cleaning the fuel rail and injectors...

[KongGMC]

Okay so I'm putting the intake back on my Supra but before I reinstall the fuel rail and injectors I wanna clean them very well. The fuel rail had mud/dirt in it when I took it off and one of the injectors looks pretty dirty/clogged. I bought the injector seal kits for my injectors so I'm gonna change out those seals but is there a tutorial on cleaning them and the rail or can someone just tell me the best way? I was thinking of soaking the injectors in parts cleaner but don't know if that'll hurt them or not.

Thanks in advance!:icon_bigg

 

[jdub]

You should be able to clean the rail in a parts cleaner.
(How in the world did you get mud in it?)

The injectors need to be cleaned by a shop that has the proper equipment...it has to be done under pressure. Soaking them will not do it. I suggest you get them flow tested after cleaning to make sure they are working properly.

 

[jetjock]

You really should send them out but as long as they're not internally corroded ultrasonic cleaning followed by on-the-car-cleaning has a very good chance of making them serviceable again.

 

[IwantMKIII]

Dirt? Mud? Grime? After you clean this in a manner Jdub or JJ mentioned, you really need to look into HOW this happened, this is not normal by any means. I would suggest two thing:

Clean the fuel tank like a mad man

replace the fuel filter if you even have one?

If you're really motivated shine that baby up! It can look good!

 

[cuel]

I have been able to clean an injector without sending them out. I made an injector clip that I hook up to a battery(holds the injector open), spray them with throttle body/injector cleaner, and apply air pressure to the end that goes in the fuel rail. It has worked quite a few times, but there have been times it hasn't, as well. I spray the supply end really well before I put power to it, in case there is any dirt trapped in the little screen there.

 

[KongGMC]

Geez... I didn't realize it was this much trouble to clean one of these injectors. I'll check to see if my local machine shop is able to take care of them but if not I'm just gonna clean the rail and put them back on the way they are. I am now planning on selling the car after I get it running so although I want it to run pretty good, top notch/spick and span is not where I'm heading with this anymore. Don't get me wrong though. I wanna do this whole thing right so that #1 it will run right, and #2 for the sake of me being able to say my first REAL engine tear apart went good.

 

[castrol supra]

So what will the real # of your 1st tear down be?

 

[cuel]

Napa will clean and flow test injectors at $40 each, iirc. I should have put that in my original post, sorry.

 

[KongGMC]

So what will the real # of your 1st tear down be?

I'm not sure I understand your question. This is my first real tear down.