Joined: Aug 2017 Posts: 606 Threads: 19
Reputation:
10
Location: Hampshire UK
Re. the filler cap. At one MOT the test was being conducted by a young lad under the watchful eye of the usual senior chap. He removed the filler cap and checked whether it had a sealing washer, which I thought was particularly thorough. Fortunately I had previously fashioned a ring from cork sheet to fit in it. I wonder if they had them originally, and whether that would prevent breathing via the cap ? Maybe the hole where the retaining wire fits would be enough.
Joined: Feb 2021 Posts: 292 Threads: 31
Reputation:
3
Location: New Zealand
Car type: Austin 7 Ruby 1938
I forgot to mention that when I blocked the breather pipe, I did file a little groove in the face of the brass flange that is on the top of the filler pipe. Just to be sure of a little air leakage.
Joined: Aug 2018 Posts: 190 Threads: 5
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0
Location: Dorset seaside
A pencil fits up the breather tube nicely.
Joined: Aug 2017 Posts: 965 Threads: 117
Reputation:
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Location: Melton Mowbray.
Caterham Sevens had efficient lockable petrol caps which sealed the system, resulting in fuel starvation. Caught me out several times.
