What is a good injector for the 4d56?
- Thread starter Nulla
- Start date
Nulla
Active Member
Either one depending on the cost. Which is better?
Late model for the 4D56 in a JB500? Should make a difference what year the vehicle is I think...
stevenlee
Active Member
Yes, same as of that for water cooled 4D56.
Nulla
Active Member
I took them out to get them cleaned, the shop say they need to be replaced.
Nulla
Active Member
It is 1995.
That would be the later version of the injectors... no real preference of manufacturer; just avoid third party offbrand (chinese).
Mitsubishi- MD196607
Bosch- 9430610179
Zexel- 105148-1311
Hyundai would be fine too, but IDK the correct part number.
Last edited:
Nulla
Active Member
Ok thx, I will try to figure out how to source them.
Steven Lee said he has them in stock (above). Probably your easiest/fastest option, and the price isn't bad considering.
But make sure you get your old ones back; it's pretty rare that an injector has to be replaced and can't be cleaned/rebuilt... I'm a bit sceptical of the diagnosis.
Nulla
Active Member
Thx, I am also sceptical of the diagnosis.
floP
Member
Btw could you tell the difference between the original and the newer ones? Are they downward or even upward compatible? I run just "injectors" since they told me the old ones were toast ... I'm really interested and also a little bit afraid of damages ...
Nulla
Active Member
I am getting them back.
Nulla
Active Member
Will let you know. Thx
As I understand it, the newer version is matched for the later IP pump, which runs at a higher pressure. And if you put them on a lower pressure pump they will open less/late. IDT there is any real risk of damage; just reduced performance.
What shop is this?
Unless they are rusted or the return area on top of the injector is damaged. Those are the only reasons they would not be able to rebuild them.
I stock the nozzles for these injectors. Zexel usually has nozzles in the county, as they were used in some equipment applications. I have to have the nozzles for the 4M40 brought in from Europe or Japan, but do try to keep a set.
Unless they are rusted or the return area on top of the injector is damaged. Those are the only reasons they would not be able to rebuild them.
I stock the nozzles for these injectors. Zexel usually has nozzles in the county, as they were used in some equipment applications. I have to have the nozzles for the 4M40 brought in from Europe or Japan, but do try to keep a set.
What @Scott said. Bosch/Zexel injectors are designed to be rebuildable. If the shop doesn't want/know how to rebuild them, they're just lazy or incompetent.
Rebuilding (replacing the nozzle and pintle) is a safer option than replacing, as you keep your OEM quality injector bodies and springs which are guaranteed to work with your injection pump. Rebuilding also means recalibrating, which ensures all four injectors are working the same. That's not something guaranteed with cheap replacements.
Rebuilding (replacing the nozzle and pintle) is a safer option than replacing, as you keep your OEM quality injector bodies and springs which are guaranteed to work with your injection pump. Rebuilding also means recalibrating, which ensures all four injectors are working the same. That's not something guaranteed with cheap replacements.
Nulla
Active Member
I am getting the OEM injectors. I am getting my old injectors back from the shop. I believe my old injector are good, I will keep them for future.