Classic cars forum & vehicle restoration.
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ukdave2002
Joined: 23 Nov 2007
Posts: 4390
Location: South Cheshire
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Ray White
Joined: 02 Dec 2014
Posts: 7635
Location: Derby
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 Posted: Wed Jul 22, 2026 10:17 am Post subject: |
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Thanks Dave. It makes me wonder why they would change from a reliable cork gasket to a rubber one.?
I will get a cork gasket but I must also check that the surface is flat overall ...if it isn't nothing will seal properly.
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ukdave2002
Joined: 23 Nov 2007
Posts: 4390
Location: South Cheshire
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| Posted: Wed Jul 22, 2026 12:43 pm Post subject: |
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| Ray White wrote: | Thanks Dave. It makes me wonder why they would change from a reliable cork gasket to a rubber one.?
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A lot of the time the far eastern manufacturers have no idea what the function is of the component they are making, there probably are multiple firms who make different parts of the gauge sender and another who assembles it, for all they know this may be something going in a washing machine!, hence unless their brief specifically states that the gasket has to be "fuel proof" they will supply whatever is readily available and or the cheapest!.
Firms in China get a bad rep, but imho the fault is normally with the Western customer, who either does not specify correctly, or sends them an old worn sample of something and are surprised when then manufacturer in China replicates it precisely! or more likely its the customers customer who is both surprised and disappointed.
We get some really good stuff made in China, things like engine studs, however we specify the required steel quality, rolled threads, the finish and any protective coating etc.
Your warning lamp is another example, it wouldn't surprise me that whoever got those made, sent them a old faulty lamp where someone had bypassed the coil, so that's what was supplied back! |
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alastairq
Joined: 14 Oct 2016
Posts: 2236
Location: East Yorkshire
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| Posted: Wed Jul 22, 2026 2:44 pm Post subject: |
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| ukdave2002 wrote: | | Ray White wrote: | Thanks Dave. It makes me wonder why they would change from a reliable cork gasket to a rubber one.?
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A lot of the time the far eastern manufacturers have no idea what the function is of the component they are making, there probably are multiple firms who make different parts of the gauge sender and another who assembles it, for all they know this may be something going in a washing machine!, hence unless their brief specifically states that the gasket has to be "fuel proof" they will supply whatever is readily available and or the cheapest!.
Firms in China get a bad rep, but imho the fault is normally with the Western customer, who either does not specify correctly, or sends them an old worn sample of something and are surprised when then manufacturer in China replicates it precisely! or more likely its the customers customer who is both surprised and disappointed.
We get some really good stuff made in China, things like engine studs, however we specify the required steel quality, rolled threads, the finish and any protective coating etc.
Your warning lamp is another example, it wouldn't surprise me that whoever got those made, sent them a old faulty lamp where someone had bypassed the coil, so that's what was supplied back! |
A very good point, and one that the classic car world needs reminding of....frequently.
A point I made to an old chum recently was...how on earth do we punters actually tell what we are buying???
How do we tell if an electrical component [as an example] has been manufactured using decent quality ingredients?
Price alone is no guarantee in this day & age, either.
How do we tell, from an online catalogue, whether a pattern part will actually fit, or is 'fit for purpose?'
Remembering,of course, that whilst we can return items if they won't fit, or are poor quality having inspected on arrival, that is one hell of a lot of inconvenience for a customer to undergo.
Or, do we purchase selectively{?}, and accept that what turns up may not fit, may not last very long, & may not be of a quality one would like???
Vendors cannot be expected to know everything about what they sell, either.
Nor can what they do say, be taken as correct, or reliable.
A vendor may have simply purchased the stock from another ...who purchased from yet another...so the background to the item may be lost in the mists of time?
Or, the sheer monetary value of the item be such that it isn't worth the vendor's time & effort, worrying about it?
It's all rather a big minefield out there, in truth.
_________________
Dellow Mk2, 1951 built, reg 1952.
Fiat 126 BIS
Cannon special [1996 registered. Built in 1950's]
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Ford Pop chassis, Ashley 1172 bodyshell, in pieces. |
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Ray White
Joined: 02 Dec 2014
Posts: 7635
Location: Derby
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| Posted: Wed Jul 22, 2026 3:37 pm Post subject: |
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...or as has already been suggested, the overall surface around the opening in the new tank may not be flat. It is something that I should have checked out first.
I am not blaming anyone but myself.  |
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Ray White
Joined: 02 Dec 2014
Posts: 7635
Location: Derby
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| Posted: Thu Aug 06, 2026 10:24 am Post subject: |
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Just to sum up this 'drifted' thread...I have now fitted the correct cork gasket courtesy of our friends at the Morris Register. Filled with petrol and after several days still no sign of a leak.
Many thanks to Dave. |
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ukdave2002
Joined: 23 Nov 2007
Posts: 4390
Location: South Cheshire
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| Posted: Thu Aug 06, 2026 1:08 pm Post subject: |
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Looks like a result 
I do think cork is more forgiving than "rubber" type of gasket in situations where the surface may not be perfect, possibly the way it deforms under pressure is superior? |
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Ray White
Joined: 02 Dec 2014
Posts: 7635
Location: Derby
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| Posted: Thu Aug 06, 2026 2:16 pm Post subject: |
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| ukdave2002 wrote: | Looks like a result
I do think cork is more forgiving than "rubber" type of gasket in situations where the surface may not be perfect, possibly the way it deforms under pressure is superior? |
The rubber gasket that I removed was badly deformed despite being evenly tightened to a good flat surface. I should imagine the type of rubber used was unsuitable; it also has a central 'void' which can't have helped.
In terms of design, perhaps a case of a little knowledge being a dangerous thing?.  |
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