Power Head Cross Reference for 1958 Evinrude Fisherman 5516 Part 2

[Mike Nazarenko]

Completed the videos that will hopefully provide the cause of the stiffness.  There are 5 videos.

 

Crankshaft in the case with no cover.

https://youtu.be/rzQl_-MyXtM

 

Crankshaft in case with cover no pistons

https://youtu.be/y_xxcm4ykGM

 

1958 Evinrude Fisherman 5.5hp Just Pistons

https://youtu.be/pVomhTwYmhI

 

Pistons connected to crankshaft no cover

https://youtu.be/gRclWuKme84

 

Both Covers on pistons in place

https://youtu.be/WEkBVOvUnyo

 

The crankshaft seems to me to be true and not bent. 

My feeling is that the bushings on the connecting rods are rough and provide a significant amount of resistance to turning the crankshaft.  Since I would replace both connecting rods it didn’t make sense to do one at a time.  This is difficult for me to assess since I have not this type of testing with an outboard motor on the bench.  There is no oil lubricating anything except for the WD-40 in the cylinders. 

[Buccaneer]

When you say “Just the Pistons” does that means no rings installed?

Prepare to be boarded!

[frankr]

If those are without rings, and you have to wrench it over, something’s wrong.  Crankshaft alone is beautiful

[Mike Nazarenko]

Pistons were reinserted into the cylinders WITH the rings, for “Just the pistons”.

I don’t  have a feel (experience) for how easily the crankshaft would rotate in that situation.

As mentioned the only lubrication is from the WD 40 I used to help with putting the pistons back into the cylinders.

[Author]

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