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Registered:
April 2003
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injector cleaning
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Mon, 01 March 2004 23:43
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hi guys,
I recently took a trip to the mechanics and the dude suggested i have my injectors cleaned on this digital machine he had up n running. I was just wondering if this was worth it, (new rubber seals and acid cleaned) for $400.
Or would a whole new set of injectors be more worthy?
engine is a 4AGZE AFM.
thanks!
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Toymods Board Member
I supported Toymods
Location:
Turramurra, Sydney.
Registered:
May 2002
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Re: injector cleaning
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Tue, 02 March 2004 01:20
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$400 is a dirty great rip off, even if that included removal & installation. I recently paid $100 to have a set of GZE injectors cleaned & flowed, which is around the going price.
Go somewhere else, & never go back to that mechanic. I mean really, what a great suggestion, pay him $400 to do a relatively easy & quick job. Did he give any reason to clean the injectors?
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Location:
Epping, Sydney
Registered:
April 2003
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Re: injector cleaning
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Tue, 02 March 2004 01:33
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perhaps the $400 was for removal and stuff too?
still way exxy but
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Location:
Sydney
Registered:
December 2003
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Re: injector cleaning
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Tue, 02 March 2004 02:51
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Off car injection cleaning is about $30 an injector. They normally charge your mechanic $20 each, so the mechanic can then charge you $30 each plus the removal and refit. Car like a VL Commodore is expensive to get the injectors out (heaps of stuff to remove including intake manifold to get to the injectors). A VN - VX Commodore is about 10 minutes.
So it is really dependant on the car. My AE82 twin cam was about 20 minutes.
So 4 x $30, plus (say) 1 hour x $60 TOTAL = $180 max
Also, they do not run acid through the injector to clean it. It is a straight hydrocarbon to remove the gum buildup in the pintle chamber.
At the risk of upsetting some manufacturers/suppliers/sales reps, I will say that the following is my opinion.
Off car injection cleaning (which is what we have been pricing)is the ONLY way to do clean injectors.
On car cleaning, or the use of the fuel tank injector cleaning is a complete waste of time. With off car injector cleaning you get the following benefits:
1) Drip test - see if any of the injectors are leaking off cycle
2) Flow test - see if they all deliver balanced/equal volumes
3) Spray test - see that they all spray evenly
4) Filter baskets replaced
5) Proper cleaning of the pintle chamber, which cannot be achieved with the fuel tank additives.
In fairness to the suppliers of the fuel tank additives - they will help keep your injectors clean, ONCE THEY ARE CLEAN.
However, at $10 per tankful of petrol, you would spend nearly $500 on additive every year. Injector cleaning every 100,000km works out to be $45 per year for a far better result.
That's my experience and opinion.
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Location:
sydney
Registered:
June 2003
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Re: injector cleaning
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Tue, 02 March 2004 03:27
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at my work we only charge $18 each (retail)
plus if r&r was 1 hour ($66) for a 4cyl u would only be looking at $138. i think $400 is a ripoff even if u have a v12 
the injectors are cleaned in an ultrasonic bath,then backflushed then tested for leaks,flow and spray pattern. all seals, filter baskets and pintle caps are replaced.
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Registered:
April 2003
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Re: injector cleaning
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Tue, 02 March 2004 05:32
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thanks for ur help guys, muchly appreciated.
So it would be worthy just to get em cleaned somewhere else that is cheaper?
whats the going price for a whole new set?
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Location:
Melbourne
Registered:
May 2002
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Re: injector cleaning
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Tue, 02 March 2004 07:23
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Maybe he quoted you $40 dollars lol
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