jimL
Senior Member
- Joined
- Mar 8, 2015
- Messages
- 359
- Location
- USA
- Vessel Name
- Lemon Drops
- Vessel Make
- 2001 Grand Banks Europa 52
I have a 2005 Mainship 430 aft cabin trawler with twin Yanmars. When we purchased is last year there was a very slight vibration with the port engine above 2000 rpm.
This year the vibration has gotten worse, to the point where I do not run the engines above 2200 rpm. At anything above 2200 rpm, the stuffing box assembly where the stuffing gland is located jumps around by at least .25”.
We’re pulling the boat tomorrow to check for prop damage, although both props were trued immediately prior to the purchase last May (I have the documents and saw the repaired props installed).
My question pertains to the rubber hose that makes up the “stuffing box”. It is 12 years old and bulging between the forward and aft clamps. When I observed the unit ‘jumping around’ at over 2200 rpm, I became concerned that hose would bust resulting in a catastrophic failure. See here for a pic of the stuffing box, I changed the clamps a month ago – this is an older pic, but shows the rubber hose:
http://i258.photobucket.com/albums/hh254/lakesponge/Mainship 430 Aft Cabin Trawler/Port Stuffing.jpg
I provided the yard today with my intent to have the rubber hose stuffing box replaced (at considerable effort and cost). While they have everything apart, they are going to replace the cutlass bearings as well.
Am I being too cautious?
Has anyone replaced their rubber hose stuffing box?
Has anyone had a failure with this critical component?
Thanks
JimL
This year the vibration has gotten worse, to the point where I do not run the engines above 2200 rpm. At anything above 2200 rpm, the stuffing box assembly where the stuffing gland is located jumps around by at least .25”.
We’re pulling the boat tomorrow to check for prop damage, although both props were trued immediately prior to the purchase last May (I have the documents and saw the repaired props installed).
My question pertains to the rubber hose that makes up the “stuffing box”. It is 12 years old and bulging between the forward and aft clamps. When I observed the unit ‘jumping around’ at over 2200 rpm, I became concerned that hose would bust resulting in a catastrophic failure. See here for a pic of the stuffing box, I changed the clamps a month ago – this is an older pic, but shows the rubber hose:
http://i258.photobucket.com/albums/hh254/lakesponge/Mainship 430 Aft Cabin Trawler/Port Stuffing.jpg
I provided the yard today with my intent to have the rubber hose stuffing box replaced (at considerable effort and cost). While they have everything apart, they are going to replace the cutlass bearings as well.
Am I being too cautious?
Has anyone replaced their rubber hose stuffing box?
Has anyone had a failure with this critical component?
Thanks
JimL