I had some cooling water seeping by the water jacket side plate gasket and has scaled up the alternator side of the block badly. I removed the alternator, starter, accessory drive pulley and scraped away all the loose paint. The rust on the upper part of the block seemed to be very superficial however down on the flange where the engine mounts bolt on and below on the oil pan and the engine mounts it seemed to be a bit worse. I was able to loosen and remove the water jacket side plate the bolts and the threads in the side of the block are in surprisingly good shape.
I will get some photos and add them to the post the next time I am at the boat
The engine is a c.1973 Late Model A4, Raw Water Cooled, Direct Drive, 2 blade 11x7 Prop. No Upgrades in an Ericson 29
Love the engine....Overall the engine runs well has good compression (around 100psi on all cylinders) A little bit of blow-by fumes. Starts easily, runs around 170 deg when cruising along, and has relatively good power in calm seas however slows to 3 or 4 knots with a stiff headwind.
I have the Moyer service and overhaul manual but the details are a little sketchy in this particular area
1. How would you assess the condition of the exterior of the block
2. How do I save the block from deteriorating further due to external corrosion (ospho? Engine Enamel?)
3. Inside the waterjacket is VERY gunked up (I'm amazed it cools at all). What should it look like when cleaned up? Should there be passages all the way through between each of the cylinder walls? How do I clean it up and get all the gunk out?
4. How do I seal and re-install the waterjacket side plate so I dont get any more cancerous water leaks? Especially, how do I seal the mounting bolt holes?
5. There wasnt a diverter cap installed on the side plate T-Fitting. should there have been one? Should I add one?
Thanks in advance... I'll add photos when I get a chance
Tug
________
E32
I will get some photos and add them to the post the next time I am at the boat
The engine is a c.1973 Late Model A4, Raw Water Cooled, Direct Drive, 2 blade 11x7 Prop. No Upgrades in an Ericson 29
Love the engine....Overall the engine runs well has good compression (around 100psi on all cylinders) A little bit of blow-by fumes. Starts easily, runs around 170 deg when cruising along, and has relatively good power in calm seas however slows to 3 or 4 knots with a stiff headwind.
I have the Moyer service and overhaul manual but the details are a little sketchy in this particular area
1. How would you assess the condition of the exterior of the block
2. How do I save the block from deteriorating further due to external corrosion (ospho? Engine Enamel?)
3. Inside the waterjacket is VERY gunked up (I'm amazed it cools at all). What should it look like when cleaned up? Should there be passages all the way through between each of the cylinder walls? How do I clean it up and get all the gunk out?
4. How do I seal and re-install the waterjacket side plate so I dont get any more cancerous water leaks? Especially, how do I seal the mounting bolt holes?
5. There wasnt a diverter cap installed on the side plate T-Fitting. should there have been one? Should I add one?
Thanks in advance... I'll add photos when I get a chance
Tug
________
E32
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