Different start problem scenario: I started my 82 SD (617 turbo) this a.m. for its annual trip to NC vehicle inspection station Temps were low teens overnight and probably mid 20s when I started it. Battery minder (usually on) was disconnected before start attempt. Engine had not run in weeks and probably only drove 50 miles in last year. I haven't been driving the car because I need to replace the flex disks (procrastinate, procrastinate). The old engine started instantly but.. the whole car shook hard at idle although it smoothed out with just the slightest acceleration. After driving about 10 miles the engine idle was almost normal (just slight diesel shake). Why did it shake so bad at cold idle? Any theories? Too cold? Hard engine mounts? Could the engine dampers be frozen? Maybe a wonky injector that wouldn't seal, spray, or meter right at idle? The shake was more violent than my earlier experience with bad glow plug(s). Any thoughts?
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