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  #61  
Old March 8th, 2015, 08:49 AM
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I think the wheel wells are a better option for creative storage solutions. If you have to put something on the door I think I'd lean toward a narrow pelican case bolted to the door frame structure.
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  #62  
Old March 8th, 2015, 09:04 AM
Azarur
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Quote:
Originally Posted by BlackField View Post
I think the wheel wells are a better option for creative storage solutions. If you have to put something on the door I think I'd lean toward a narrow pelican case bolted to the door frame structure.
Unfortunately the wheel wells are already spoken for. One has a heater for the rear area and the other some of the electronics. So we have the rear door and the two rear pillars as options...
A Pelican case-like box sounds like a cool idea.
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  #63  
Old March 8th, 2015, 09:06 AM
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Samer Hijazi
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I would look into Rotopax., especially for the 1st aid kit storage. They have an orange colored one specifically labeled for this purpose, that you can populate yourself with the 1st aid supplies, and you can pick a second color for small hand tools.

They have different mounting solutions, which allows you to remove the container if it's not needed.
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  #64  
Old March 9th, 2015, 02:22 PM
Azarur
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The body is finally being mounted back on the frame!!
Big milestone today!
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  #65  
Old March 9th, 2015, 06:25 PM
newhue
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Jason
1994 Tdi 130, 2010 Tdci 130
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Not really use of the door, but how about a basket type thing that hangs in the rear roof space. It won't be useful for tools, but light recovery gear, first aid, emergency overnight pack or hiking gear perhaps.
Thinking if you have a cargo barrier, a basket of similar materials could pivot of the cargo barrier, and drop down for access at the rear door. It utilises the top part of the hood lining which doesn't see much use, but leaves the bulk of the rear compartment available. You could even mount speakers in the front of the basket so the kids can have sound directly behind their heads.
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  #66  
Old March 17th, 2015, 11:48 AM
Azarur
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Hi all,

After much (MUCH) engineering and trial and error work, we finally adapted the Merc hydraulic mounts to the 200TDi. Many of the threads that we had access to showed using these mounts horizontally, which is exactly NOT what these are designed to do. These mounts are designed to bear load on the Z-axis and to damp vibration on the XY-plane, and therefore should be mounted as close as possible to vertical. If mounted horizontally they would be bearing load on the X or Y axis (in fact if folks want to be really strict about this, one should use cylindrical coordinates as Mercedes specifies a load on the Z-axis and dampening on the r-direction), which would cause them to fail prematurely.
So, being the freak that I am, i insisted that we figured out a way to mount them as close to vertical as possible without creating too much lever against them.
Here are the results of the two fronts and two backs.
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  #67  
Old March 17th, 2015, 01:00 PM
Azarur
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Photos here:
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  #68  
Old March 17th, 2015, 02:08 PM
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nice!

it's funny that merc would use r-theta space in the manual
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  #69  
Old March 17th, 2015, 02:36 PM
Azarur
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I thought it was priceless. We found the OEM spec for these (in German) and indeed they specify a force (in N) in the -Z direction and a % dampening in the r direction as a function of force x lever length and rotational speed. I guess these are used in more than one application by Mercedes.
The proof will be in the pudding when we actually drive around and see if we can see a meaningful reduction of vibration at idle while not losing too much power at full speed.
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  #70  
Old March 17th, 2015, 02:54 PM
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Etienne
Tdi 2500 diesel Defender 1985
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I owned a 1961 series II. That started it all. Now own a 1984 TdI 2500 diesel. A vehicle like this becomes part of the family and the budget. What effort you have put into yours is priceless. The family and you will enjoy this for years to come. You cannot put a $ sign on something like this. It is not an overkill, it just looks dam great!
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  #71  
Old April 3rd, 2015, 08:06 AM
Azarur
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Code for Arduino

A few people have asked me to upload the code for the Arduino board that is collecting data for display. Consider this V1.0.

The code collects data from 4 temperature sensors, the speedometer, tachometer and two fuel flow meters. The data is arranged in a C++ data struct that can then be sent to other Arduinos for display, or via bluetooth to your iPhone or Droid. This version sends to an Arduino UNO connected to a LCD screen for display.

Alternatively, instead of sending to a second unit you could connect an LCD to the primary board and use that for display. I would not recommend it though, unless you use an Arduino DUE, because the processor of the previous boards can't really cope with driving an LCD and capturing the interrupts associated with the speedo, tach and fuel senders.

Let me know if you have any questions.
Code:
#include <Wire.h>
//Temperature Initialization
float Temp1=72.5;
float Temp2=104.7;
float Temp3=13.21;
float Temp4=50.17;

//Speed Initialization
float Speed = 65.00;
float Rotations = 1000;

//Fuel Use Initialization
float FuelIn=100;
float FuelOut=50;

//Buffer Dimensionality (4 x Number of Variables (8 in this example)=32
//int BufferSize = 32;
char buf[32];

//Initialize Thermometer Pins
int analogPin3 = 3;
int analogPin4 = 4;
int analogPin5 = 5;
float val3 = 0;
float val4 = 0;
float val5 = 0;

//Interrupt Initialization
int pbIn1 = 0;
int pbIn2 = 1;
int pbIn3 = 4;
int pbIn4 = 5;
double time1 = 1;
double time2 = 2;
double time3=0;
double time4=0;
double timeDelta=0;

double time= 1;

float counter1 = 0;
float counter2 = 0;
float counter3 = 0;
float counter4 = 0;
float counter5 = 0;
float counter6 = 0;

int masterCounter = 0;
int integrationPeriod = 20;
int countingPeriod = 500;

volatile int state1 = LOW;      // The input state toggle
volatile int state2 = LOW;
volatile int state3 = LOW;
volatile int state4 = LOW;

struct Message {
  float T1;
  float T2;
  float T3;
  float T4;
  float S1;
  float R1;
  float F1;
  float Q1;
};

Message message1 = {Temp1,Temp2,Temp3,Temp4,Speed, Rotations, FuelIn, FuelOut};

void setup() 
{
Wire.begin();
attachInterrupt(pbIn1, stateChange1, RISING);
attachInterrupt(pbIn2, stateChange2, RISING);
attachInterrupt(pbIn3, stateChange3, RISING);
attachInterrupt(pbIn4, stateChange4, RISING);
}

void loop() 
{ 
  masterCounter++;
  time1 = millis();
  time3 = millis();
  delay(countingPeriod);
  time2 = millis();
  time = (time2-time1)/10;
  Speed = counter1*1000/time;
  Rotations = counter2*1000/time;
  FuelIn = counter3*100/time-counter4*0.1*100/time;


if (masterCounter == integrationPeriod){
    time4 = millis()+10;
    timeDelta = (time4-time3);
//    FuelIn = counter3*100000/timeDelta/integrationPeriod;
    FuelOut = counter5*1000/integrationPeriod/timeDelta-counter6*0.1*1000/integrationPeriod/timeDelta;
    masterCounter = 0;
    counter5=0;
    counter6=0;
    time4=0;
    time3=0;
}
  
  
val3 = analogRead(analogPin3);
val4 = analogRead(analogPin4);
val5 = analogRead(analogPin5);
Temp1 = val3/10;
Temp2 = val4/10;
Temp3 = val5/10;
Temp4 = val5/20;
message1 = {Temp1,Temp2,Temp3,Temp4,Speed,Rotations,FuelIn,FuelOut};

  memcpy(buf,(byte*)&message1,sizeof message1);


Wire.beginTransmission(4); // transmit to device #4
for (int i=0 ; i<32;i++) {
  Serial.println(buf[i]);
  Wire.write(buf[i]);        // sends five bytes
}
  Wire.endTransmission();    // stop transmitting

counter1 = 0;
counter2 = 0;
counter3 = 0;
counter4 = 0;

}

void stateChange1()
{
  state1 = !state1;
  counter1++;  

}

void stateChange2()
{
  state2 = !state2;
  counter2++;  

}

void stateChange3()
{
  state3 = !state3;
  counter3++;
  counter5++;  

}

void stateChange4()
{
  state4 = !state4;
  counter4++;
  counter6++;  

}
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  #72  
Old April 5th, 2015, 01:55 AM
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Thank you for posting the code. The fun begins!
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