Hello all,
I'm a long time lurker, first time poster. I have a '73 Cal 29 with the original RWC A4, owned her about 2 years. We love the boat and the quiet and smooth A4. Best thing the p.o. did was tell us about MMI and this forum. I'm always impressed with how generous everyone is with their time and expertise.
Haven't had any major issues with the engine - it starts first try, runs smoothly at around 160 deg., good batching out the exhaust, no steam. Did an acid and water flush per Don's instructions about a year ago, rebuilt the Orberdorfer pump recently.
Last weekend while heading out I noticed a leak coming out from under the alternator bracket and trickling down the water jacket side plate. Yesterday I cleaned off the head and ran the engine in the slip for 7-8 min with no load = no leak. I put it in gear and within 3-4 minutes the leak had reappeared (see picture). The leak appeared along the forward edge of the alternator bracket. Funny thing is the leak stopped when I took it out of gear.
My plan:
1. Remove the two nuts (I've ordered a can of Kroil and will do the tap and soak with Kroil procedure for several days before attempting to loosen) and see if I can seal the stud hole with Permatex.
2. Check the compression.
I've read that pinholes can appear under the bracket. Anyone have that issue before?
I have reasonable access to the engine (thank you Bill Lapworth!) so I believe I can remove the head in place if need be.
Are there any other things I should try/watch out for?
Thanks in advance,
Ken
'73 Cal 29 "Mana"
SF Bay
I'm a long time lurker, first time poster. I have a '73 Cal 29 with the original RWC A4, owned her about 2 years. We love the boat and the quiet and smooth A4. Best thing the p.o. did was tell us about MMI and this forum. I'm always impressed with how generous everyone is with their time and expertise.
Haven't had any major issues with the engine - it starts first try, runs smoothly at around 160 deg., good batching out the exhaust, no steam. Did an acid and water flush per Don's instructions about a year ago, rebuilt the Orberdorfer pump recently.
Last weekend while heading out I noticed a leak coming out from under the alternator bracket and trickling down the water jacket side plate. Yesterday I cleaned off the head and ran the engine in the slip for 7-8 min with no load = no leak. I put it in gear and within 3-4 minutes the leak had reappeared (see picture). The leak appeared along the forward edge of the alternator bracket. Funny thing is the leak stopped when I took it out of gear.
My plan:
1. Remove the two nuts (I've ordered a can of Kroil and will do the tap and soak with Kroil procedure for several days before attempting to loosen) and see if I can seal the stud hole with Permatex.
2. Check the compression.
I've read that pinholes can appear under the bracket. Anyone have that issue before?
I have reasonable access to the engine (thank you Bill Lapworth!) so I believe I can remove the head in place if need be.
Are there any other things I should try/watch out for?
Thanks in advance,
Ken
'73 Cal 29 "Mana"
SF Bay
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