TRevver Posted July 25, 2022 Author Report Share Posted July 25, 2022 The pump ordered from Paddocks arrived and doesn’t fit. Although the angle of the inlet can be adjusted by loosening the bolt on the top, the outlet only has a few possible positions governed by the screw holes clamping the two halves together - none of which are compatible with the original steel fuel pipe, which I really don’t want to have to change. So ironically the EASIEST fix looks like it will be replacing the valves in the original unit! The new one doesn’t look like a particularly good pump anyway, no prizes for guessing the country of origin. Link to comment Share on other sites More sharing options...
johny Posted July 25, 2022 Report Share Posted July 25, 2022 Pity as Ive got the Paddock pump (although later type) on my Vitesse and its been fine for quite a few miles now.... Link to comment Share on other sites More sharing options...
TRevver Posted July 30, 2022 Author Report Share Posted July 30, 2022 Just rebuilding the pump and noticed the kit had two rubber gaskets. One is for sealing the glass bowl to the casing. The only use of the other one I can think of is for under the diaphragm on the bottom half of the casing (it seems to fit) but that would seem to block the air holes which I suppose are there to allow air flow assisting the diaphragm to move. Anyone got any ideas? Link to comment Share on other sites More sharing options...
johny Posted July 30, 2022 Report Share Posted July 30, 2022 Wonder if those kits are common and the other rubber gasket is to seal the later type pump with a cap on top instead of the glass bowl. Looks about the right size.... Link to comment Share on other sites More sharing options...
NonMember Posted July 30, 2022 Report Share Posted July 30, 2022 I suspect johny is right Link to comment Share on other sites More sharing options...
Pete Lewis Posted July 30, 2022 Report Share Posted July 30, 2022 +1 for that, dont block those breather holes Pete Link to comment Share on other sites More sharing options...
TRevver Posted July 30, 2022 Author Report Share Posted July 30, 2022 That would also explain the fibre washer that goes on the top of the bolt for the newer style pump. Thanks for your help. Pump is back on and seems to be working ok. There are also some useful YouTube vids on rebuilding ac fuel pumps - partic this one Link to comment Share on other sites More sharing options...
TRevver Posted August 3, 2022 Author Report Share Posted August 3, 2022 Related question… Does anyone know a good supplier of steel fuel pipe? Pref one that also supplies the olive and brass fittings required for fuel pump connection. Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 3, 2022 Report Share Posted August 3, 2022 8mm micro bore copper tubing from BQ olives are also available and dont discount a nylon/plastic fuelline all cars of the 70s used it Pete Link to comment Share on other sites More sharing options...
68vitesse Posted August 3, 2022 Report Share Posted August 3, 2022 When I refurbished my pump made some seals for the diaphragm stem from fuel pump diaphragm material off eBay, the pump was leaking some oil. Not available in any kit I could find but have since seen a few NOS on ebay. Regards Paul. Link to comment Share on other sites More sharing options...
TRevver Posted August 3, 2022 Author Report Share Posted August 3, 2022 Thanks. It appears Canley sell a kit as well as the pipe by the metre. It's copper vs the original mild steel. Was ideally after steel to match the rest but not an issue. https://www.canleyclassics.com/?product=petrol-pipe-kits&ptno=PPK12 Link to comment Share on other sites More sharing options...
daverclasper Posted August 3, 2022 Report Share Posted August 3, 2022 Is there anything that can fail on a mech pump, that introduces petrol into the engine oil? Ta, Dave Link to comment Share on other sites More sharing options...
johny Posted August 3, 2022 Report Share Posted August 3, 2022 If the pump diaphragm punctures fuel will leak into chamber underneath but as you can see in Trevver's previous photo there are drain holes in the base which should stop the fuel accumulating and running down the centre hole where it could enter the engine... Link to comment Share on other sites More sharing options...
Pete Lewis Posted August 3, 2022 Report Share Posted August 3, 2022 we had a situation on dodge/cmmer PB vas when they introduce a biased vent cap , parked up in the stock park with little fuel in the temperature built up the cap valve didnt open and the pressure overcomes the carb float , fuel ran into the bores and sunk into the sump at night when it all cooled down it would allow venting back in and when the sun came up it all restarted again end result was not from the fuel pump but you got half a sump of petrol in about a weeks storeage so dave are you having oil dilution , as depending on your type of pump its wont be complicated like the above but can be a failing fuel pump as the breather holes vary depends on pump maker pete Link to comment Share on other sites More sharing options...
daverclasper Posted August 12, 2022 Report Share Posted August 12, 2022 Thanks guys. No problems as such. Just interested in any preventative things to know about. I do like a good worry!😊 Link to comment Share on other sites More sharing options...
floormanager Posted August 14, 2022 Report Share Posted August 14, 2022 On 03/08/2022 at 11:20, 68vitesse said: When I refurbished my pump made some seals for the diaphragm stem from fuel pump diaphragm material off eBay, the pump was leaking some oil. Not available in any kit I could find but have since seen a few NOS on ebay. Regards Paul. Yes, I've bought a couple on ebay and refurbed a 1600 fuel pump. Link to comment Share on other sites More sharing options...
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