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Author Topic: Poxy Misfire on the 3.2  (Read 1819 times)

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Kevin Wood

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Re: Poxy Misfire on the 3.2
« Reply #30 on: 03 September 2014, 09:16:13 »

Well, that's a new one on me too. Very bizarre fault! Well done for sticking with it until it's found.

I agree with Terry that the fuel pump pumps at a constant rate unrelated to engine load. What I think was happening is that damage to the fuel pump, or the restriction of the stone partially blocking its' inlet, had cause its' flow rate to drop such that, as soon as the engine was under load, it couldn't keep the fuel pressure up.

Either way, it's fixed... :y
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terry paget

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Re: Poxy Misfire on the 3.2
« Reply #31 on: 03 September 2014, 10:18:38 »

Cheers Chris, cant be that then as the issue has been going for a while long since the dual ram removal.... Took the car for a good run and it disappeared but my luck was short lived as once the car got to hot it returned and made the car pop and bang!
Dual ram removal? I did not understand this, it's fundamental to the engine design. Please expand.
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P6UL K

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Re: Poxy Misfire on the 3.2
« Reply #32 on: 03 September 2014, 10:48:36 »

Cheers Chris, cant be that then as the issue has been going for a while long since the dual ram removal.... Took the car for a good run and it disappeared but my luck was short lived as once the car got to hot it returned and made the car pop and bang!
Dual ram removal? I did not understand this, it's fundamental to the engine design. Please expand.

Terry - Said stone is in the picture below the total cost... And I have no dual ram... It went long ago since replacing with a Mantzel Airbox  8)
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P6UL K

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Re: Poxy Misfire on the 3.2
« Reply #33 on: 03 September 2014, 10:51:59 »

Well, that's a new one on me too. Very bizarre fault! Well done for sticking with it until it's found.

I agree with Terry that the fuel pump pumps at a constant rate unrelated to engine load. What I think was happening is that damage to the fuel pump, or the restriction of the stone partially blocking its' inlet, had cause its' flow rate to drop such that, as soon as the engine was under load, it couldn't keep the fuel pressure up.

Either way, it's fixed... :y

Thanks Kevin, I was determined to get to the end of this issue! Thankfully it wasn't as complicated as the issues I was having with the diesel hearse... Which is now long gone!
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2008 Vx Vectra 2.8T VXR V6 Estate - ExNI Police -For fun. 1996 'N' Isuzu Trooper 3.1TD - For the lanes. 2000 'W' Vx Omega 2.5TD Saloon CDX - Pool car. 1985 'B' Ford Escort Cabriolet 1.6 Rs Turbo - Summer

omega3000

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Re: Poxy Misfire on the 3.2
« Reply #34 on: 03 September 2014, 11:00:05 »

These omens keep you on your toes don't they  ::)
Well done for your persistence though , one to note  :y
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Kevin Wood

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Re: Poxy Misfire on the 3.2
« Reply #35 on: 03 September 2014, 11:32:58 »

... Thankfully it wasn't as complicated as the issues I was having with the diesel hearse...

You know where you are with a proper engine. ;)
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