pinky Posted January 21, 2007 Report Share Posted January 21, 2007 When wiring up the bush fuel pump it has been suggested to use the original wires to control a relay switch (no problem) then run a thicker wire direct from the battery my question, is this wire connected to the battery? also the car seems to run a lot better with the new pump more reve or is this my imagination ? Quote Link to post Share on other sites
ianhoward Posted January 21, 2007 Report Share Posted January 21, 2007 Pinky On my 5 I installed a relay (kindly supplied complete with wiring and crimps) that John Larcombe ('Jonlar') made up... The relay is supplied by the existing wiring with heavier duty wiring used as the supply and earth from suitable source - battery. Regards Quote Link to post Share on other sites
wheeler Posted January 21, 2007 Report Share Posted January 21, 2007 Pinky Circuit diagram for pump wiring Best regards Bill Quote Link to post Share on other sites
pinky Posted January 21, 2007 Author Report Share Posted January 21, 2007 Pinky Circuit diagram for pump wiring Best regards Bill Thanks Bill I have seen this diagram before and can understand what is all about I do not no what the M stands for on the drawing though I still have my question, do you bolt the wire on the battery with an in line fuse or is there a better way to source the power direct Quote Link to post Share on other sites
wheeler Posted January 21, 2007 Report Share Posted January 21, 2007 Hi Pinky The M is the motor in the pump assembly. This diagram was originally for a wiring modification for the Lucas pump but will do equally well for the Bosch pump. See this web site http://www.kvaleberg.com/t_pi.html#modifications which contains a lot of info for Lucas petrol injection. To be safe the supply for the battery must be fused an inline 30 amp fuse should be fine. Best regards Bill Quote Link to post Share on other sites
TIMS Posted January 22, 2007 Report Share Posted January 22, 2007 Pinky Or use a fused relay. Tim Quote Link to post Share on other sites
RobinTR6 Posted January 25, 2007 Report Share Posted January 25, 2007 Pinky Or use a fused relay. Tim Bought Bosch pump, 2 filters, braided hosed cost is less than £200 (these guys supply the TR specialists) for less than £200 and kept original wiring. NO problems in 3 months and a few thousand miles. Quote Link to post Share on other sites
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