Re: [Biofuel] VW Passat TDi

[Thomas Kelly]

 Could it be polymerized fuel?  BD, especially that made from soy oil 
doesn't store well (4 - 6 months?). I've read/heard that polymerized fuel 
can clog filters. This may be a problem for commercial producers in the US. 
Homebrewers shouldn't have much trouble using their BD within a few months.

 Last summer I filled a 55 gal drum w. good BD in early June. I made the 
mistake of using a piece of copper tubing as the fuel line extending to 
bottom of the barrel. By September the beautifully clear BD was cloudy and 
no longer passed the methanol quality test. Consensus on the list was that 
the fuel polymerized  .  hastened by the copper tubing. It burned fine 
in my oil-fired boiler, but I suspect it would have caused problems in my 
car.

 My polymerized BD was cloudy. If you pumped the fuel you might not 
notice, and if it's a blend (B20) the cloudiness might not be apparent.

 Tom



- Original Message - 
From: "Mike Weaver" <[EMAIL PROTECTED]>
To: 
Sent: Monday, August 06, 2007 11:48 AM
Subject: Re: [Biofuel] VW Passat TDi


>From my experience it's probably caused by a slightly incomplete
reaction or a bad wash.

YMMV

Andres Secco wrote:

>Right. I saw it transparent also  like gelatine.
>Potato protein or animal protein, Animal is white. Depends on what was 
>fried
>with the raw oil.
>
>
>Is it clogged with a whitish-looking gel?
>
>Andres Secco wrote:
>
>
>
>>If it is 100% biodiesel can be  the fuel filter. This device is clogged by
>>some incomplete reacted portions of the oil.
>>There are some proteins wich forms a gelatine around the filtering system.
>>It is a common problem and can be solved in the biodiesel factory adding
>>some products to precipitate proteins.
>>If it is 20% blend there is a poor biodiesel manufacturing practice to 
>>save
>>methanol or dirty oil being used and unproperly treated before reaction.
>>
>>----- Original Message - 
>>From: "fox mulder" <[EMAIL PROTECTED]>
>>To: 
>>Sent: Monday, August 06, 2007 1:15 PM
>>Subject: Re: [Biofuel] VW Passat TDi
>>
>>
>>
>>
>>
>>
>>>Dear All,
>>>I have VW Passat TDi. I have been using the biodiesel
>>>for 2 and 1/2 years, I find that the fuel filter
>>>begins to clog up after 6 months. Loss of power
>>>becomes apparent. Further at speed fuel supply cuts
>>>off. After coming to a halt, the car does not start
>>>again. After half an hour, the car restarts. Does any
>>>one know whether its the fuel filter or the fuel pump?
>>>regards
>>>
>>>fox
>>>
>>>
>>>___
>>>Yahoo! Mail is the world's favourite email. Don't settle for less, sign 
>>>up
>>>for
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>>>
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>>>messages):
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>>>
>>>
>>>
>>>
>>>
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>>
>>
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Re: [Biofuel] VW Passat TDi

[Mike Weaver]

 From my experience it's probably caused by a slightly incomplete 
reaction or a bad wash.

YMMV

Andres Secco wrote:

>Right. I saw it transparent also  like gelatine.
>Potato protein or animal protein, Animal is white. Depends on what was fried 
>with the raw oil.
>
>
>Is it clogged with a whitish-looking gel?
>
>Andres Secco wrote:
>
>  
>
>>If it is 100% biodiesel can be  the fuel filter. This device is clogged by
>>some incomplete reacted portions of the oil.
>>There are some proteins wich forms a gelatine around the filtering system.
>>It is a common problem and can be solved in the biodiesel factory adding
>>some products to precipitate proteins.
>>If it is 20% blend there is a poor biodiesel manufacturing practice to save
>>methanol or dirty oil being used and unproperly treated before reaction.
>>
>>- Original Message - 
>>From: "fox mulder" <[EMAIL PROTECTED]>
>>To: 
>>Sent: Monday, August 06, 2007 1:15 PM
>>Subject: Re: [Biofuel] VW Passat TDi
>>
>>
>>
>>
>>
>>
>>>Dear All,
>>>I have VW Passat TDi. I have been using the biodiesel
>>>for 2 and 1/2 years, I find that the fuel filter
>>>begins to clog up after 6 months. Loss of power
>>>becomes apparent. Further at speed fuel supply cuts
>>>off. After coming to a halt, the car does not start
>>>again. After half an hour, the car restarts. Does any
>>>one know whether its the fuel filter or the fuel pump?
>>>regards
>>>
>>>fox
>>>
>>>
>>>___
>>>Yahoo! Mail is the world's favourite email. Don't settle for less, sign up
>>>for
>>>your free account today
>>>http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter07.html
>>>
>>>___
>>>Biofuel mailing list
>>>Biofuel@sustainablelists.org
>>>http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org
>>>
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>>>http://journeytoforever.org/biofuel.html
>>>
>>>Search the combined Biofuel and Biofuels-biz list archives (50,000
>>>messages):
>>>http://www.mail-archive.com/biofuel@sustainablelists.org/
>>>
>>>
>>>
>>>  
>>>
>>__
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>>
>>
>>
>>
>
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Re: [Biofuel] VW Passat TDi

[Andres Secco]

Right. I saw it transparent also  like gelatine.
Potato protein or animal protein, Animal is white. Depends on what was fried 
with the raw oil.


Is it clogged with a whitish-looking gel?

Andres Secco wrote:

>If it is 100% biodiesel can be  the fuel filter. This device is clogged by
>some incomplete reacted portions of the oil.
>There are some proteins wich forms a gelatine around the filtering system.
>It is a common problem and can be solved in the biodiesel factory adding
>some products to precipitate proteins.
>If it is 20% blend there is a poor biodiesel manufacturing practice to save
>methanol or dirty oil being used and unproperly treated before reaction.
>
>- Original Message - 
>From: "fox mulder" <[EMAIL PROTECTED]>
>To: 
>Sent: Monday, August 06, 2007 1:15 PM
>Subject: Re: [Biofuel] VW Passat TDi
>
>
>
>
>>Dear All,
>>I have VW Passat TDi. I have been using the biodiesel
>>for 2 and 1/2 years, I find that the fuel filter
>>begins to clog up after 6 months. Loss of power
>>becomes apparent. Further at speed fuel supply cuts
>>off. After coming to a halt, the car does not start
>>again. After half an hour, the car restarts. Does any
>>one know whether its the fuel filter or the fuel pump?
>>regards
>>
>>fox
>>
>>
>> ___
>>Yahoo! Mail is the world's favourite email. Don't settle for less, sign up
>>for
>>your free account today
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>>
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>>messages):
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>>
>>
>>
>
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Re: [Biofuel] VW Passat TDi

[Mike Weaver]

Is it clogged with a whitish-looking gel?

Andres Secco wrote:

>If it is 100% biodiesel can be  the fuel filter. This device is clogged by 
>some incomplete reacted portions of the oil.
>There are some proteins wich forms a gelatine around the filtering system. 
>It is a common problem and can be solved in the biodiesel factory adding 
>some products to precipitate proteins.
>If it is 20% blend there is a poor biodiesel manufacturing practice to save 
>methanol or dirty oil being used and unproperly treated before reaction.
>
>- Original Message - 
>From: "fox mulder" <[EMAIL PROTECTED]>
>To: 
>Sent: Monday, August 06, 2007 1:15 PM
>Subject: Re: [Biofuel] VW Passat TDi
>
>
>  
>
>>Dear All,
>>I have VW Passat TDi. I have been using the biodiesel
>>for 2 and 1/2 years, I find that the fuel filter
>>begins to clog up after 6 months. Loss of power
>>becomes apparent. Further at speed fuel supply cuts
>>off. After coming to a halt, the car does not start
>>again. After half an hour, the car restarts. Does any
>>one know whether its the fuel filter or the fuel pump?
>>regards
>>
>>fox
>>
>>
>> ___
>>Yahoo! Mail is the world's favourite email. Don't settle for less, sign up 
>>for
>>your free account today 
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>>
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>>
>>Search the combined Biofuel and Biofuels-biz list archives (50,000 
>>messages):
>>http://www.mail-archive.com/biofuel@sustainablelists.org/
>>
>>
>>
>
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>  
>


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Re: [Biofuel] VW Passat TDi

Hi Fox

Check with these guys, they know more about TDI's than anyone around.

http://www.tdiclub.com/




-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of fox mulder
Sent: Monday, August 06, 2007 10:15 AM
To: biofuel@sustainablelists.org
Subject: Re: [Biofuel] VW Passat TDi

Dear All,
I have VW Passat TDi. I have been using the biodiesel for 2 and 1/2 years, I 
find that the fuel filter begins to clog up after 6 months. Loss of power 
becomes apparent. Further at speed fuel supply cuts off. After coming to a 
halt, the car does not start again. After half an hour, the car restarts. Does 
any one know whether its the fuel filter or the fuel pump?
regards

fox


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Re: [Biofuel] VW Passat TDi

[Mike Weaver]

Also check the fuel return system - the filter has a return - be sure 
the lines are clear.  I added an inexpensive and (easily replaced) clear 
inline filter before the big expensive filter and I've never had any 
problems with the main fuel filter.  When I did finally change it at 60k 
, it had a fair amount of gunk in it but was still working.
If you fiddle with your fuel lines remember to clamp the line leading 
out of the filter and into the pump so it doesn't fill up w/ air.

Kirk McLoren wrote:

> The only auto problem similar to what you describe that I am familiar 
> with was a friend changed his gas cap and the new one wasnt 
> venting. The engine would starve and after a while enough air got in 
> the tank that you could start it. I guess some tanks have a vent 
> separate from the cap.
>  
> Kirk
>
> */fox mulder <[EMAIL PROTECTED]>/* wrote:
>
> Dear All,
> I have VW Passat TDi. I have been using the biodiesel
> for 2 and 1/2 years, I find that the fuel filter
> begins to clog up after 6 months. Loss of power
> becomes apparent. Further at speed fuel supply cuts
> off. After coming to a halt, the car does not start
> again. After half an hour, the car restarts. Does any
> one know whether its the fuel filter or the fuel pump?
> regards
>
> fox
>
>
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Re: [Biofuel] VW Passat TDi

[Kirk McLoren]

The only auto problem similar to what you describe that I am familiar with was 
a friend changed his gas cap and the new one wasnt venting. The engine would 
starve and after a while enough air got in the tank that you could start it. I 
guess some tanks have a vent separate from the cap.
   
  Kirk

fox mulder <[EMAIL PROTECTED]> wrote:
  Dear All,
I have VW Passat TDi. I have been using the biodiesel
for 2 and 1/2 years, I find that the fuel filter
begins to clog up after 6 months. Loss of power
becomes apparent. Further at speed fuel supply cuts
off. After coming to a halt, the car does not start
again. After half an hour, the car restarts. Does any
one know whether its the fuel filter or the fuel pump?
regards

fox 


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Re: [Biofuel] VW Passat TDi

[Andres Secco]

If it is 100% biodiesel can be  the fuel filter. This device is clogged by 
some incomplete reacted portions of the oil.
There are some proteins wich forms a gelatine around the filtering system. 
It is a common problem and can be solved in the biodiesel factory adding 
some products to precipitate proteins.
If it is 20% blend there is a poor biodiesel manufacturing practice to save 
methanol or dirty oil being used and unproperly treated before reaction.

- Original Message - 
From: "fox mulder" <[EMAIL PROTECTED]>
To: 
Sent: Monday, August 06, 2007 1:15 PM
Subject: Re: [Biofuel] VW Passat TDi


> Dear All,
> I have VW Passat TDi. I have been using the biodiesel
> for 2 and 1/2 years, I find that the fuel filter
> begins to clog up after 6 months. Loss of power
> becomes apparent. Further at speed fuel supply cuts
> off. After coming to a halt, the car does not start
> again. After half an hour, the car restarts. Does any
> one know whether its the fuel filter or the fuel pump?
> regards
>
> fox
>
>
>  ___
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> for
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>
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Re: [Biofuel] VW Passat TDi

[fox mulder]

Dear All,
I have VW Passat TDi. I have been using the biodiesel
for 2 and 1/2 years, I find that the fuel filter
begins to clog up after 6 months. Loss of power
becomes apparent. Further at speed fuel supply cuts
off. After coming to a halt, the car does not start
again. After half an hour, the car restarts. Does any
one know whether its the fuel filter or the fuel pump?
regards

fox 


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