These links talk about pressures, I had a quick galnce and although not specific for your motor they all seem to be about 1 bar cold control pressure and 3-5 bar warm control pressure. I does mention that performance gains can be made by altering the warm control pressure but like any HP gain you pay for it at the pump.


----- Original Message ----- From: "OK Don" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[EMAIL PROTECTED]>
Sent: Monday, January 09, 2006 12:00 PM
Subject: Re: [MBZ] 5.0 euro, replaced the fuel filter,warp drive back up sort of

I have a gauge set - perhaps we can work something out. I bought it
from JC Whitney - not too expensive.

On 1/8/06, Mitch Haley <[EMAIL PROTECTED]> wrote:
David Brodbeck wrote:
> Yes! Get a gauge. You really can't troubleshoot K-Jet without one. > If
> I remember right, to do all the tests you need a set that includes a
> gauge, a valve, and fittings that replace banjo bolts and give you
> places to connect the gauge hoses.

I made two of them 20 years ago when I worked for a Saab Indy. My boss
let me take the fittings from some parts cars, and I bought the gauges,
valves and lines. Cost about $25 total, getting the Bosch parts for free
and the rest at wholesale. I think the Bosch service tool was about $80
back then, slightly cheaper than an injector pop tester. When my old boss
died, I should have gone to his estate sale and bought the other one. I
can't guarantee the Saab fittings on mine are right for the 500, but it
seems feasible.

BTW, it is my opinion that the warm-up regulator is the most troublesome
part on K-jet systems I've dealt with. (on Saabs and Rabbits)

Norman, OK
'90 300D 243K, '87 300SDL 290K,  '81 240D 173K,  '78 450SLC 67K, '97
Ply Grand Voyager 78K

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