Posted by JRP on 06/27/16 - 2:04 PM
#11
Joe Kriz wrote:
JRP wrote:
Just a small quibble with your weight figures... My understanding is that the 25" shaft ETEC 150HO is a 433 lbs engine (dry weight). However, that figure does not include the external oil tank, rigging, or oil, which adds another 25-30 lbs to the "all-in" figure. Let's call it 460 lbs.
The 2.8L Yamaha SHO 150 25" shaft is a 489 lbs engine dry weight. We could add another 10 lbs or so for 5 quarts of crankcase oil to that figure, so right around 500 lbs. That yields a weight difference between the two engines of roughly 40 lbs -- a fair bit less than the "spec" weight numbers initially suggest.
JRP,
I think you forgot to add the weight of the "rigging" for the Yamaha?
If you add it for the E-Tec, then you should add it to the Yamaha, right?
Joe, I was referring only to the rigging (mounting hardware, oil lines, etc) associated with the remote oil tank used with the ETEC. The 4-stroke Yamaha does not have a remote oil tank.
Both engines have other rigging (e.g. fuel lines, steering cables (or hydraulics and cylinder), throttle controls, etc) but these should be roughly equivalent.
My 2-stroke Yamaha holds 3-gallons in the 2-stroke oil reservoirs, plus the spare gallon of oil I keep aboard, then the tank, and the rigging associated with it. The weight adds up and it takes up valuable space on a smal boat, too. It's certainly enough to factor.