Join Date: Jul 2008
Location: duluth ,minnesota
Thanked 1 Time in 1 Post
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if the diaphragm has a hole in it , the pump should be rebuilt & the oil & filter changed. i have a yanmar2GM20F. i haven't had any problems with it yet. i have rebuilt the pump on a 4 cylinder perkins. i am a retired diesel mechanic, and i have the yanmar shop manual so if you have any questions, i will answer any i can.
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