Shaft Log Size

[Anonymous 121765]

Guys,

I posted this in the Newport forum but have no replies to the following question.
So here goes:

My pal Lenny has an '84 newport 30.

We are hauling our boats for a bottom job in a few weeks.
He will change to a PSS shaft seal.

He did take measurements with calipers but is not 100% sure of the log OD. The original stuffing box hose runs all the way back & makes acurate measure tough. He did say he felt there was a reduction down in size. He mic'd the hose @ 2 1/4" OD, and thinks the log OD is 2".

I took a reading some weeks back and read the log OD as 1-7/8".
I think the reduction in size may be the mudding seal where the log exits the interior of the hull.

Can someone verify our correct dimensions.

Thanks guys,

CR

 

[Steve Walsh]

FWIW, my 1986 Newport 28 MKII log OD is 1-7/8" and has a 2-1/4" OD stuffing box hose on it. I think it is a 7 layer hose, I replaced it about 6 years ago. Engine is a Universal M-18.

 

[Ted]

If your shaft log measurements are between 17/8" and 2" order the PSS shaft seal for the smaller diameter shaft log. The bellows will easily stretch to 2". Many shaft logs are not a consistent diameter so this is a common occurrence. I had a similar situation when I installed mine and was told by the manufacturer's rep to order the smaller. The bellows will easily stretch to fit the range of sizes you are talking about.