OEM injector questions

G

GRWeldon

5th Gear Poster
Joined
Oct 5, 2023
Messages
438
Location
Alabama
Country flag
The OEM fuel injectors have what appears to be a "cap" on the injecting end. When I was removing the intake side O-rings from mine, this cap came off. It didn't appear to break but I couldn't get them back on after the O-ring was off.

What is this "cap" and is it important? Can I use the injectors without it? I'm not where the engine is currently or I would post pictures. I will post some if needed.

I was just going to replace them until I looked up the cost. The cheapest I can find are just at $25 ea. Last time I bought a set (ages ago) the whole set was just over $60!

Thanks y'all. I appreciate your replies.
 
I thought I did a write-up on how you put those caps on....hmmmm

Note: if the cap is chipped or damaged, get a new one if you can. They are cheap on Amazon.

By the way, you may want to get the repair kit with the seals, pintle caps and filters. Yes, there is a filter inside the end of the injector.
 
White Lincoln said:
I thought I did a write-up on how you put those caps on....hmmmm

Note: if the cap is chipped or damaged, get a new one if you can. They are cheap on Amazon.

By the way, you may want to get the repair kit with the seals, pintle caps and filters. Yes, there is a filter inside the end of the injector.
Click to expand...
Had no idea there was a filter. I have new old stock O-rings. I have a spare used injector set. I'll check on a repair kit, thank you!

I never checked for a write-up...
 
I would just get a Bosch EV6 injector rebuild kit which includes new O-rings, pintle caps and filters. The old "fat" injectors are the EV1 style, if you ever come across those. They are interchangeable, but the atomization is better on the EV6.
 
I switched the jeep YJ to the EV6 for that reason, still need to get that on the road. :bangwall:

I thought there a write up on how to clean these also. At least a recent discussion.

I second rebuild kit & raise you some carb cleaner.
 

Simple test of the return fuel line

In my efforts to make this car run better (without an engine swap) I came across some tests to see why the O2's are putting out code 137 and 173, running rich. One of the tests was to see if the return fuel line is backing up back into the injectors. What is an easy way to check? I was...
forum.birdcats.com forum.birdcats.com
Most of the injector discussion is on the second page.
 
You must log in or register to reply here.

Similar threads

Back
Top