165 L6's out of the bertram. What do they need?

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ttownthomas

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I'm replacing the transom assemblies with rebuilt units. In preparation I have pulled the engines. I plan to degrease them, paint them, replace gaskets, ( oil pan, side plate and valve cover), update them with petronix and replace the rubber motor mounts. I allready rebuilt the carbs and replaced the manifolds and risers. What else should be done while they are out? How can I tell if the starters and alternators are marine grade?

165's - 1.jpg
165's - 1 (1).jpg
 
GA_Boater

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Check the oil pans and timing covers for thin spots from rust. Its hard to tell from the pic, but those are common failure points.

Check all the hoses for soft spots, look for evidence of any oil leaks around the rear main seal, check all the core plugs, check the couplers and might as well throw in a pair of new thermostats and a set of plugs. Just a list of things that are easier with the motors on the floor if the engine room is tight.

I like your roll around dollies. Do they flex when moving the motors?
 
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ttownthomas

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GA_Boater said:
I like your roll around dollies. Do they flex when moving the motors?
Click to expand...

You can't tell from the pictures but there is a piece of square tube that is a structural member holding the 2 "sides" of the dollies together.165's - 1 (2).jpg
 
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ttownthomas

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Starter part number:
1108391

Alternator Part Number:
1100576

Both 1 digit off from what I see in my parts catalog....
 
Scott Danforth

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if the motors are healthy, you have it covered.
 
alldodge

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Yes it would be good, but will also say it would be my guess that since both are the same number, more then likely they are marine. We just don't have access to the old Delco parts books to verify. most starts on those motors last forever.

If you want to double check, find a starter rebuild place and ask them, or go to a GM dealer with an old guy behind the counter and ask
 
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ttownthomas

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alldodge said:
Ignition protected
Without the protection things can go Boom, then your on the nightly news
Click to expand...
I meant from a technical standpoint what makes it ignition protected. What keeps it from sparking?
 
Reserector_

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While you are resealing the engines, consider replacing the rear main seal and the front crank seal in the timing cover. Especially since you plan to reseal the oil pans.
The differences that I have seen in marine grade parts is that they are either sealed, or as in the case of alternators, they have aluminum screening that supposedly absorbs enough heat from a flash to prevent combustion beyond that point. That's how a flame arrestor works.it absorbs heat from a flame...supposedly.
The starter on my engine looked like a car starter. Without knowing the history, I opted to replace it with a marine starter, and it looks different. That is not to say that the one that was on my boat was not marine grade, but I had serious doubts and played it safe. I found them to not be all that expensive.
So I apologize that I cannot tell you what to look for specifically, In my brief experience I have wondered the same thing and found that there are differences. They are not the same parts for more money like I originally thought.
 
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