Volvo S70 1998 replacement fuel injectors

Wykis · Post by **Wykis** » 17 Dec 2015, 17:21

Hello,

I recently purchased re manufactured Fuel Injectors for my Volvo S70 1998. I paid $90 for 6 of them on eBay. I decided to buy them re manufactured instead of servicing/cleaning my old ones ($20 per injector for total of 5 would cost me $100) because it was cheaper and I also was guaranteed that new re manufactured injectors were tested and working perfectly. My old injectors were factory originals with 80k miles on them. There was nothing wrong with any of them. However I decided to do them because I was replacing PCV system along with all other things (Clean throttle, intake manifold, replace thermostat, etc.) that I could get to while my intake manifold was taken off. Anyways, when new injectors came in I noticed that nozzle end had different O-ring retainer. You can see the difference in the photos. All injectors have same codes (0280155746). Difference between total length of injector between old and new ones is barely 1.8 mm (0.0708661 in) which is less than 1/5 of a cm (1 in = 2.54 cm).I also inserted rubber fuel injector spacers in fuel rail which are called for but were not included with the old set up (they are about 2 mm thick and go between fuel rail and top of injector). Does anyone know if I can use new injectors without any adjustments or do I have to replace the o-ring retainer to match the old ones? Any advice greatly appreciated.
P.S. the metal part and plastic parts you can see on injectors don't matter (according to some website I read it on)
I also took pictures throughout the fix so if anyone is interested let me know and I'll create another post or slideshow

Post by **erikv11** » 17 Dec 2015, 17:34

What matters is that the o-ring seals well and the position of the nozzle in the chamber, i.e. that the o-ring to nozzle distance is approximately the same. Total length is of no consequence as long as the injector and rail will fit in the engine bay (and a few mm is not an issue). Should be fine.

Post by **tryingbe** » 17 Dec 2015, 18:36

Are they "re manufactured" of stock injectors or are they new injectors? There are fake injectors going around on eBay. Actual link of what you bought?

Post by **RussB** » 18 Dec 2015, 09:31

You bought junk Chinese parts. That's why they were so cheap. Can you return them?

Post by **erikv11** » 18 Dec 2015, 09:48

erikv11 wrote: ... Should be fine.

Well, in terms of fitment they should be. But in light of the more recent comments, I stand corrected ...

I have always used http://cruzinperformance.com/ for fuel injector servicing.

Post by **rspi** » 18 Dec 2015, 11:55

You can try them and see if they leak. They will leak or not. I would keep using the OEM ones that were in the car. Mine has over 300,000 on them now and I have no running issues at all, at all RPM's.

Post by **mecheng** » 18 Dec 2015, 11:59

Leave well enough alone, put your original injectors back and eat the small loss in money. Those look like cheap aftermarkets.
The original injectors will last the life of the car; worried about flow, use some seafoam. Gas alone is a detergent so unless you use very poor quality gas, you are constantly cleaning them; yes the flow might fluctuate between them but unless you are drag racing it shouldn't matter.

Post by **erikv11** » 18 Dec 2015, 13:25

Yeah, I don't think I would even try them, just asking for trouble. Even if they seem to work upon first installation, who knows how long/well they would.

Wykis · Post by **Wykis** » 21 Dec 2015, 20:44

erikv11 wrote:What matters is that the o-ring seals well and the position of the nozzle in the chamber, i.e. that the o-ring to nozzle distance is approximately the same. Total length is of no consequence as long as the injector and rail will fit in the engine bay (and a few mm is not an issue). Should be fine.

They fit perfectly fine into fuel rail and into manifold. However, I'm getting a sense that I should be smarter to just return them...Thank you for the help.

tryingbe wrote:Are they "re manufactured" of stock injectors or are they new injectors? There are fake injectors going around on eBay. Actual link of what you bought?

Although the video is informal, the quality is horrible! Wish there was a way to test for authenticity for Bosch injectors. He says bosch injectors have insignia, however none of the injectors that I pulled out had Bosch on them. Ones I got from eBay were re manufactured Volvo injectors. This is the link to ebay page

http://www.ebay.com/itm/1998-1995-VOLVO ... 48?vxp=mtr

RussB wrote:You bought junk Chinese parts. That's why they were so cheap. Can you return them?

Greedy pay twice... I hope you're wrong but I'm starting to get a feeling that you are in fact right. I should be able to return them under ebays and paypals policies.

rspi wrote:You can try them and see if they leak. They will leak or not. I would keep using the OEM ones that were in the car. Mine has over 300,000 on them now and I have no running issues at all, at all RPM's.

I may have to return the ones I got and clean old ones when I get a chance. I didn't have any running issues either, just figured while im doing all other things might as well replace injectors and improve fuel consumption and overall engine operation. How do you know your car wouldn't run better if you cleaned yours?

mecheng wrote:Leave well enough alone, put your original injectors back and eat the small loss in money. Those look like cheap aftermarkets.
The original injectors will last the life of the car; worried about flow, use some seafoam. Gas alone is a detergent so unless you use very poor quality gas, you are constantly cleaning them; yes the flow might fluctuate between them but unless you are drag racing it shouldn't matter.

No, I'm not drag racing. Maybe only on the days when i'm late for work

. I tried to compare all injectors but to me they all look more or less of the same quality (old and new) I'm starting to think that perhaps previous owner got them replaced some time and replaced them with chinese knock-offs.

erikv11 wrote:Yeah, I don't think I would even try them, just asking for trouble. Even if they seem to work upon first installation, who knows how long/well they would.

Let's say these were crappy injectors, what could be the harm done to the engine? I did measure resistance on all of them and it measured 16.6 ohms each.

Thanks for all the answers, I'll definitely want to see if they work, however after that I may listen to all of u and just return them.

Post by **erikv11** » 21 Dec 2015, 23:25

Well, think about when an injector gets clogged, then it doesn't deliver enough fuel, the cylinder burns too lean (which also means burns too hot) and it can burn a valve in short order. A burnt valve means new head or new engine. I'm just speculating, but it seems possible a crappy injector could flow less fuel than it should, and cause the same problem.

If an injector flows too high then one cylinder runs rich, fuel economy suffers, due to incomplete combustion valves in that cylinder may get sooty and sticky and ultimately burn, although that usually takes longer to happen from a rich condition.

There may be other issues, but those are possibilities I can think of.