Re: [AlbinVega] Digest Number 4038

[Bill McCourt]

Bob,

you didn't mention if you were waterborne or not. Stern gland is water cooled. If in the water, you may have a misalignment betweem the combi & the propeller shaft. check the lateral and vertical runout with a dial indicator while rolling the decoupled shafts over. There should be minimal deflection on the indicator. Also check the spacing between the faces of the combi-to-propeller shaft top, bottom and both sides with feeler gauges. They should all be the same to ensure that the shafts are in the same plane of rotation and that the propeller shaft is not rubbing the stern gland anywhere, thus creating the heat.

Bill________________________________
From: "AlbinVega@yahoogroups.com" AlbinVega@yahoogroups.com
To: AlbinVega@yahoogroups.com
Sent: Wednesday, March 27, 2013 5:29 AM
Subject: [AlbinVega] Digest Number 4038
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Digest #4038
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Combi Rebuild;Hot Stern Gland by "whiskerpole" whiskerpole
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Combi Rebuild;Hot Stern Gland
Tue Mar 26, 2013 11:12 am (PDT) . Posted by:
"whiskerpole" whiskerpole
I've just finished(?)a Combi re-build.

Everything seemed to have went well, except that the stern gland get very hot.

My experience with this boat is limited to refurbishing it, so I'm not sure if this is normal or not.

Does the stern gland run hot. Yes it's been greased.

Bob
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[Whiskerpole]

Hi Bill & John
Thank you for the replies. The boats not in the water, so maybe that?s part
of the problem. There?s no heat at the Combi unit or the Nyoil stern
bearing. If it continues to be untouchably hot after launching, I?ll add a
dial gauge to my tool collection. Then again, maybe it?s better to make
sure the alignment is true before launching. It would save another haul
out. I just did a Google search and dial gauges don?t seem overly
expensive. Is there a preferred model to get?
I realize now that I made a mistake by using radiator tubing to attach the
stern bladder to the stern tube, so I?ll need to disassemble one more time
to change the radiator tubing for exhaust tubing. More Folsom BlowsJ. I
think that will deal with the high temperatures better.
As I need to reassemble it (at least) one more time, are there better
options for a stuffing box that work with the Combi system?
Happy Sailing
Bob

 

[winslowbuoy]

Bob - The original vega set up means the the shaft runs through a rubber mounted stern gland and enters the engine compartment through another flexible tube. Once you detach the shaft from the engine it's weight will cause the end of the shaft to sag making meaningful checks very difficult. You are really aiming to get prop shaft in the centre of the stern tube and then holding it there while you line the engine up to it.

The method we usually use involves two hard plastic cones that fit into the stern tube at each end. The prop shaft runs through the centre of the cones without sagging and the engine is then aligned with the end of the shaft.

Mike