injector refurbisher recomendation needed UPDATE

[no2lurch]

i want to get my 6 325i ninjectors refurbed, but i dont know where to go.

anyone got any recomendations for postal services and costs involved?

[no2lurch]

Been quoted 100 quid through the post with a company in Ashford, but is this a good price?

[Morat]

What is actually involved? I've been tempted to get hold of an ultrasound cleaning thingy and do my own

[E30BeemerLad]

£100 isn't a bad figure, it is normally about £20 an injector.

You can buy an ultrasonic bath off ebay or similar, but you won't know if the flow rate is OK unless you can put them on a test rig afterwards

[shedrool83]

I've been thinking of getting mines cleaned too.
I've also been thinking about getting these as it will work out cheaper than getting mines cleaned also the car wont be off the road while my injectors are getting cleaned.

Has anybody used them or does anybody know if they will work?
Sorry the link is huge and i dont know how to do the clicky thing

Clicky

[no2lurch]

damn, they are a good price.

[gepetto]

id be up for these aswell jake if theyre decent
like!!

[shedrool83]

I was hoping someone on here had tried them before i commit to buying.
Might go for it if someone can confirm they are the correct ones.

[no2lurch]

i just massaged them. might see if i can geta group buy too maybe

[gepetto]

nice 1

[shedrool83]

i just massaged them. might see if i can geta group buy too maybe

Sounds like a plan.
Let me know what the response is .

[town325i]

a mate of mine is going to do mine for me for free at work when his gaffers aint looking

[no2lurch]

a mate of mine is going to do mine for me for free at work when his gaffers aint looking

can he do mine?

[ShepsEvo3]

I used to use Lucas Service UK.... but since they went tits up last month, they won't be doing anymore... shame as they were absolutely top notch at referbing injectors and getting the flows matched exactly.

So I am watching this topic with wide open eyes to see all your recomendations as its something I get done pretty often.

[town325i]

its taken me months to convince him to mine and he still aint done them and the way its going jcb might get rid of him before i get mine done. how much are the kits on ebay

[no2lurch]

thing with doing it myself is i cant check the flow rate and pattern...

[E30BeemerLad]

the people I can personally vouch for with injector cleaning are here

http://www.teessideautotech.co.uk/petrolinjection.htm

[Morat]

Those injectors look pretty good to me (a non expert). Would they require a remap?

[gooner1]

A word of caution here, have recently been told that cleaning injectors that do not really require cleaning,
can damage them.

[zaust]

If they are working fine then just run an aditive to your tank, I have lost 5 injectors due to sonic cleaning.

[shedrool83]

If they are working fine then just run an aditive to your tank, I have lost 5 injectors due to sonic cleaning.

Might try this first then.

Taken from another site.


Is your car running sluggishly? Are you noticing a slight stumble as you drive? Chances are, your fuel injectors need to be cleaned. In this tech article, I will go over the easy steps in removing the fuel injectors and cleaning them out. This article applies to my E30 325is 6 cylinder, however the principles behind this apply to nearly every car in general. Usually, most people just run a can of fuel injector cleaner in a full tank of gas. I would also recommend this, but in cases of cars that have been poorly maintained or have been sitting for a while, the only way to get those injectors truly clean is to pull them out.
That said, let’s begin. The first step is to disconnect the battery, as we will be working around fuel injection components and raw fuel. You don’t want a spike going through the system. This could fry your fuel injection computer. Also, you don’t want t a random spark igniting raw fuel. This is VERY bad. You will have to sit back and watch as your car goes up in flames. Disconnect the battery and be safe.
Run the car until you have less than a quarter tank of fuel in there. This will reduce the overall amount of fuel pressure in the system and help prevent raw fuel from gushing out when you remove the injectors. Now, start out by removing the hose clamp holding the fuel line to the fuel pressure regulator and plug the fuel line using a bolt. Also disconnect the vacuum hose at the top of the regulator. This picture shows the fuel pressure regulator. Now look at the rear of the engine on the passenger side right above the valve cover. You will see the connection for the rear fuel line. Loosen the hose clamp that holds it to the fuel rail and remove the fuel line. Plug the end of the fuel line with a bolt. Be prepared for some raw fuel to spill out of the lines. Just have a rag nearby to clean the fuel up.
Now, Remove the four 10mm bolts that hold the bracket between the valve cover and the intake manifold. Now take the bracket off and set it aside. We will need to remove this bracket in order to remove the fuel rail. Now loosen the hose clamp holding the breather hose to the valve cover and pull the breather hose off and move it out of the way.
We now must remove the six electrical connectors for the fuel injectors. Simply push the metal bar in and pull up on the connectors to remove them. Now, locate the four 10mm bolts that hold the fuel rail in place. This picture shows the location near the front of the engine. This picture shows the bolts near the rear.
Now, pull up on the fuel rail evenly from each end. You may have to use a little force to get the injectors out of the intake manifold. Once out, maneuver the whole fuel rail from out between the cylinder head and the intake manifold. Be sure to have a coffee can or some other sort of tray around to catch the extra fuel inside the fuel rail. Now take the whole fuel rail over to a workbench or other suitable work area.
We will now need to separate the fuel injectors from the fuel rail. Use a small flathead screwdriver to remove the retaining clips holding the injectors on and store them in a safe place. Now pull the injectors out of the fuel rails. You may have to use a little force to get them out. Keep in mind that you will most likely have a little bit of gas spill out when you remove them. Once out, remove the old seals on the top and bottom of the injectors and throw them away. You never want to re-use injector seals. If you do, there is a chance they may crack. This could cause an air leak or worse, cause raw fuel to leak out.
With the injectors out, you might see a build-up of crud on the tips. This is usually a mixture of carbon deposits, fuel additives and gas. Use a rag to wipe off as much as you can. Now, get a can of brake cleaner and spray the outside of the injectors and the tips. Use a soft brush to remove any grime on the tips. Now spray a bit of brake cleaner down the inside of each injector and blow them out with some compressed air. You may be surprised at what comes out of there. Each fuel injector has a small filter that collects any debris or crud in the fuel system. Spraying the brake cleaner in there will dissolve any deposits in there.
A good way to clean the inside is to spray cleaner in there, then hit it with compressed air. Keep doing this until the brake cleaner coming out is clear. This is an indication that they are clean. CAUTION: be sure to use goggles when you do this, as the compressed air will spray the cleaner everywhere. You don’t want this stuff to get into your eyes.
Once you have all the injectors clean, get some new fuel injector seals and place them on each end of each injector (Pelican Parts carries these seals for $0.61 each. You will need 12 of them) Now to re-install them, put a little engine oil on the outside of the seals and press them back into the fuel rail. The engine oil will help you push them into the fuel rail as well as help seal them. Now re-install the retaining clips the secure the injectors into the fuel rail.
Now, go back to the car and plug each injector port with a small piece of paper towel. Now take some brake cleaner and a small brush and clean the area around the injector ports. This will clean the area and prevent any loose dirt or debris from entering the injector ports. Take the paper towels out and look inside each port to make sure there is no dirt in there. If there is, use a small vacuum to suck it out.
Coat each lower injector seal with a small bit of engine oil and position the fuel rail/ fuel injectors back in place in the intake manifold. Now, using equal pressure on both ends of the fuel rail, push down until each injector seats in the manifold. Now re-install the four 10mm bolts that hold the fuel rail in place.
Once installed, re-attach the fuel line on the rear of the fuel rail and tighten the hose clamp that holds it in place. Now move to the front of the rail and re-attach the fuel line to the fuel pressure regulator and tighten the hose clamp that holds it in place. Also re-connect the vacuum hose at the top of the regulator. Now push the electrical connectors for the fuel injectors back on. Just push them down until they click.
Now take the valve cover breather hose and push it back onto it’s fitting on the valve cover and tighten the hose clamp that holds it on. Next, re-attach the bracket that holds the intake manifold to the valve cover and install the four 10mm bolts that hold it in place. Now would be a good time to change out the fuel filter on the car if you have not already done so.
Now re-connect the battery and fill the tank up. When you restart the car, it may take a few times to get it to run. This is normal. Keep in mind that the fuel system is under constant pressure and we just opened it up, introducing air into the fuel lines. It will take a little time for the fuel pump to deliver fuel to the injectors and pump all the air out of the system.
Well, there you have it - it's really not too difficult at all.

Whats people thoughts on this?

[Morat]

I think that's a wall of text :O

[corkie]

didnt read it all,but dont think i will be atempting that being forgetfull and mecanicly clueless not a good combo where fuel is concernd...

[hoshy]

If they are working fine then just run an aditive to your tank, I have lost 5 injectors due to sonic cleaning.

Might try this first then.

Taken from another site.
<snip>
Whats people thoughts on this?

I think you should put it on the wiki. Give it some nice formatting. Read it and make sure it makes sense. Then post a link up so the super-techs can debate its merit.

[DavieP]

I think I read this on Penguin while trying to decide whether I ought to do something about my chattering injectors. I decided I didn't and that if I did, it would probably have no major effect at best and a catastrophic effect at worst. I'll stick to the cans of additive before a long run

[no2lurch]

i got a message back form the guy in the US. i'll post in the group buy section... look out for it.