How Its Made: Evinrude E-TEC

[dennisneal]

I saw this short video on The Science Channel the other day. It features the assembly of a six cylinder, 150 HP, Evinrude E-TEC outboard motor.

I'm surprised by the amount of handwork that is involved in the process.

http://www.youtube.com/watch?v=qSpkRPbLg3o

[Gater Dunn]

I saw this short video on The Science Channel the other day. It features the assembly of a six cylinder, 150 HP, Evinrude E-TEC outboard motor.

I'm surprised by the amount of handwork that is involved in the process.

http://www.youtube.com/watch?v=qSpkRPbLg3o

at the 3:53 mark look at the notch on one of the blades I'd get that fixed

[ROAD Soldier]

I saw this short video on The Science Channel the other day. It features the assembly of a six cylinder, 150 HP, Evinrude E-TEC outboard motor.

I'm surprised by the amount of handwork that is involved in the process.

http://www.youtube.com/watch?v=qSpkRPbLg3o

at the 3:53 mark look at the notch on one of the blades I'd get that fixed

You will also notice that after that the propeller is off after testing. So that is probable just the highly used testing propeller. Now what I noticed that I have experience in is those dam needle bearing they used on both ends of the connecting rods. I once rebuilt a 1964 Johnson 60HP outboard that had those. The difference between working with plain bearings and needle bearings is like trying to get your admiral to give you some after she had some wine compared when its that time of the month. Now I don't know about ETEC's piston rings but that Johnson had special a notch for each ring that had to line up perfectly that was hard to do since I don't know of anyone who has a see through ring compressor. The price of those rings at the time in 1983 was $130.00 USD which is what I payed for an entire rebuild kit for a Chevy 350CID during the same year. So needless to say that is the one and only outboard I have completely rebuild since. I rebuild several outboard carburetors since then but not the entire outboard. I don't know what the 4 cycle outboard engines use for bearings but if it is plain bearings I would be more apt to buy one of those if they did. Since I am a professional aircraft mechanic and a proficient shade tree any other thing mechanic I look at whether or not something can be rebuilt and how hard it would be to rebuild it once it's normal life is done. Lastly and most importantly I look at the cost of the parts to rebuild the engine and when it comes to outboard I noticed the price of part compared to auto engines is huge. So much so it is often times cheaper just to get a used running engine with low hours on it. That dog gone supply and demand thing strikes again making outboard engine part prices closer to Aircraft engine part prices than they are to Auto engine prices. Where is the government bailout on that one?

[raycarlson]

all two strokes use needles for the rods and balls for crankshaft, because their is no pressurized oil to lube them, only the 100-1 ratio blowing by in the intake fuel charge.automotive style bearings would melt in about 30minutes.

[ROAD Soldier]

all two strokes use needles for the rods and balls for crankshaft, because their is no pressurized oil to lube them, only the 100-1 ratio blowing by in the intake fuel charge.automotive style bearings would melt in about 30minutes.

Hence is why I am hesitating taking apart my 20y ear old STIHL Chainsaw that just went out on me .