Injector cleaning/bench testing services

Have any of you sent your injectors in to be tested/cleaned?

I’m not having any issues, just doing this as a little “PM”, and just to make sure I’m getting all of the flow these things provide.

I’m in NorCal, so local shops would be a bonus.

Thank you,
Steve

AFAIK s65 injectors are still relatively inexpensive. I’d just buy new ones.

Agreed. I personally know a guy that had injectors cleaned and serviced that subsequently ended up bore scoring cyl 1 when they failed open. Now he gets to build a new short block.

it'll cost just as much to buy new injectors, on top of that if you did that with your current injectors you'll need to replace the o-rings also.

I hear what you’re saying. I’m starting do do mostly track days now, and wanted to make sure everything was in spec. I’m not having any issues which is why I didn’t want to replace them.
BTW, FCP has the Bosch set for $460, whereas the BMW part is $300 each.

I did scoure the section on injector failures, but came away with nothing more than if the injector sticks open, you can flood/hydrolock/ruin the block.

Are injectors a wear item that should be swapped at a mileage interval? I saw something posted that 80-100k is the “when you should” replace them, but there is no empirical data supporting this (at least from what I found).

sperkins wrote

I hear what you’re saying. I’m starting do do mostly track days now, and wanted to make sure everything was in spec. I’m not having any issues which is why I didn’t want to replace them.
BTW, FCP has the Bosch set for $460, whereas the BMW part is $300 each.

I did scoure the section on injector failures, but came away with nothing more than if the injector sticks open, you can flood/hydrolock/ruin the block.

Are injectors a wear item that should be swapped at a mileage interval? I saw something posted that 80-100k is the “when you should” replace them, but there is no empirical data supporting this (at least from what I found).

The answer is “it’s complicated.” The concern is debris wedging one open. Whether that’s a function of dirt buildup over time, or the non-serviceable fuel filter starting to degrade at some point and sending FOD down that fuel line is still open for debate as far as I know. It’s why people sell in line fuel filters (though I think just get a new pump at that point, and have the bonus of a new filter too).

I’ll say this — my motor was at 145k when I bought it, and I put in new injectors just to feel better about it.

sperkins wrote

I hear what you’re saying. I’m starting do do mostly track days now, and wanted to make sure everything was in spec. I’m not having any issues which is why I didn’t want to replace them.
BTW, FCP has the Bosch set for $460, whereas the BMW part is $300 each.

I did scoure the section on injector failures, but came away with nothing more than if the injector sticks open, you can flood/hydrolock/ruin the block.

Are injectors a wear item that should be swapped at a mileage interval? I saw something posted that 80-100k is the “when you should” replace them, but there is no empirical data supporting this (at least from what I found).

we spend $400 alone just doing sparks and oil, might as well just do the fuel injectors and not worry about it for a while.

mechanical parts wear and tear no matter how you look at it miles, hours, etc..

...i guess im adding these to the "list"

Cleaned and tested original injectors have failed.

sperkins wrote

...i guess im adding these to the "list"

"Cheap" insurance when compared to an expensive engine. FCP Euro FTW.

Message received.
Thanks for the input Boys!
I appreciate everyone’s experience.