What's the best way to get injectors cleaned? I've googled using an ultrasonic jewelry cleaner but the wife doesn't have one (though it is her birthday next week but I reckon she wouldn't be too happy ). Is there a service that does this effectively? Any input would be welcome.

here you go mate
http://www.aldi.com.au/au/html/offers/2827_25311.htm 

Wow, great timing, clean injectors AND a happy wife - just in time for her birthday Seriously though what fluid should I use to clean the injectors?

you should really flow them before cleaning and take readings

then ultrasonic clean and re flow to see difference

why do they need cleaning r u down on performance ???

The injector buckets can fill up with crap too Barry, they're easily replaced when the injectors are out.

Now this is a steep learning curve for me , are the 'buckets' the ceramic nozzles on the injectors?

Nope, they're inside the injector where the fuel line goes on.

Right, as the injectors look like they are the original ones the fuel lines are fitted straight to the injector itself so it looks like I'll have to cut them off to get to the inlet and then , hopefully, the bucket, Cheers Graham

Set of 4 would cost $200 professionally which includes flow and pattern record of before and after cleaning.

Those ultrasonics can be bought cheap from fleabay. You also need to supply 12v to the injector after it's first clean so that the injector seat gets clean. This part helps create a nice fan for the spray pattern.

I used a ultrasonic cleaner to clean a set of IDF's. I spent a bit of time researching different solutions on samba & STF some guys had secret solution but I used a dishwasher tablet and wasnt all that impressed. I have seen better results. My point is buying your own cleaner is no silver bullet and will take some experimentation if you have the time and $.
cheers

Being in the racing sport and using E85 which can block injectors within two- three weeks, it was time to invest in a Professional (AS-NU) EFI ultrasonic pulses cleaner / flow bench which can clean and flow 8 injectors at a time to give matched results.

This is the same brand of machine that I used while i was working at a performance rotary work shop over 7years ago.



At the moment I am servicing injectors with before and after flow reports, sprey patterns, and changing all o'rings and baskets (filters)
For only $25 each
Pm me



Aaron

OK it appears that the baskets/buckets were filled with crap except one where only the brass collar was left- no filter!! I've used an ultrasonic jewellery cleaner whilst running 12v through each injector and have also run an injector cleaning fluid backwards through each one under pressure, a nice spray pattern is the result now all I need is four new filter baskets. I could buy a packet of a hundred but that may be a bit of overkill especially as these have only been cleaned the once in over 30 years! Is it possible just to buy small quantities?

oring & baskets etc cost about $8for 4 ask 20bkombi

Looks like your injectors weren't flowed corectly hey!!!!

I use 4 different pulse widths and 4 different rpm ranges to see the difference in flow at certain duty cycles.
Most of the time there different. Even from new I had bad flow rates, and second hand ones last night didn't even open!! But after 1 1/2 hours of cleaning and flowing they came out awesome!!!
The only true way to get an accurate comparison is by fluid weight.

New injectors are way to expensive to keep replacing and don't always flow the same.

no the problem I kept having is before getting them reconditioned my car would start and run fine. the injectors didn't leak as all mine were under 100km of life so there were virtually new in terms of design 2 injectors go, after reconditioning my car was nearly imposible to start if it sat warm for 30 or so. pulled the rail and primed it and sure enough they leaked like a sieve. Got them to do it again and with another set of good working ones I had. same problem, they started leaking.

so there were way worse off then if I hadn't got them reconditioned.


So now I run 2nd ones I pulled from an engine with 300k on them and its perfect, even their spray patterns check out good.

the irony !

I am just going to get new ones for my current project as I need larger ones. probably go for flow matched LS1 (931) injectors. 26lb at 3.5 bar. design 3 EV6 body

mmm lineal flow rate

btw do you sell injectors? or can get them and flow match?