Quote:
Originally Posted by jim16671836
I have started a number of Mercedes Diesels by pushing or pulling.. It will work either way. Tom is right but I never worry to much about bleeding the air by pumping the hand pump, usually bleed the air at the top of the injectors and fill the canister fuel filter with half gasoline and half diesel or keresene. I have started Mercedes diesels that have set for 12 years using this method without changing the 12 year old fuel.. Of course a really strong battery will more than help.
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You may not want to hear this, but I believe, given the warm climate, you must stack things in your favor for a good start the first time. That means some prep work because it has sat so long:
1. If the car has been sitting a REAL long time, you may want to consider draining the tank and putting in new fuel, or just running it temporarily out of a jerry can, once the air is out of the system.
2. Air can be anywhere. Charge the battery and take the glow plugs out. Test them individually.
2b. Get a new battery ground and main starter cable. You need juice to GPs and to the starter.
3. Drain the motor oil, replace it. Turn the engine over w/o glow plugs but with new oil to get all those bearings lubed for a real fast start when the GPs have been cleaned with a brass brush and reinstalled. Check the wires between glow plugs as well.
4. Replace the small primary transparent filter. Replace the primer pump with one of the new ones and prime the bejeesus out of the system to bleed air up to and including the second filter. Crack the filter canister and make sure there's no air in it.
5. Crack the fuel line on the cylinder farthest from the pump with the GPs still out. Have an assistant crank the engine while you mwatch for bubbles and air. Do the same to the other cylinders.
6. Hit the primer pump some more.
7. Reinstall the glow plugs while the battery is re-charging on fast, about 40 amps. Be sure it is disconnected when you charge it.
8. Spray a bit of WD40 in thto the air manifold.
9. Inspect the fuel linkage and make sure the linkage return spring is in place. It falls off sometimes.
10. Have an assistant turn the idle control, make sure the cable is pulling the linkage back a little.
11. Set the linkage at max acceleration for idle. warm the glow plugs an extra 5 second, holsd the starter down for about 25-30 seconds and let it crank the engine the full time and it should start.
Good luck! This walk through has always worked for me in even cold temps unless there was something seriously wrong. Roy will tell you what we found on my 112.00 ponton-- bad cam--
but we still got it going and I got a replacement cam
