Re: starting fluid and diesel motors

Posted by buickanddeere on January 06, 2005 at 09:06:16 from (64.10.41.201):

In Reply to: Re: starting fluid and diesel motors posted by David in MD on January 06, 2005 at 07:31:57:

Ether in a heated intake manifold would be a blast,literally.
Some of those 30 & 40 series were cold weather dogs due to some piston design flaw that was corrected for the 50 series.
Still not starting at 50F points to low compression pressure, slow cranking rpms or injectors not providing a fine atomised mist.
If the original injectors are still in there, they are way past time for service. At the moment they are wasting fuel, causing increased engine wear and causing hard starting. Do them istead of a hot manifold.
Barely large enough factory starters fed with old high resistance cables/connections and tired/undersized/mismatched 6V batteries. Along with the notorious hydraulic pump drag. If the old injectors didn't ruin cold starts the electrical problems will.
I know ether seems cheap compared to injectors, a high torque starter, new 00 gauge cables with swaged or soldered connections and two new 1000CCA 12 batteries.
At least get an analogue voltmeter and measure the voltage at each battery post, not the clamps when cranking. Then measure the voltage between starter's not the solenoid's main post. To the starters cast body for voltage.
If the batteries drop below 5.0V they are getting tired. The starter motor should be seeing no less then .4V below the batteries combined voltage when cranking.If so,the wiring is substandard.
A starter motor supplied with 7.0V has 1/2 the cranking torque vs 10.0V
And get the $3.00 manual hydraulic pump destroker from Mother Deere. Best cold weather $3.00 ever spent.
You can't have an untouched 30+ year old tractor and expect 20F starts.

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