(06-28-2011, 10:59 PM)randomdude sandpaper?

is it really SUPER important to balance them if i just rebuild them and install the new nozzles?

i figured it was alda LOLOL

(07-01-2011, 04:22 PM)winmutt Where is Lance when you need him. Selling an ultimate performance kit but ignoring the fact that the injectors need to be balanced. Really?

(07-01-2011, 04:22 PM)winmutt Where is Lance when you need him. Selling an ultimate performance kit but ignoring the fact that the injectors need to be balanced. Really? Almost certainly the ALDA.

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing, tho I'm sure I can find out... They work better than what I took out of the car I imagine. On the hunt recently for Bosios I spoke with the fella who rebuilds the injectors over at www.KermaTDI.com Very knowledgeable. He said that because our nozzles are an old design alot of companies dont make them in house anymore. We all know about India made Bosch injectors...he said the same goes for Monarks. Often they're are NOT made in Germany and are often a "$7 nozzle" the Bosios are all "made in house in Italy" and he affirmed they're more performance orientated. He also stated that he has the Bosio shim kit and balances the sets to within ONE BAR. Thats pretty tight He gets $20 for the nozzle and $25 to do all the work....INCLUDING...the big thing Bergsma skimped on...coating the exterior of the injector halves to prevent rust!!! not bad $ I felt, I know where my next set is coming from

(12-02-2012, 11:08 PM)Chuckler3

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing, tho I'm sure I can find out... They work better than what I took out of the car I imagine. On the hunt recently for Bosios I spoke with the fella who rebuilds the injectors over at www.KermaTDI.com Very knowledgeable. He said that because our nozzles are an old design alot of companies dont make them in house anymore. We all know about India made Bosch injectors...he said the same goes for Monarks. Often they're are NOT made in Germany and are often a "$7 nozzle" the Bosios are all "made in house in Italy" and he affirmed they're more performance orientated. He also stated that he has the Bosio shim kit and balances the sets to within ONE BAR. Thats pretty tight He gets $20 for the nozzle and $25 to do all the work....INCLUDING...the big thing Bergsma skimped on...coating the exterior of the injector halves to prevent rust!!! not bad $ I felt, I know where my next set is coming from

So the bosio injectors sold at kerma are the ones to go after if I were looking to rebuild mine? I'm not sure when mine were worked on last or if at all.

What do you mean he get's $20 to do all the work? Does that mean the nozzles that they sell on their site are ready to be installed with minimal work on my part or that he takes your current injectors and does the install?

I apologize if this is obvious, but I spent too many hours under the car today with little sleep the night prior.

(12-04-2012, 01:27 AM)Captain America I will want the best (bosios) and am willing to wait!

(12-06-2012, 01:17 PM)Greazzer So $25.00 for a set of 5 ? If that is the case, then yes he beats my price by 50%. As for .5 BAR, that would be around 7 PSI. I would say that is above and beyond what I can do. The best I did was a hair over that, and that took hours. Actually, I think that is somewhat "impossible" to reach since an injector NEVER pops exactly the same everytime and a range of +/- 10 is a killer to achieve. But, as you said, $25 for a set of 5 is a steal. So, $43 x 5 + $25 = $240.00 plus shipping is a super decent price.

(12-06-2012, 01:42 PM)Greazzer That would be my guess too.

If so, then my price totally smokes theirs and my service is up to their specs. I would put my rebuilts against theirs any day of the week. I have received my fair share of injectors from various forum members who just had theirs injectors "done by the best diesel shop in town" ... blah blah blah. They looked like crap when I got them and they performed just a little better than crap. Mine look and perform like new (if new nozzles). Period. If you got used nozzles, they still look like new and perform as best the used nozzle can.

BUT, as I said before a bunch of times, Bosios are the best nozzle IMO.

(12-06-2012, 08:42 PM)Greazzer For a set of 5 I charge $50.00 so $10 bucks each I guess. Shipping is $10.00 and that is USPS priority mail, with insurance and tracking. Shipping is the same if I do 4, 5 or 6.

Mine look new and with new nozzles, they perform like new also. I currently do not sell nozzles but that may be changing rather soon.

Mine are generally at the +/- 25 PSI from the FSM. The FSM permists 50 +/- PSI, but rarely do they leave at the FSM level. I would be interested in seeing how they get down to 7 PSI as they claim.

I dont dip mine in any specail diamond forumala. They are perfectly clean on the inside and out. They generaly last about 1 year before rust actually forms on the outside injector body and its a mild flash. However, I am not sure what happens if subjected to a crazy environment.

As for how I do it, I do not disclose my method or what I use or do. I can say that the cleaning involves ZERO acids, caustic chemicals, or mechical means. I do use an ultrasonic cleaner. The service does take a full 48 hours, however. I do not use electroylsis.

So, that is what I got to say on that.

LOL.

(12-06-2012, 08:42 PM)Greazzer For a set of 5 I charge $50.00 so $10 bucks each I guess. Shipping is $10.00 and that is USPS priority mail, with insurance and tracking. Shipping is the same if I do 4, 5 or 6.

(12-07-2012, 07:26 AM)Simpler=Better I don't trust mercedessource...their shit always seems kinda sheisty

(12-08-2012, 11:42 AM)RustyLugNut I have his pop tester and rebuild kit and have done half a dozen sets on my families' Mercedes and it has been well worth the price.

(12-08-2012, 12:08 PM)Volker407

(12-08-2012, 11:42 AM)RustyLugNut I have his pop tester and rebuild kit and have done half a dozen sets on my families' Mercedes and it has been well worth the price.

Cool, would you tell me the resolution of the manometer from the pop tester and how exact you were able to balance the sets?

Thanks

Gruß
Volker

(12-08-2012, 01:51 PM)Greazzer "he spends time creating his information and the posts on a public forum have to be sorted"

I can type almost 100% definitively that MS - Kent really creates no information. He copies info out of the FMS and Bulletins and re-pastes it. That's it. As for the forums, some threads are good and some not so good. As for his ability to create COTS, yes, that is his claim to fame, but that is about it, but you pay for it. At least on the forums, most info is free.

(12-06-2012, 08:42 PM)Greazzer For a set of 5 I charge $50.00 so $10 bucks each I guess. Shipping is $10.00 and that is USPS priority mail, with insurance and tracking. Shipping is the same if I do 4, 5 or 6.

Mine look new and with new nozzles, they perform like new also. I currently do not sell nozzles but that may be changing rather soon.

Mine are generally at the +/- 25 PSI from the FSM. The FSM permists 50 +/- PSI, but rarely do they leave at the FSM level. I would be interested in seeing how they get down to 7 PSI as they claim.

I dont dip mine in any specail diamond forumala. They are perfectly clean on the inside and out. They generaly last about 1 year before rust actually forms on the outside injector body and its a mild flash. However, I am not sure what happens if subjected to a crazy environment.

As for how I do it, I do not disclose my method or what I use or do. I can say that the cleaning involves ZERO acids, caustic chemicals, or mechical means. I do use an ultrasonic cleaner. The service does take a full 48 hours, however. I do not use electroylsis.

So, that is what I got to say on that.

LOL.

(12-07-2012, 05:11 AM)Volker407 What I want to say on the technical side:

lapping
If Kerma laps the needle to the nozzlebody he basically makes the gap between those 2 bigger than the factory thought it has to be. Is that good?

Another possibility would be that he manufactures oversize needles himself which he laps in the nozzlebody. For the given price those needles would have to come from china.

Diamond coating
I don´t know where or how he coats the nozzle, but concerning the pressure, flow and temperature at the nozzle/needle I don´t think that will last very long. I even think the ultrahard micro-diamond particles will ream out the nozzle geometry faster than usual when they start coming apart.

And for the balancing
Balancing is possible within 1,0bar, but even if he has the 0,01mm stepped shims I have I don´t believe every set is within 1,0bar. But the only people I know who could check that with a sufficient pop tester is Greazzer an myself. Nevertheless if someone claims that, his setting will still be very good anyway.

Gruß
Volker

---

I have read Kermas FAQ now
The nozzles are not diamond coated, they are carbon coated which is a totally different process. Also used in modern Common-Rail pumps.

But he also writes the nozzles drift much more than usual in the first 1000miles and have to be reset after that mileage.

Gruß
Volker

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing...

(12-09-2012, 04:08 AM)Volker407

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing...

In post #10 you said "he laps them all" but maybe I got that wrong.

Gruß
Volker

(12-09-2012, 04:08 AM)Volker407

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing...

In post #10 you said "he laps them all" but maybe I got that wrong.

Gruß
Volker

(12-09-2012, 10:02 AM)Greazzer I'm curious about which shims you use

They range in size from .05mm up to 1.9mm. The largest I ever used was 1.85. I have no idea who is the original manufacturer.

within 25psi of each other or from spec.

The Turbo is 135 BAR and NON-Turbo is 115. I use a nominal 1,950 and 1,650 respectively. So, they will pop within a range of 1925 and 1975 for the Turbo and 1,625 to 1675 for the non turbo. That's the goal, but add 25 psi and you're still within FSM spec. Keep in minde that injectors never pop the same exact time. If you do a quick pop in succession, you will get numbes all over the place. The key is getting them within this range. Your can narrow the range below the 25PSI +/- but it takes so much time and why bother? It adds nothing to the performance that is really noticable.

what is the pop pressure spec anyway?
See above

As far as coating them,

They leave me with a light coat of diesel. I have them for about a year in my car before they develop a slight flash, but I yank mine every 6 months to test out since I burn grease, so I really never see rust if I stay on schedule. I suggest pulling them once a year for a good cleaning and re-adjustment anyways at the time you do the valves.

(12-09-2012, 12:38 PM)OM616

(12-09-2012, 04:08 AM)Volker407

(12-02-2012, 10:58 PM)SpecialDelivery When I called Monark back when, they directed me back to Kent Bergsma as their "North American distributor" I have injectors rebuilt by Kent. Kaia confirmed he laps them all. I didnt find out about the balancing...

In post #10 you said "he laps them all" but maybe I got that wrong.

Gruß
Volker

Is he lapping the needle and seat? Under the microscope the surface finish is very ruff, and I was shocked to see that after 200,000 miles on a 1978 era Bosch needle that it was unchanged! I expected to see it polished from beating against the seat.

I have read some where that it has been found that a ruff surface helps atomize the fuel, but I may have miss understood what they meant by ruff.

I have thought about lapping the seat, but after seeing it and the atomization idea, I am now thinking that as long as it does not leak, to leave it alone. Sometimes the closer you get to perfect, the worse things work, lol.