Home > Tdi > Fuel System Advice Needed Please |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7664 |
Not sure on this other than maybe the pump was tweaked before and is now std? But then it would feel less grunty after surely?
Anything else changed/been added? Tyres/air intake? How does a vane seize on a 300? Assuming std turbo? Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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12th Mar 2018 8:50pm |
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Blackhat90 Member Since: 31 Dec 2016 Location: Forfar Posts: 86 |
I think you were doing really well at 30mpg,, i monitered my fuel consumption years ago, best was 32mpg [ on motorway @55mph] ,, normal driving 27/-29 mpg. , the best figures i get ,is in the summer i remove the front prop , and lock the center diff, Then i get about 34mpg,
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12th Mar 2018 10:16pm |
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foxhound Member Since: 02 Mar 2013 Location: United Kingdom Posts: 357 |
Hi. No nothing else changed at all. I saw the old turbo. the vane had seized half open and nothing would free it. No idea how that happened nor when! 110 Defender 300tdi & Penman trailer with ally exped top and roof tent |
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13th Mar 2018 10:04am |
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foxhound Member Since: 02 Mar 2013 Location: United Kingdom Posts: 357 |
that center diff trick is worth remembering. thanks 110 Defender 300tdi & Penman trailer with ally exped top and roof tent |
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13th Mar 2018 10:05am |
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Blackhat90 Member Since: 31 Dec 2016 Location: Forfar Posts: 86 |
Yeh, it works fine, free"s up more bhp too, and i"v been doing this for 5 years now, with no damage to transmission ,,
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13th Mar 2018 3:08pm |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7664 |
The wastegate you mean maybe? Vanes are fixed on a 300 turbo. Are you driving it quicker/differently? Assuming wastegate in above you will now get more boost so more go as it actuates fip pin. Before you would of had less boost and used less fuel as fip pin wouldn't move down as much if wastegate was stuck part open. Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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13th Mar 2018 4:48pm |
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foxhound Member Since: 02 Mar 2013 Location: United Kingdom Posts: 357 |
James
I probably mean the wastegate but vane was the term used at the garage. I did drive quicker to start but am pacing myself now. Interesting point about more boost and fueling, thanks. Does FIP stand for fuel injector pin or...? thanks again James. Jerry 110 Defender 300tdi & Penman trailer with ally exped top and roof tent |
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14th Mar 2018 10:06am |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7664 |
FiP = Fuel injection Pump Cheers
James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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14th Mar 2018 7:50pm |
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foxhound Member Since: 02 Mar 2013 Location: United Kingdom Posts: 357 |
Just had a call from someone suggesting I check the fuel pump timing as this caused a similar problem in his 300tdi of the same age. 110 Defender 300tdi & Penman trailer with ally exped top and roof tent
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15th Mar 2018 10:18am |
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jst Member Since: 14 Jan 2008 Location: Taunton Posts: 7664 |
Fuel pump timing could be advanced slightly which would give more power and probably use more fuel.
Does it smoke at all? on start up, over run? underload? Does it start first turn? Cheers James 110 XS Utility 130 Puma Station wagon/camper (in the making) 90 Puma Hardtop |
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15th Mar 2018 8:43pm |
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foxhound Member Since: 02 Mar 2013 Location: United Kingdom Posts: 357 |
James
When the work was done there were virtually no emissions, close to zero but mpg was 24 or under. the guy who fitted it all turned a nut on the fuel pump a quarter turn. this reduced fuel use and increased mpg to 26 but it does produce a little more smoke - bigger start up puff. The engine doesn't start quite as quickly as it used to. does this mean much to you? best jerry 110 Defender 300tdi & Penman trailer with ally exped top and roof tent |
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16th Mar 2018 11:05am |
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