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rotorwrench · 07-14-2016, 08:42 AM

Either of the C69A engines seem like likely candidates. You may have to bore cylinders or replace sleeves on either one. I'd just pick the one that might take the least amount of work and start in. If the first one has cracks or any other major repair problems then go on to the next one. Many of the Canadian engines have insert rod bearings for one reason or another. Parts for those might be less expensive and easier to source for you. They should be cleaned & de-rusted as best you can. They tend to have core sand and wire inside the water jackets so all that can be removed should be. Pressure testing the block is the best way to check for cracks. Magna-flux only finds cracks in areas that are accessible. The crank will need to be measured for wear and ground to next under size available if necessary. Many of the 8BA parts can be interchanged in the right combinations and visa versa.

07-14-2016, 08:42 AM	#5
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,440	Re: Aussie 47 mercury Either of the C69A engines seem like likely candidates. You may have to bore cylinders or replace sleeves on either one. I'd just pick the one that might take the least amount of work and start in. If the first one has cracks or any other major repair problems then go on to the next one. Many of the Canadian engines have insert rod bearings for one reason or another. Parts for those might be less expensive and easier to source for you. They should be cleaned & de-rusted as best you can. They tend to have core sand and wire inside the water jackets so all that can be removed should be. Pressure testing the block is the best way to check for cracks. Magna-flux only finds cracks in areas that are accessible. The crank will need to be measured for wear and ground to next under size available if necessary. Many of the 8BA parts can be interchanged in the right combinations and visa versa.