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Old 27 June 2009, 23:00   #11
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If the WVO is too thick adding some petrol works wonders - especially in colder weather!!!
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Old 28 June 2009, 05:40   #12
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Originally Posted by codprawn View Post
If the WVO is too thick adding some petrol works wonders - especially in colder weather!!!
yeah, you dont want to add too much though, I have a 300tdi piston as a paperweight from an engine run on petrol and wvo mix, Both halves of it
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Old 28 June 2009, 06:04   #13
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I agree you need to avoid thicker fuels. I changed the fuel filter on my Discovery - first time in 75,000 miles - it was spotless!!!
Well, yes, probably because all the s**t in your fuel went straight through it! Modern injectors can have clearances as small as a couple of microns - if your fuel filter caught anything smaller than 100 microns I would be surprised. We tested a lot of competitor filters (to ISO4020 for anyone that is interested) and most of them would have lasted forever because all the test contaminant went straight through them!

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Some of the "modern" engines out there aren't so modern after all - the Passat I hired a few months ago still had the original 1.9tdi engine in it - yuch!!!
It may be the 'original' 1,9 tdi engine block, but does it have the same power output as earlier Passats? Same emissions? Same fuel pressure? Same fuel pump? Same injectors?

Cheers

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Old 28 June 2009, 08:29   #14
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If the WVO is too thick adding some petrol works wonders - especially in colder weather!!!
A tiny bit of gasoline in the tank will also lift any varnish off the tank walls as well. Very important to have a couple of spare fuel filters ready since such an effective flush will clog the existing ones in a hurry.
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Old 28 June 2009, 09:04   #15
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Well, yes, probably because all the s**t in your fuel went straight through it! Modern injectors can have clearances as small as a couple of microns - if your fuel filter caught anything smaller than 100 microns I would be surprised. We tested a lot of competitor filters (to ISO4020 for anyone that is interested) and most of them would have lasted forever because all the test contaminant went straight through them!



It may be the 'original' 1,9 tdi engine block, but does it have the same power output as earlier Passats? Same emissions? Same fuel pressure? Same fuel pump? Same injectors?

Cheers

Chris
Thats shocking - whats the point in a filter then? Why have I seen filters marked at 30 and 5 microns? Surely they can't ALL be faulty???

No it didn't have the same power as early passats - it actually had LESS - 105bhp to be exact. Totally gutless - how the hell they can sell a car like that is beyond me.

And I would guess the parts are the same - engine looked identical just down on power cos of extra emissions crap.
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Old 28 June 2009, 12:55   #16
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Thats shocking - whats the point in a filter then? Why have I seen filters marked at 30 and 5 microns? Surely they can't ALL be faulty???
OK, I exaggerated a tad - most of the contaminant went through, not all

There are three ways to rate a filter:

http://www.machinerylubrication.com/...articleid=1289

Fuel filters are slightly different but the principle is broadly the same.

Guess which of the three filter rating methods a lot of filter companies use?

Cheers

Chris
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