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2nd June 2024, 09:01 | #21 | ||
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As above by Mike but with photo of said electrical plug to remove. 1 2 Fuel line to put into bottle and make sure the flow is good without spluttering, if spluttering them UBP is not great. 3 Another thing to take into account is the HPFP regulator O-rings they can fail, easy fix at low cost of about £5.22p https://www.ebay.co.uk/itm/335297736474
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2nd June 2024, 12:32 | #22 |
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Thanks, luckily a friend was passing who is a mechanic, and with a few tests, he confirmed its the in-tank fuel pump theres nothing coming up from the tank, so i will order a new pump, has anyone got a idiots guide as to how you change the pump over, once its out of the tank.
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2nd June 2024, 19:02 | #23 | |
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Simon
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3rd June 2024, 14:41 | #24 |
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A bit of an update, Someone local to me made me an offer for the car as it stands, not as much as i expected, but I accepted, my new car, an MG F is being delivered on Friday, So thank you everyone for your help, its been much appreciated, I'm going to stay with the club, if i'm allowed to, but i'm still part of the rover/ MG scene, for those who might have an interest, its the 1.8 vvc and has done only 74000 It's going to be weird seeing my 75, being driven by someone else.
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10th June 2024, 12:18 | #25 |
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Hi Martin,
Sorry that I obviously missed this post, nearly a week ago. Sorry also that you've decided to part with your 75, but you've certainly had a run of bad luck with it. Do stay in touch, as you've said, and an MG F will always be welcome at the SE meets. Cheers Mike
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30th June 2024, 22:55 | #26 | ||
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1st July 2024, 07:31 | #27 | ||
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Are you saying that if the LP pumps don't run during cranking then the reason could be something other than a faulty crankshaft position sensor? Simon
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1st July 2024, 12:46 | #28 |
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No I'm saying that the pumps start running at key position II so are running before the engine starts to crank and therefore have nothing whatsoever to do with the crank sensor.
If you allow the pumps to time out and then try and start the car the pumps will start up again but l would have thought that they are getting the signal from the key being moved to position III. The evidence for this is that if you stall the engine the pumps will continue to run, and if they were dependent on the crankshaft signal then they should of course stop. |
1st July 2024, 13:24 | #29 | |||
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Thanks for coming back on this Mike because the diesel in fact behaves in almost the same way as the petrol engines.
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However, and this is the important bit, as soon as the key is advanced to position III (cranking) the pump supply from the ECM is dependent upon a signal from the crankshaft sensor. This is exactly what I said in post no. 9 and which you have disputed. Have a look at RAVE page 18-1-13 which says this: "The signal from the CKP sensor is required by the ECM for the following functions: ... To enable the fuel pump relay circuit (after the priming period)." Quote:
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I hope that this satisfactorily explains why what I said in post no. 9 is correct and it is a valid test for the crankshaft sensor on the M47R diesel engine. All the best, Simon
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1st July 2024, 20:47 | #30 |
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CanI suggest you carefully read what you have written above and you'll see that what you wrote in post #9 is incorrect.
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