Posted by richard schumacher on August 19, 2009, 4:05 am
> > Lu R wrote:
> >> My Prius dealer suggested I get my 2004 Prius jets cleaned as its been at
> >> least 2 years since they were last done..I cant see where in the service
> >> manual where this item needs doing at any milage or age of my vehicle.
> >> Any ideas plse folks? Should I tell him to forget the jets as its going
> >> cost almost $00 more for them alone to be cleaned.
> >
> >
> > It's crap
> > spend another 9cpl and fill it with Shell V-Power(or PULP from a Shell
> > branded non Coles servo), BP Ulimate or Caltex Vortex, these all have an
> > injector cleaner
> > do this every 3rd or 4th tank full
> >
> > $00 is a bit more than Ford wanted for a bottle of injector cleaner
> >
> >
> > Kev
>
> Cheaper still, buy some E10 fuel. The ethanol will be just as good at
> cleaning injectors as the usual 'dump it in the tank' liquids.
Ditto that. If you use E10 you're getting injector cleaner with every
fillup.
Posted by Charles on August 19, 2009, 6:24 am
richard schumacher wrote:
>
>>> Lu R wrote:
>>>> My Prius dealer suggested I get my 2004 Prius jets cleaned as its been at
>>>> least 2 years since they were last done..I cant see where in the service
>>>> manual where this item needs doing at any milage or age of my vehicle.
>>>> Any ideas plse folks? Should I tell him to forget the jets as its going
>>>> cost almost $00 more for them alone to be cleaned.
>>>
>>> It's crap
>>> spend another 9cpl and fill it with Shell V-Power(or PULP from a Shell
>>> branded non Coles servo), BP Ulimate or Caltex Vortex, these all have an
>>> injector cleaner
>>> do this every 3rd or 4th tank full
>>>
>>> $00 is a bit more than Ford wanted for a bottle of injector cleaner
>>>
>>>
>>> Kev
>> Cheaper still, buy some E10 fuel. The ethanol will be just as good at
>> cleaning injectors as the usual 'dump it in the tank' liquids.
>
> Ditto that. If you use E10 you're getting injector cleaner with every
> fillup.
All that happens when they clean the injectors is a pressure pak can of
solvent??, is connected to the fuel line and this solvent goes through
the system and that costs heaps. Not worth the effort or money, after
market sales gimmick.
Posted by Toby Ponsenby on August 19, 2009, 9:04 am
On Wed, 19 Aug 2009 16:24:38 +1000, Charles blathered on in:
> richard schumacher wrote:
>>
>>>> Lu R wrote:
>>>>> My Prius dealer suggested I get my 2004 Prius jets cleaned as its been at
>>>>> least 2 years since they were last done..I cant see where in the service
>>>>> manual where this item needs doing at any milage or age of my vehicle.
>>>>> Any ideas plse folks? Should I tell him to forget the jets as its going
>>>>> cost almost $00 more for them alone to be cleaned.
>>>>
>>>> It's crap
>>>> spend another 9cpl and fill it with Shell V-Power(or PULP from a Shell
>>>> branded non Coles servo), BP Ulimate or Caltex Vortex, these all have an
>>>> injector cleaner
>>>> do this every 3rd or 4th tank full
>>>>
>>>> $00 is a bit more than Ford wanted for a bottle of injector cleaner
>>>>
>>>>
>>>> Kev
>>> Cheaper still, buy some E10 fuel. The ethanol will be just as good at
>>> cleaning injectors as the usual 'dump it in the tank' liquids.
>>
>> Ditto that. If you use E10 you're getting injector cleaner with every
>> fillup.
>
>
> All that happens when they clean the injectors is a pressure pak can of
> solvent??, is connected to the fuel line and this solvent goes through
> the system and that costs heaps. Not worth the effort or money, after
> market sales gimmick.
OK, some thoughts on this wouldn't go astray.
Given that the injectors of a bosch pattern EFI car are positioned in the
incoming air stream so as to have the atomised spray 'join' the incoming
air which BTW is presumably filtered already.
And given that the PCV systems in use actually put their output into the
system WITH heaps of that self same incoming air, and that getting "dirt"
into the crankcase of an engine is in itself relatively difficult - in
point of fact it would need to be deliberately introduced, else be the
by-product of atrocious maintenence practices...
And given that the fuel itself is provided by the OilCos essentially
'clean' - under pain of having their arses exposed by a comtaimiation
debacle.
And given that all EFI vehicles get quite reasonable filtering systems
stock standard.
And given that the petrol and for that matter ethanol (is)/are (a) cleaning
agent(s) anyway,
How the fuck do injectors get 'dirty' anyway?
I can understand 'worn', but not dirty.
Additionally recentlly I had reason to remove a fuel tank from my machine
that had to that point travelled 350,000Kms over a period of 9 years.
there was not even a hint of dirt (or any patriculate matter) or 'water'
in the bottom of the (plastic) tank. Nothing. Not a zot. Fuck all, even.
Discuss:-)
--
Toby
Posted by Noddy on August 19, 2009, 10:01 am
> How the fuck do injectors get 'dirty' anyway?
> I can understand 'worn', but not dirty.
They generally don't, at least not on the inside anyway. However they're
usually positioned close enough to the inlet valve to allow carbon "blow
back" to form on the nozzle, and in some cases this can be bad enoug to
affect the spray pattern after a while.
Does that mean there's any benefit in "sonic cleaning" or any other process
where the injectors need to be removed from the engine and run through some
"Dr. Zooks magical elixir" machine at some ridiculous price that gets close
to actually buying new injectors?
Of course not.
On the other hand, there are some that need nothing more than periodic
removal and cleaning the tips with some solvent and an old toothbrush to
restore them to as new condition.
> Additionally recentlly I had reason to remove a fuel tank from my machine
> that had to that point travelled 350,000Kms over a period of 9 years.
> there was not even a hint of dirt (or any patriculate matter) or 'water'
> in the bottom of the (plastic) tank. Nothing. Not a zot. Fuck all, even.
> Discuss:-)
I've seen some cars hold a fair amount of rubbish in the bottoms of their
tanks, and some of it has looked like mud, but very little of it (if any)
seems to find it's way to the injectors.
--
Regards,
Noddy.
Posted by D Walford on August 19, 2009, 10:46 am
Charles wrote:
> richard schumacher wrote:
>>
>>>> Lu R wrote:
>>>>> My Prius dealer suggested I get my 2004 Prius jets cleaned as its
>>>>> been at least 2 years since they were last done..I cant see where
>>>>> in the service manual where this item needs doing at any milage or
>>>>> age of my vehicle. Any ideas plse folks? Should I tell him to
>>>>> forget the jets as its going cost almost $00 more for them alone
>>>>> to be cleaned.
>>>>
>>>> It's crap
>>>> spend another 9cpl and fill it with Shell V-Power(or PULP from a
>>>> Shell branded non Coles servo), BP Ulimate or Caltex Vortex, these
>>>> all have an injector cleaner
>>>> do this every 3rd or 4th tank full
>>>>
>>>> $00 is a bit more than Ford wanted for a bottle of injector cleaner
>>>>
>>>>
>>>> Kev
>>> Cheaper still, buy some E10 fuel. The ethanol will be just as good at
>>> cleaning injectors as the usual 'dump it in the tank' liquids.
>>
>> Ditto that. If you use E10 you're getting injector cleaner with every
>> fillup.
>
>
> All that happens when they clean the injectors is a pressure pak can of
> solvent??, is connected to the fuel line and this solvent goes through
> the system and that costs heaps. Not worth the effort or money, after
> market sales gimmick.
To do it properly the injectors need to be removed then cleaned and
tested on a proper machine.
Daryl
> >> My Prius dealer suggested I get my 2004 Prius jets cleaned as its been at
> >> least 2 years since they were last done..I cant see where in the service
> >> manual where this item needs doing at any milage or age of my vehicle.
> >> Any ideas plse folks? Should I tell him to forget the jets as its going
> >> cost almost $00 more for them alone to be cleaned.
> >
> >
> > It's crap
> > spend another 9cpl and fill it with Shell V-Power(or PULP from a Shell
> > branded non Coles servo), BP Ulimate or Caltex Vortex, these all have an
> > injector cleaner
> > do this every 3rd or 4th tank full
> >
> > $00 is a bit more than Ford wanted for a bottle of injector cleaner
> >
> >
> > Kev
>
> Cheaper still, buy some E10 fuel. The ethanol will be just as good at
> cleaning injectors as the usual 'dump it in the tank' liquids.