1985 300 SD, started for a few seconds and then... - Page 2 - PeachParts Mercedes-Benz Forum

pawoSD · #16 03-02-2009, 10:08 PM

When the engines are older the pedal to the floor thing doesn't work as well.

Glow for 20-30 seconds....crank with no pedal....when its firing, give it some juice to 1000rpm....you're set.

Diesel911 · #17 03-03-2009, 12:04 AM

Quote:

Originally Posted by compu_85

On an 85 it will continue glowing for 30 sec after the indicator lamp goes out.

-Jason

This means he can keep Glowing longer and increase his chances of keeping the engine going after he starts; if his battey is up to it.

triacon · #18 03-04-2009, 10:03 PM

I needed a new battery. Found out the next day. Drove the car to work, had to get a jump start at the end of the day. Brought the car to an auto store where they checked the battery. So I will keep a volt meter on hand for the next week or so to monitor the new battery...

Brian Carlton · #19 03-04-2009, 10:16 PM

Quote:

Originally Posted by mplafleur

I find it very important to floor the throttle when starting a very cold engine.

I believe the importance is misplaced.

Here's why:

On the few occasions with the W-123 where I had one or two failed glow plugs, I was at the very brink of starting capability. I was also out in Cincinnati and Pittsburgh with no easy way of working on the vehicle.

The only way to get it started was to crank it with no extra pedal. The moment a bit more fuel was added, the potential for a start was immediately killed by the cold fuel.

I would crank it with no pedal and just wait until it crawled up to an idle.............never let go of the key...........even when you think it's running.

My only thought for the full pedal routine is the fact that there will be a pronounced point where the engine will definitely run and the driver can let go of the key. Without this behavior, it's nearly impossible to determine when the engine will actually run by itself without the starter engaged. Most people will fail at the start attempt.

Since you only get one chance, it's got to be right.

What possible good can huge amounts of liquid fuel do inside a combustion chamber that's desperate for any heat that it can get?

kerry · #20 03-04-2009, 10:21 PM

Quote:

Originally Posted by Brian Carlton

I believe the importance is misplaced.

Here's why:

On the few occasions with the W-123 where I had one or two failed glow plugs, I was at the very brink of starting capability. I was also out in Cincinnati and Pittsburgh with no easy way of working on the vehicle.

The only way to get it started was to crank it with no extra pedal. The moment a bit more fuel was added, the potential for a start was immediately killed by the cold fuel.

I would crank it with no pedal and just wait until it crawled up to an idle.............never let go of the key...........even when you think it's running.

My only thought for the full pedal routine is the fact that there will be a pronounced point where the engine will definitely run and the driver can let go of the key. Without this behavior, it's nearly impossible to determine when the engine will actually run by itself without the starter engaged. Most people will fail at the start attempt.

Since you only get one chance, it's got to be right.

What possible good can huge amounts of liquid fuel do inside a combustion chamber that's desperate for any heat that it can get?

x2. Especially on the 'you only get one chance'.