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down_shift
Last seen: 3 weeks 5 days ago
Joined: 8/16/14
Posts: 65
M-25XP - weeping oil from under starter motor.

Background.  The bushing/bearing went bad on my coolant pump.  I didn't notice the coolant leaking until seeing smoke rise from the galley.  I shut the diesel down instantly and momentum carried me to a pier where I could tie up and diagnose.  Yes it was hot.  First checked for a broken blade on the raw water impeller.  Then cycled the raw water COC to confirm the intake was clear.  Both were fine.  Checked the bilge and saw coolant.  Opened the cap and saw that it had been drained.  Topped it off with coolant and she started right up. Left it to idle so she could cool down and then noticed the coolant pump was leaking coolant thru the weep hole as designed.  I should have caught this during a precheck.  My mistake.
Replaced the coolant pump (yes, the $35 Kumar Bros pump with gasket off Amazon is a straight bolt in) and coolant.  Diesel starts, idles runs under load fine.  No unusal noises or vibrations.  Brought it up to operating temp by 2,000 rpm in gear (while in the slip) and saw a new oil leak from under the starter motor.  Perhaps 1 drop every 5 seconds.  Any ideas were I should look to troubleshoot?  The coolant remains clear and no foaming in the oil, but I've only ran it for 10-15 in this condition.
Thanks

Russell Green
S/V "GoodwiII"  #759
1987 C36 MKI TR/WK M25XP
Moored: Deale, MD

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Russell Green
S/V "GoodwiII"  #759
1987 C36 MKI TR/WK M25XP
Moored: Deale, MD