That machine is called a pressure gauge. Not very expensive at
all. The part that costs is the pump that produces the pressure.
Some people make their own from bottle jacks.
Larry Turner via Mercedes wrote:
2000psi + Wow! A lot of pressure to work with. I've seen some machines
on the market that read the pressure - are they hard to come by?
Thanks!
Larry
On 02/06/2017 8:27 PM, MG via Mercedes wrote:
According to 07.1-137 Disassembly, cleaning, assembly and adjustment
of injection nozzles. The pressure is to be 135-143 bar for new and
120 for used. No more then 5 bar between the highest and lowest but
closer is better. That's 1958 to 2074psi more or less. I think the
ones I did a few years ago for my 6.5 chevy engine I got to 5 psi
between the highest and lowest. It took a bit.
Manfred
Dan--- via Mercedes wrote:
I believe opening pressures should be around 1800 psi/115 bar, and
the set should be within 50 psi or about 3.5 bar of each other.
Those are ballpark numbers from my memory, a dangerous thing at times.
-D
Sent from my iPad
On Feb 6, 2017, at 3:13 PM, Curt Raymond via Mercedes
<mercedes@okiebenz.com> wrote:
I thought it was .5 bar. 5 bar is like 72+ psi, that seems like a lot.
Although, how much is injection pressure?
-Curt
From: Dan--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com> Cc:
"d...@penoff.com" <d...@penoff.com>
Sent: Monday, February 6, 2017 3:01 PM
Subject: Re: [MBZ] Servicing Injectors
There is a guy on German eBay that sells Monark nozzles at very
competitive prices, and ships promptly. I just bought a set for the
300D and they were $137.00 shipped. I got them in about a week's
time from the Fatherland.
Bosch nozzles are garbage according to a couple of fuel injection
people I talked to.
You can disassemble your injectors and clean or replace the nozzles,
but they really need to be recalibrated if you do, especially if you
replace the nozzles. Insist on having the set matched to 5.0 bar or
less, as the farther apart they are as far as opening pressures will
have a significant effect on the smoothness of the idle and
efficiency of the engine.
If you've never done this before, don't have a pop tester and an
almost surgically clean work area you're heading for a very
unpleasant result.
-D
Sent from my iPad
On Feb 6, 2017, at 2:43 PM, Curt Raymond via Mercedes
<mercedes@okiebenz.com> wrote:
You can but I don't think you'll be happy with the results. The
injectors have to be calibrated so they open at the right pressure.
From what I understand getting them calibrated as close as possible
to each other will result in a smoother and quieter engine.
Max and I have both used a fellow in NC for the job. It wasn't
terribly expensive, Max has had his done more recently and might
know the number.
RE: the injector nozzles, most people regard Bosch as garbage,
Mark, the guy in NC says if you need 4 injectors done order 6 Bosch
nozzles so hopefully you get 4 good ones. Monark are the ones worth
working with, they're a little more expensive but this is a case
where spending the money is worth it.
-Curt
From: Larry Turner via Mercedes <mercedes@okiebenz.com>
To: "mercedes@okiebenz.com" <mercedes@okiebenz.com> Cc: Larry
Turner <l02tur...@comcast.net>
Sent: Monday, February 6, 2017 2:31 PM
Subject: [MBZ] Servicing Injectors
Please excuse my ignora
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