injectors

[Petemcc]

I have a 91 4runner/surf with a 3vze engine (3L v6 Petrol). The old girl has done 270000ks and as these motors do, uses shit loads of gas and has #### all power for its size.
Would it be worth doing anything to the injectors? Either replacing them or reconditioning?? Anybody suggest any good places do get either of these done? I am in invercargill for the next 2 months but then will be back up in chch so either place will do.

Cheers Pete

[Aaron]

You can get an injector clean done on the car where they disconnect the fuel system and connect a pressurised injector clean mix for the engine to run on.

Not sure who does it though, wynns had a system so they might be able to reccomend a place to get it done.

[NJV6]

Yes, Diesel specialists in Invercargill. They do petrols as well....

[Petemcc]

do you reckin its worth it? has anyone had a simila thing done to a petrol. i know it can be quite benafitial to a diesel

[penetrator]

let us know how you get on if you do that pete - i looked at doing it about this time last year and asked a few questions on here - seems some people have had good experiences with it and others not so good. If it works a treat though ill be down there with my thirsty girl for a treatment too!

[NJV6]

I heard the ad on the radio again today - Its actually, Diesel Tune ups.....

[Kent]

I had a similar thing to this done a couple of years ago with my 4.2 Safari, and it was great. A lot cheaper then getting a proper injector clean done, and deffinetly cheaper than replacing the injectors. I can't remember prices now, but around $300 - $400 sounds familar, may be wrong though. But yea she never smoked again and there was deffinetly an increase in power. I remember the mechanic that did it, but won't help you cause hes up north of Auckland, it was a special product though that a lot of mechanics were using, just can't remember the damn name of it. I would find out for ya but I'm on the other side of the world so its a little tricky, if you wanted to find out the name of the product, the mechanic was Bradley Automotive in Silverdale.

Cheers Kent

[albundy]

When I had the V6 terrano, I used that nulon complete fuel system cleaner twice a year. Ran the motor on 96 octane and never had a problem. Always heaps of power, and more economical on 96 then 91.
Al

[Shot]

Hi there.
I have the same V6 and have done some work on it after I bought it.
Was looking for _good_ injector cleaning places in NZ (i.e. owning a proper machine to do that, ultrasound blah blah) - found only one place in Pukekohe, they do racing cars. I doubt if diesel shops can service petrol injectors properly, personally.
So I took them out, couriered to them and got them back in a few days. Cost around $160 for all 6. That included ultrasound cleaning, leak testing, flow testing and replacing all rubber seals - and they were brittle!
Anyway - the engine has only done 150K so there was no big difference in performance, although idle has somewhat improved. I am way happier though knowing the state of injectors now.
These engines are gutless from factory, however you can do something.
* Get a normal exhaust system - headers or complete replacement. Could be $800 or more....
* Drill out the bottom of the airbox, also remove the "cold air" crap in front of the airbox. Nicer throttle response
* Replace auto with manual gearbox - I am personally looking for a V6 Hilux with manual to get it from. Bolt-on exercise and not too difficult.
* Replace all silencers on intake with a straight pipe.
* Expensive engine mods.

Oh, and definitely get a new oxygen sensor - my truck has gained ~20% mileage just after replacing it. And don't get it from NZ - salesmen in this country are greedy bastards - wanted over $300 for it. Screw them I thought and got it from the States for $150.