Having problems overhauling the mech pump on my 1953 Javelin.
Have received a new kit from Jowett spares and have fitted the new diaphragm by pushing in the rod and twisting bayonet fashion.
The pump works ok for a while then fails. On opening the pump the diaphragm pin has jumped out of the slot.
This has happened twice am i fitting the diaphragm wrong or should i refit the old one back as it seems ok.
Thanks .
Fuel pump
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Barry20383
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Re: Fuel pump
Not something that has happened when I have overhauled. Perhaps post some pictures of both installed and uninstalled to see any differences. If the old one works then do not fix it !
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David Kemp
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Re: Fuel pump
When it comes to wearing parts, I believe in preventive maintenance, so replacing diaphragms is a good idea.
The rubber perishes & can lead to breakdown & petrol in the oil.
Playing with old pumps also shows reduced performance of old & dried diaphragms compared to a freshly built pump.
The rubber perishes & can lead to breakdown & petrol in the oil.
Playing with old pumps also shows reduced performance of old & dried diaphragms compared to a freshly built pump.
Good memories of Bradfords.
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