Crankshaft Seal Rings Evinrude V4 1984 100hp

[edfishing2]

OMC service manual describes replacing seal rings according to stripe code. Can someone please tell me what the stripe code means? My seal rings look worn on one side and would like more information about clearance or stripe code mentioned. OMC lists them for sale according to stripe code 1, 2 or 3.

 

[Joe Reeves]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

There are four (4) different ring sizes. # 1 has 1 stripe, 2 has 2 stripes, and so on. Factory recommendations are that a measurement of .0015" should exist between the side of the ring and the crankshaft slot. However OMC has always provided an alternative procedure as follows.

Starting with the largest size ring (#4), rotate/roll the ring in the slot all the way around the slot. If too tight, try the next smaller size (#3) and so on down the size line. When you find a ring that fits smoothly all the way around the crankshaft slot, the proper size to use is the next smaller size.

Unfortunately, one must possess all four sizes of the rings in order to do this procedure.

Frankly, for what it's worth, in all of my 30+ years of working with OMC, I have yet to install any size crankshaft ring but the first size.

 

[boobie]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

I'll second that one.

 

[edfishing2]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

Does it matter other than staggering these rings which way the gap is pointed?

 

[edfishing2]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

Oh yea Thanks much for the info JR

 

[Joe Reeves]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

When assembling the crankshaft into the block, I simply staggered them.... one facing down, next facing up, next one down etc. Always worked for me.

 

[edfishing2]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

Thanks. Hope to post some before and after photos when I get that replacement spagetti oring received and installed.

 

[emdsapmgr]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

I've never had to replace one. Did one of yours break?

 

[edfishing2]

Re: Crankshaft Seal Rings Evinrude V4 1984 100hp

Crankshaft seal ring did not break. I am doing rebuild and two or three of them looked very (less than .020") worn on one side. One OMC manual says replace any under .156" so I checked them all with micrometer and three were undersized so while that deep at it I replaced them also. Probably overkill.