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28th August 2018, 10:50 | #21 |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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That a small leak will upset the fuelling until the lambda sensors take control by which time the expansion of the exhaust system will have sealed the leak.
This happens very quickly so you’ll need to support the car safely, start the engine and immediately run the palm of a hand close to, but not touching obviously, the joints in the exhaust system (including the sensor ports). If there’s a small leak you will feel it, but you have to act quickly. Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
28th August 2018, 11:32 | #22 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Thanks Simon, luckily I have a pit in the garage so I'll take a look (or feel). I have heard some popping in the exhaust when starting but rather think that's unburnt fuel.
Mike |
17th September 2018, 15:31 | #23 |
I really should get out more.......
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Update
After 2 weeks on holiday I had time to try and get my daughter's car back on the road.
No exhaust leaks found but by the time I get the car running properly the exhaust is too hot to touch. But, after buying a fuel pressure gauge it reads only 2 bar, and pressure drops almost immediately after switching off, no fuel leaked when I disconnected the gauge. Out to try my own V6, fuel leaked when connecting the gauge even those it's not been used for a couple of hours. Fuel pressure almost 4 bar, switched engine off and pressure stays at 3.5. So does this mean that the pump is defective, or the regulator on the fuel rail or both? Regards |
18th September 2018, 07:23 | #24 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Simon
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18th September 2018, 09:19 | #25 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Thanks Simon but early type filter
Mike |
22nd September 2018, 15:26 | #26 |
I really should get out more.......
Rover 75 Saloon Join Date: Jul 2011
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Hopefully end of thread
Opened up the pump inspection hatch to replace the 2001 pump with a 2002,and found the plumbing is different. But then noticed, at the bottom of the tank, a white platform with two bayonet connectors, and two loose hoses which should obviously be fitted on to the platform. A quick inspection of the empty tank of the 2002 donor, no white platform.
Drained the right side of the tank and lifted the pump out to inspect the fitting. Not much to do, refitted the bayonet connectors ensuring a good click, retested fuel pressure which now read almost 4 bar, car started immediately. How those bayonet connectors had worked themselves loose is anyone’s guess. But I now know where to look if it’s an early car with low fuel pressure. Thanks to all contributors. |
22nd September 2018, 21:21 | #27 |
Posted a thing or two
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Wow must of been an Audi 1, those Germans sure know how to build em!!
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I am NOT a number, I am 75 Last edited by Vanbursta; 22nd September 2018 at 21:23.. |
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