dangit'sme
Member
Trying to find out about my outdrive. where can I put the serial numbers in to find out what I have? Was on a site that only does 1991 and newer. Mine is 1985.
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Really just want some info on it. I was told it was a 280, it is behind a SBC 350. Where would I find numbers here?
View attachment 25846
I will be doing the bearings when I pull the engine in the spring. Already have them and the seals.
Good call.
You will never know what headaches and expense you will have prevented.
Keep in mind that you'll want to Pre-Fill the grease cavity (while spinning the PDS), prior to installing the AFT seal.
Make sure to glue and stake the FWD seal into position. You DO NOT want this seal to be pushed out by excessive grease force.
Will probably change out the u-joints also.
Use caution when removing the 4 clamping collar cap screws.
Heat is your friend!
I have no idea what the transmission's brass split ring keeper is. Is that the sleeve between the drive and transmission?
You might be thinking of the vertical shaft spline coupler.
Those typically don't go bad.
They are designed to shear in the event of an impact.
However, they can become twisted.
The split ring keeper is this part with my green arrow pointing to it.
This part encompasses both halves of a split ring (not visible in the image).
How can I tell if it's expanded?
The OEM are brass.
Over time, and when driving from the lower driven gear (i.e., LH prop), the shaft's up-lifts force will cause them to expand.
When these begin to expand, the sides are no longer parallel to one another.
You can easily check this between the jaws of your dial-indicator calipers.
I have these in stress-proof steel (custom CNC made) if interested.
It is behind a 1985 Bayliner Ciera 2750I'd be suspicious as to why there is a "fin" on the drive.... Usually indicative of an under powered boat ( or incorrect drive reduction).
You didn't provide any info on the hull its on.