k_raven_smith Posted March 24, 2013 Report Share Posted March 24, 2013 Hi you can call me on 07977001571. Cheers neil Quote Link to post Share on other sites
amclpreston Posted March 24, 2013 Report Share Posted March 24, 2013 Interesting, amclp! Just shows the 'suck' proficiency of the Lucas pump, I suppose. And the swings and roundabouts of modification, although why anyone wanted the pump under the bonnet, beats me. Car was commission no. CP6 , Reg LHP 293F, one of several used by journalists for testing... http://www.flickr.com/photos/23771156@N00/4754660566/in/photostream/ I believe the pump had been mounted underbonnet from the beginning. No signs of it being mounted anywhere else, as I recall. Quote Link to post Share on other sites
stuart Posted March 24, 2013 Report Share Posted March 24, 2013 If you look at the front left wheelarch on original TR5`s you will see three holes with small rubber bungs in them. This was the original mounting point for the pump and those holes continued for production cars despite the pump being moved to the boot. John Sykes has one of the very early cars that still has the pump there as well. Stuart. Quote Link to post Share on other sites
tr6tuga Posted March 25, 2013 Report Share Posted March 25, 2013 I had the original Lucas pump rebuild with a kit from a known supplier, and after more than 10k and very hot weather use, no issue at all even when long tours and driving hard. Keep the original ! it makes sense Quote Link to post Share on other sites
tr6tuga Posted March 25, 2013 Report Share Posted March 25, 2013 I had the original Lucas pump rebuild with a kit from a known supplier, and after more than 10k and very hot weather use, no issue at all even when long tours and driving hard. Keep the original ! it makes sense Quote Link to post Share on other sites
Johncracknell Posted March 28, 2013 Report Share Posted March 28, 2013 Can anyone identify this pump type ? Thank you John Quote Link to post Share on other sites
OldBob Posted March 28, 2013 Report Share Posted March 28, 2013 John, I think it might be a Bosch 996 - one on fleabay recently for £hundreds Bob Quote Link to post Share on other sites
DIYBOSSCAT Posted March 29, 2013 Report Share Posted March 29, 2013 John, try this http://www.lucasinjection.com/bosch_and_lucas_fuel_pumps.htm Vince. Quote Link to post Share on other sites
Guest ntc Posted March 29, 2013 Report Share Posted March 29, 2013 John, I think it might be a Bosch 996 - one on fleabay recently for £hundreds Bob Yep looks like it but it will not work correctly there,it must be below the bottom of the tank Quote Link to post Share on other sites
Johncracknell Posted March 29, 2013 Report Share Posted March 29, 2013 Yep looks like it but it will not work correctly there,it must be below the bottom of the tank Thanks Neill It been their since I bought the car, appeared to work ok though, why should it be lower ? If it needs moving ill move it, just changed the fuel filter now it won't start, it has just under half a tank of fuel. I was going to go through the injector bleeding process tomorrow but can't believe you'd have to do that if it ran out of fuel, still new to the tr6 so don't profess to know really. John Quote Link to post Share on other sites
Guest ntc Posted March 29, 2013 Report Share Posted March 29, 2013 Hi John The Bosch pump cannot suck it needs a head of fuel. Ideally below the filter also, that is why your car won't start and it would also explain the noise you have with it. Hopefully not damaged too much. Quote Link to post Share on other sites
Jersey Royal Posted March 29, 2013 Report Share Posted March 29, 2013 Sorry you can keep your Lucas wiper motor, heard to many stories of bags frozen peas being required. I will stick with my Revington Bosch one, has to be 12 years old, lives under the wheel arch, and silent as a mouse. Cheers Guy Quote Link to post Share on other sites
Johncracknell Posted March 29, 2013 Report Share Posted March 29, 2013 Moving it tomorrow then .......... Thanks for the help guys. Quote Link to post Share on other sites
Guest ntc Posted March 29, 2013 Report Share Posted March 29, 2013 When you have done that John,remove coil lt leads and let it run for up to 5 minutes and it should bleed the system Quote Link to post Share on other sites
Johncracknell Posted March 30, 2013 Report Share Posted March 30, 2013 When you have done that John,remove coil lt leads and let it run for up to 5 minutes and it should bleed the system Moved the pump to a position lower than tank, and put another 10 litres of fresh juice into the tank .......... Just done the 5 minute run up, still won't start. Took no 2 and 5 injector pipes off, injectors full of petrol, but, plugs look dry !?. Can't understand what's going on here. It ran great until I changed the fuel filter. Quote Link to post Share on other sites
Guest ntc Posted March 30, 2013 Report Share Posted March 30, 2013 Sounds like you do not have enough pressure to pop the injectors,there is a small filter in the prv valve on some Quote Link to post Share on other sites
Jersey Royal Posted March 30, 2013 Report Share Posted March 30, 2013 Sounds like you do not have enough pressure to pop the injectors,there is a small filter in the prv valve on some Here it is Cheers Guy Quote Link to post Share on other sites
Johncracknell Posted March 30, 2013 Report Share Posted March 30, 2013 Thanks guy. I'll check to see if mine has one, After cranking you can hear air escaping from the fuel filler cap, is this normal, I haven't heard it before. Must mean that the fuel tank is under + pressure after the pump has been running. Quote Link to post Share on other sites
stuart Posted March 30, 2013 Report Share Posted March 30, 2013 There is also a similar small filter where the main fuel line enters the metering unit. Stuart. Quote Link to post Share on other sites
roy53 Posted March 30, 2013 Report Share Posted March 30, 2013 i take it that when you changed the filter you clamped the fuel pipe to stop the flow of fuel ? may be the pipe has not gone back to it's internal size there by restricting the fuel flow to the pump. If it ran well before you changed the filter it must be a problem in this area,even the filter. There is a breather hole in the fuel cap,may be yours is blocked,try running with the cap open. ROY Quote Link to post Share on other sites
jean Posted March 30, 2013 Report Share Posted March 30, 2013 I would think air is not escaping but entering the tank, what means no tank ventilation, never have seen pressure building up in the tank, mostly the other way around. Quote Link to post Share on other sites
Jersey Royal Posted March 30, 2013 Report Share Posted March 30, 2013 John, What sort of filter have you fitted? and is it fitted the right way around ie fuel in and out. Worth a check Cheers Guy Quote Link to post Share on other sites
Johncracknell Posted March 30, 2013 Report Share Posted March 30, 2013 It's definitely a pressure build up in tank, after running pump if you pop fuel cap there's a whoosh ( outbound ) .?? Quote Link to post Share on other sites
Jersey Royal Posted March 30, 2013 Report Share Posted March 30, 2013 (edited) It's definitely a pressure build up in tank, after running pump if you pop fuel cap there's a whoosh ( outbound ) .?? Fuel Vapours or gases will increase the pressure in the tank, as fuel is used vapour pressure will also be increased. Your tank should have two returns on the top of the tank, one from PRV the other the return from the Mu( runs from engine bay to tank) Check both of these pipes are not kinked. The tank should vent via the cap, have a look at the inside of the cap rubber there should be hole in it, only very small, maybe its gunked up I dont think these would stop the car from fireing. Cheers Guy Edited March 30, 2013 by Jersey Royal Quote Link to post Share on other sites
Johncracknell Posted March 31, 2013 Report Share Posted March 31, 2013 John, What sort of filter have you fitted? and is it fitted the right way around ie fuel in and out. Worth a check Cheers Guy Thanks Guy, The filter can only go one way or the bottom of the bowl won't fit/ seal. Good point though , I've discovered a weep in one of the pipes on the pump, so I will have to wait until next week for a replacement , guess the fuel attacked it. So don't want leak ing petrol in the boot. I wondered ( at 3am this morning ) if the pump could run backwards if reversed polarity and give me these..... 1. No start 2. Pressurised tank 3. Sleepless night Anyway, can't do anymore on it till I've got the seeping pipe fixed. Also it's going to be a very tight fit with the pump under the tank and still get the spare wheel in, hey ho classic cars eh ! John Quote Link to post Share on other sites
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