|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
Best way to test injectors for flow?
|
|
11-11-2018, 05:22 PM | #1 |
Captain
251
Rep 634
Posts |
Best way to bench test Injectors?
I am putting my car back together after a rebuild and want to make sure I have everything working right. I want to test the injectors before putting them back in the head. I have a mix of three index 2 and three index 8 injectors so I really want to make sure these older ones are working right so I don't ruin a fresh engine. I bought the car with a bent rod so for all I know I have a bad injector that caused detonation or even leaked down and hydalocked it at one time. Checking for leak down will be easy but I am not sure how to test volume and spray pattern.
|
11-11-2018, 09:29 PM | #3 |
Captain
251
Rep 634
Posts |
Just buying several hundred dollars of injectors would be an easy fix but I don't have several hundred extra dollars laying around. So I need to test these and make sure they are functioning properly and none are low flowing.
|
Appreciate
0
|
11-12-2018, 08:30 AM | #5 |
Captain
251
Rep 634
Posts |
I do plan to replace them eventually but the only replacement options I see are about $1,200 or buying from questionable sources. So for now I need to test the ones I have to make sure I don't have a weak or partially clogged one.
|
Appreciate
0
|
11-12-2018, 02:01 PM | #7 |
Captain
251
Rep 634
Posts |
I've already ordered new seals. mine are a mixed bag of index 2 and index 8. This is the order they were in my car.
|
Appreciate
0
|
11-15-2018, 01:03 AM | #9 |
New Member
0
Rep 14
Posts |
I recently changed all my injectors to Index-12. The old injectors didn't have any issues with leaking or anything. They all are still working great. I just wanted to upgrade to prevent any future issues. They're a mix of Index-7 and Index-8. If you end up needing any, let me know if you are interested.
|
Appreciate
0
|
11-15-2018, 01:13 AM | #10 | |
Captain
251
Rep 634
Posts |
Quote:
|
|
Appreciate
0
|
11-15-2018, 08:06 AM | #11 |
Major General
4288
Rep 9,224
Posts |
#2 from left to right. Side tip is bent up, meaning is possible it was pushed in too deep into the head. I would replace it.
|
11-17-2018, 11:33 PM | #12 | |
Captain
251
Rep 634
Posts |
Quote:
|
|
Appreciate
0
|
11-18-2018, 12:11 AM | #13 |
Major General
4288
Rep 9,224
Posts |
|
Appreciate
0
|
11-22-2018, 03:09 PM | #14 |
Captain
251
Rep 634
Posts |
|
Appreciate
0
|
Bookmarks |
|
|