minrags
New member
Has anyone any experience of changing the pre combustion chambers on this engine please?
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Yanmar 3GM 30F
- Thread starter minrags
- Start date
jimboaw
New member
Did that on a 3HM35. that had a blown a head gasket and a couple of the precombustion chambers had some minor pitting. No problems encountered. Just keep everything CLEAN and don't be tempted to re-use copper washers!
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jfkal
Active member
Get a copy of the Yanmar repair and spare part manual. There is a whole bunch of copper washers going back in and if you get the sequence wrong you are in for trouble. Otherwise not a difficult job.
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