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Old 10-30-2014, 05:17 PM   #30
Join Date: Apr 2009
Posts: 8
Took the boat into a recommended diesel outfit in Seattle for a second opinion... They checked them over quite thoroughly. They couldn't find anything wrong... Saying that Lehman's will always smoke some, even when warm... That's just the nature of these engines. They were, after all, built to lower tolerances than modern engines. They acknowledge the engines are getting up there in years, but that alone is not the criteria they say. Apparently they have seen other, older Lehmans' with a lots of hours running just fine. In the end they basically suggested I was being too fussy and overreacting....! I think they looked around the boat and decided I was just a perfectionist! Perhaps they are right... They did suggest I use 40 wt oil based on the running temperature in the engine room, not the outside air temperature...
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