Originally Posted by Joe Perez (Post 1506717)

Originally Posted by hi_im_sean (Post 1506775)

@Erat you ever see one this good?

Squirrel cage already contacted housing. AHU is from 1983, were going to replace the entire thing i think.

Originally Posted by Erat (Post 1506803)

I sure did hear it squealing. When I sent an employee up there he decided to change the belts and when he changed the belts he added extra tension on them. If you look at the angle in which the shaft went almost exactly lines up with the angle that the belts are on.

Built a mount for the new piston style vibrator. Now I have to find another use for the old ball vibrator.

https://cimg6.ibsrv.net/gimg/www.mia...17101083e1.jpg

Originally Posted by Erat (Post 1506803)

I sure did hear it squealing. When I sent an employee up there he decided to change the belts and when he changed the belts he added extra tension on them. If you look at the angle in which the shaft went almost exactly lines up with the angle that the belts are on.

Built a mount for the new piston style vibrator. Now I have to find another use for the old ball vibrator.

https://cimg6.ibsrv.net/gimg/www.mia...17101083e1.jpg

Originally Posted by Joe Perez (Post 1506793)

How on earth are you people destroying bearing blocks so dramatically?

Like, did nobody notice the loud squealing sound for a month?

Originally Posted by Joe Perez (Post 1506717)

It's been 30 years since I was down in that engine compartment, so forgive me if I mix up a detail or two.

This was an open-sea vessel, not a lake-duty fishing boat. It's my recollection that each of the two engines did have an automotive style closed-loop cooling system, with an expansion tank and all the stuff you'd expect under a car hood except for the radiator. Instead, the engine coolant, after passing the thermostat, went through a heat exchanger which functioned a bit like an air-water intercooler, but with water in both halves. An auxiliary pump driven by the accessory belt drew raw seawater in from the underside, passed it through the heat-exchanger to draw heat from the engine's primary coolant, and then dumped the warm raw-water output of the exchanger into the exhaust manifold, or a device very near it. A thick rubber hose exiting this then led the seawater / exhaust mix aft past the gearboxes. I do not recall the routing that the hose took on its way to the outlet at the stern, nor whether the exhaust ports themselves were above or below the waterline.

I'm trying to find a picture of a similar engine bay, but Google isn't being my friend. The net effect of being down there was not entirely unlike this, but wider with enough space between and aside the engines for a 10 year old kid to fit into:

Kind of halfway in between the two, and accessed from the top, by pulling up a couple of large deck panels in the cabin just aft of the galley.

Originally Posted by y8s (Post 1506812)

There's a lot of jokes to be made here. I don't know where to start.

Originally Posted by chiefmg (Post 1506901)

I always try to use sealed bearings for things like pillow blocks and other uses where people can under/overgrease things (KISS principle). I can't tell you the number of times I have opened a motor to find the single-shield bearing was installed backwards and the stator was full of grease. Or, there was no grease in there at all.

---

---

Originally Posted by Erat (Post 1506915)

Engineering:

Originally Posted by m2cupcar (Post 1506981)

Pos cat for perfect pie cuts.