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Originally Posted by kerry edwards
It was about 12 below here last week. I don't have a block heater in the 85 300td and at that temperature, after glowing 2-3 times and turning with the starter for about 20-30 seconds, it will start firing on one cylinder but not enough to release the starter. After about another 15-20 seconds more cylinders will kick in and then it will run on its own. Same thing has happened on the 77 300d at those temperatures. I've considered it normal, although precisely why cylinder X fires and cylinders Y, Z... don't is not clear to me.
No evidence of any inconsitent firing at temperatures above about 8 degrees.
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perhaps the cylinder that does kick off first ( at -20f) has higher compression relative to the rest......the colder it gets the more critical compression becomes in cold weather...above 8 degrees the compression is sufficient for the motor to kick off without broblems..
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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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