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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554  |
X GPO or post office land rover most of their kit is pos earth ?
https://www.moss-europe.co.uk/catalogsearc...rch_group= |
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24th Jul 2019 8:19am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6611  
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You can use one of the two-wire Facet solid-state (cube type) pumps, connecting red wire to chassis and black as feed.
https://mossmotors.com/media/instructions/377-420.pdf (see bottom of page 3) Don't buy a copy - only a genuine Facet. You can find them for about £45 to £50.  1988 90 Td5 NAS soft top
2015 D90 XS SW |
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24th Jul 2019 8:54am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17450 
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You could get a new pump of the original type (deep pockets needed) but why not convert to neg earth?
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24th Jul 2019 9:18am |
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| Slideywindows Member Since: 09 Sep 2016 Location: North Essex Posts: 1286 
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Richard, plenty of early 2.25 petrol Ninetys get vapour lock, with electric pumps.
Surely the answer is to solve the vapour lock, rather than change the pump? Just an after thought - Most early coilers with electric pumps have a flow and return system to a swirl-pot and then gravity feed to the carb. Very early 2.25 petrol One Tens (such as the one I am beginning to work on) have the same mechanical fuel pump as yours. However, they have a special carb with a Y-shaped connection for the flow and return fuel pipes to merge at the same entry point on the carb. Will you have a flow and return set-up for your electric pump? |
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24th Jul 2019 11:10am |
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| seriesonenut Member Since: 19 Nov 2014 Location: Essex Posts: 1221
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Hi
Thanks for the responses. Why not change to negative earth? I have invested in a Simon BBC positive earth distributor a couple of years back and this set up is working well. Charles, I was looking at this - http://www.webcon.co.uk/shopexd.asp?id=48 This looks like an in line pump with no return. That said i could fit one (a return) as described and as fitted to early coil sprung Land Rover's. I have replaced the mechanical pump, moved and insulated the fuel line to see no real improvement. Someone recommended a heat shield to protect the carb from the manifold. I have overcome the lock by pumping the mechanical pump by hand, so in theory an electric pump would be doing this better than the small hand crank pump lever Anyway keep any suggestions coming  1984 One-Ten CSW
2010 XS USW (sold) 1957 Series One 88 diesel 1958 Series One 88 4x2 |
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24th Jul 2019 5:29pm |
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| MR_JAMES Member Since: 10 Oct 2013 Location: ESSEX Posts: 248 
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I am using a new su aua25 points pump on my series one from burlen (positive earth as well) these work on both polarities and will last for years and years. 1953 80"
1987 mini city e 2011 90" |
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25th Jul 2019 8:46pm |
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