evinrude Johnson 60degree or 90 degree

[1983 ercoa 21']

I have owned several of the older 60 degree motors around the 115 range and they have all been great motors but I have found a really good deal on a 96 115 intruder which is a 90 degree block and I'm wondering the good bad and ugly of the newer 90 degree motors. Which is better? Which is more fuel efficient? Any input would be greatly appreciated. Thank you for your time

 

[1983 ercoa 21']

Re: evinrude Johnson 60degree or 90 degree

Ok I got confused on the 90 degree and 60 degree the older ones are 90 degree and the newer ones are 60 my bad. Again any information will be very helpful and greatly appreciated

 

[racerone]

Re: evinrude Johnson 60degree or 90 degree

The 60 degree motors are loop charged.----Have more and expensive electronic bits on them.---Gears in lower unit are a bit smaller.----You can not beat an early 1980's V-4 crossflow engine for simplicity and reliability if you rebuild one properly.

 

[boobie]

Re: evinrude Johnson 60degree or 90 degree

I'll stick with the 60 degree motors as they are a lot better overall than the 90 degree crossflows.

 

[1983 ercoa 21']

Re: evinrude Johnson 60degree or 90 degree

Explain why they are better please?

 

[V153]

Re: evinrude Johnson 60degree or 90 degree

Explain why they are better please?

Yes. Please do.

 

[boobie]

Re: evinrude Johnson 60degree or 90 degree

That just comes from my own personal experience as having to work on outboards for 46 years plus. I'll take the 60 degree any day. That cross flow technology was around since 1958 and we needed something new.

 

[Fleetwin]

Re: evinrude Johnson 60degree or 90 degree

That just comes from my own personal experience as having to work on outboards for 46 years plus. I'll take the 60 degree any day. That cross flow technology was around since 1958 and we needed something new.

Anyone that has operated both would agree that the 60* "loopers" performed much better. Better fuel economy, top end, etc.

A little more complicated-true.

 

[1983 ercoa 21']

Re: evinrude Johnson 60degree or 90 degree

I understand what you're saying but was really wanting more detail information as to what's better what things to watch for. Are they better on fuel? This motor if I get it will be on a 21' tri toon

 

[Fleetwin]

Re: evinrude Johnson 60degree or 90 degree

I understand what you're saying but was really wanting more detail information as to what's better what things to watch for. Are they better on fuel? This motor if I get it will be on a 21' tri toon

Just stated they are better on fuel.

Better all around performance.

The only issues I have heardexperienced were:

1. Head gaskets that were a little bit more sensitive to overheats.
2. Plastic carburetor bowls could warp. But, that can be remedied.

Other than that, nothing I ever heard experienced.

 

[boobie]

Re: evinrude Johnson 60degree or 90 degree

It may be a good idea to post a model # on the motor you want to buy. Stops all the confusion.

 

[Faztbullet]

Re: evinrude Johnson 60degree or 90 degree

It may be a good idea to post a model # on the motor you want to buy. Stops all the confusion.

100% agree.....

Gears in lower unit are a bit smaller.-

All V-6's are same gear ratio....

Head gaskets that were a little bit more sensitive to overheats. Plastic carburetor bowls could warp. But, that can be remedied.

Thiese are 90? problem sas the 60? dont have any gaskets, just RTV silicon and o-rings and entire carb is phenolic plastic. Most common carb problems on 60? is weeping around BB in passageway.

Explain why they are better please?

The 60? looper design has more efficient combustion due to looper design which equals less fuel usage. It develops its torque on the lower/mid range end due to its a stroker motor,that why rpm rating is low (4500-5500) as its at max hp/torque at 5000rpm. Its about 10-15 lbs lighter than the looper, it will have the new fastrack trim, it has a smaller footprint for tight transom areas.

 

[racerone]

Re: evinrude Johnson 60degree or 90 degree

The gears from a newer 60 degree V-4 are smaller in diameter ( same gear ratio ) than an older V-4.-------Tried to fit older gears in there and it was a no go.-------Newer gears are said to fit into the older motors.

 

[1983 ercoa 21']

Re: evinrude Johnson 60degree or 90 degree

I think after reading all the input if this newer motor is what they say it is for the price which is what is so attractive. Think I'll get it. Thanks for all the input and always looking forward to more.

 

[emdsapmgr]

Re: evinrude Johnson 60degree or 90 degree

Prior to around 1986, the 90 degree crossflows were hp rated at the crank. After that, they were rated at the prop, meaning the crank hp was actually 7-10% lower vs the prop rating.. Those 115 looper engines are all prop rated and will outrun an earlier 115 crank rated engine. Those older crossflows did use more fuel when compared to the newer 60 degree loopers. Both had solid construction and ran reliably with normal owner maintenance. You should find the loopers are quieter running, too.

 

[racerone]

Re: evinrude Johnson 60degree or 90 degree

New technology / silent running / fuel economy is great for those folks who buy new every few years.--Money is no object.----For those that are on a beer budget , simple easy to maintain , older stuff can be much better.

 

[Chris1956]

Re: evinrude Johnson 60degree or 90 degree

In addition to what everyone else said, loop charging is a better 2 cycle technology than crossflow. It has better exhaust scavenging, due to multiple (up to 4) smaller aimed transfer ports. The aimed ports clear out the exhaust gases better, and with less wasted fuel.

Loop charging was avail on single cylinder air-cooled motor cycle engines in the 70s. They actually has 7 port loop-charge technology in the early 70s, since it was easier to cast such a single cylinder with 7 ports, with the existing sand-casting process of the day. Multiple cylinder water-cooled blocks needed to be crossflows, until the Lost foam casting methods came along.

 

[racerone]

Re: evinrude Johnson 60degree or 90 degree

Lawnboy power mowers from OMC were loopcharged back in the 1950's.

 

[1983 ercoa 21']

Re: evinrude Johnson 60degree or 90 degree

I like what I'm hearing. Now to get this motor picked up. I'll keep my 1978 model around for back up .