Posted by buickanddeere on January 11, 2013 at 08:57:17 from (184.151.61.154):
In Reply to: 720 diesel posted by Deerepower53 on January 10, 2013 at 17:25:52:
Here is a link to some pump data showing body size, element stroke, element dia and delivery volume. Taking a wild guess the Deeres may have used a C sized body with a 15mm stroke and elements varying from 10mm to 16mm diameter. The primary reason JD went to 13mm was not to supply enough total volume. 10mm has lots of capacity. The 13mm was used to finish injecting the fuel with the piston is closer to TDC than the 10mm can. A 16mm element will supply 2.56 times more fuel than a 10mm. Enough to nearly drown a supercharged 830. Do you understand that after a point ,adding more fuel does not make extra power . It just makes more smoke and washes the lube off the cylinder walls. Causes wet stacking and oil spots, drips and smears all over everything. Work on the airflow before going past 13mm and 6x12 tips.
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Today's Featured Article - Restoration Story: 1964 JD 2010 Dsl - Part 2 - by Jim Nielsen. Despite having to disassemble the majority of my John Deere 2010's diesel engine, I was still hopeful I could leave the engine-complete with crankshaft and camshaft-in the tractor. This would make the whole engine rebuild job much easier-and much less expensive! I soon found however, that the #4 conrod bearing had disintegrated, taking with it chunks of the crankshaft journal. As a resul
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