I've received a message from Mark informing me that the engine has arrived at his premises in Port Townsend.
He sent the accompanying two photos of the engine (without the transmission, which must be mated with it).
The first photo shows the front and left side the engine. That is a 115-amp alternator driven by a flat belt. Above it is the cooling water expansion tank.
The second photo shows the front and right side of the engine. The only maintenance access concern that I had was the oil filter at the lower aft part of the engine. That area will be covered by the galley bulkhead but I should be able to reach it from the top.
Some comparisons:
Volvo weight: 177kg/390 lb, Compression ratio: 23.5:1, capacity 92.6 cu in, max revs 3200
SABB weight: 390kb/860 lb, Compression ratio 20:1, capacity 92.1 cu in, max revs 1800
So it looks like Pachuca will be 213kg/470lb lighter after the change.
5 comments:
Robert that is a very good looking motor. Big amp alternator is beautiful and being driven by a serpantine belt makes it even better.
Sabb engine must have been built when weight was not so much of a factor. Or maybe when your boat was built they contracted with sabb to provide them with engines no-mater what.
Anyhow smaller, lighter engines are in for now. Engine manufactures spin them faster to get desired horsepower and that is the way it is. One of our local engine professionals at kkmi says change oil at 50-100 hrs. and do not get them hot and they will give 7500 hours of servise or more. (do not foget to open seacock) ha ha.
It has been good to follow along via your blog. You are a champion at overcoming adversity. You are showing us all how to drop the lines and go. Good job, keep up the good work.
The big news of f-dock in Richmond Ca. is not about boats, motors, who is here and who is left, the evil habormaster, total breakdown of cal. economy, our nation plunging into economic ruins, or anything as boring as that. Blah- the big news is the pride of f-dock "daisy",is expecting!!!! Yes you heard it here first, sometime in July the Rife family will be a little bigger. Everyone is very excited. Will keep you up-dated on the new mom, as it happens.Barry
Robert,
With 400-500 lbs of less engine weight, that should make a bit of a dent in the boot top waterline. You may not have to raise it as much as you thought!
We had a Volvo diesel in the Morasum and were very happy with it.
Here's to your fitness campaign! Cheers!!!
The new engine looks fabulous!
When I replaced the old gasoline engine in Ode to Joy, It was with an MD2020B Volvo engine. The engine came with an exhaust fitting just like yours. The salt water backed up into the exhaust manifold and caused damage to the head and one valve. Strongly recommend that you unbolt the exhaust fitting and replace it with pipe that has a 180° elbow then inject inject the sea water discharge on the downstream side of the elbow. The elbow should be high enough to be above the water line.
Also you are doubling the RPM that the propeller shaft sees. You will probably be replacing the shaft anyway because of the geometry change, but I recommend that you visit the ABYC Internet site and get the formula they use for sizing propeller shafts. You may need to go to high strength material to accommodate the new torque requirement.
Forgot - you need to insulate the exhaust piping upstream of the raw water injection. The pipe temperature before the raw water injection on Ode to Joy is about 150°C when I am running at high cruise RPM. You should have an exhaust temperature vs. RPM table that comes with the engine's data package to check the temperature.
Post a Comment