Posts Tagged ‘rubber’

Hell Part II

Sunday, September 13th, 2015

I was going to first take care of the generator and while all of the pieces were out change the water pump in the Perkins. With the generator out I would have easier access to the pump. Since we’ve had to order a battery charger  for 240v 50 cycle I needed to make our time at the dock worthwhile and that entails changing the Perkins water pump out now which entails first draining all the coolant from the engine, then me ducking my head under the generator platform while laying on the Perkins and pulling the pump off.

Draining the coolant is easy but just not fun. The drain is behind a large coolant line and above the starter motor. It is just low enough that I can’t get a hose on it and direct it to a container, it is in a small enough space that I can’t get any container of size to catch the coolant; although I try. Most of the coolant drains in the engine sump where we have to suck it out with my handy dandy boat hook sucker and then W/ mostly mops up the rest and we then wipe the area down with soapy water to remove all the coolant. No matter what, coolant seems to get on everything!

Normal Engine work on a Yacht

Normal Engine work on a Yacht

With the coolant out I can wiggle into my prone position over the Perkins and remove the pump.  Fortunately it comes off without a fight.  Four nuts, 1 bolt and two hose clamps. We have it removed and then I plan on reversing the procedure to install the new identical part back on. It is a drop in replacement. If only I knew.

I add a little silicone gasket sealant to the rubberize gasket TAD sent with the pump. I install it, NOT!  The new pump doesn’t sit flush on the gasket.  There is a bolt holding the pump flange on to the Perkins that gets in the way of the new pump housing. I check the original pump and see that it too had been modified. DAMN ! Same vocabulary as before. With the pump removed we (mostly W/ ) clean off the silicone, get the file out and I mark where I need to remove the excess metal.  As I’m heading down the dock I talk to Jim on sv Intentions and he makes my day by telling me he has a small grinder that I can borrow and it will make quick work of that job. An hour or more work has just tuned into 5 minutes thanks for a fellow cruiser! I grind a bit and then dry fit the pump, something I obviously should have done the first time. The pump now barely fits and it is tight. I grind a little more and am now happy with the fit!  Perfect!

We again add a small amount of sealant to the gasket, leaning over the engine, head down, slippery fingers from the silicone, W/ hands me the nuts and washers (hoping I don’t drop any into the engine sump) and I slip them on the studs and tighten down the pump, hook up the hoses and clamp them,

Perkins 4-236 Waterpump On

Perkins 4-236 Waterpump On

reattach the coolant lines,  brackets, and then tomorrow when the sealant is cured I will add coolant. The following day I add coolant and while the thermostat isn’t open I only get to fill the header tank but there is a smallish hole by the thermostat that coolant can drip down to fill the engine. I get about a gallon in and have to wait. Another day and I look for a leak (after having added another

Perkins 4-236 Broken Gasket

Perkins 4-236 Broken Gasket

quart of coolant) and come as close to tears over an inanimate object as I have ever come. There is a little drip at the bottom of the pump. I must remove the pump and to do that the engine needs to be again drained and all the coolant cleaned up. Still close to tears!

Go Slow
Sail Far
Stayt Long

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