posts: 2252
- Joined: Wed Feb 06, 2013 15:06
- Model: Elite S2.2 Automatic
- Colour: Essex Blue
- Year: 1981
- Location: Worcestershire
Re: Fuel cap leak
I'm very glad I read the thread title before your message!CHRISYD wrote:if your old one isnt cracked, try taking it off and smearing Vaseline all over it and leave in a warm place for a day or two. I did and it made it swell and more supple so no more leak.