Short or Long Shaft?

[zul]

I have a 14 foot aluminium boat. Seller has an 18 hp Evinrude, seems like a good match.
The boat measures 15.5" at transom and the Evinrude measures 18". Seller says it's a short shaft and correct fit ...

The motor is from the 60's and in very good shape. Seller will let me tinker and test prior to purchase.

Will this motor fit the boat?

thx!

 

[racerone]

Your boat is for a short shaft motor.---------Ask the seller if there is a 5" spacer between the lower unit and exhaust housing.-----Most folks do not know how to identify long and short shaft versions.-----My bet is that the motor in question is indeed a short shaft without the spacer !------???----This Evinrude measures 18" you say.-----18" from where to where ?????

 

[thatone123]

I find that the manufactures are also confused on shaft length as many are "in between" the standard 15 and 20 designated lenghts. Measurement is from the bottom of transom bracket to the cavitation plate, but many to me seem to be off by at least an inch or more and can be very confusing.

 

[zul]

18 hp Evinrude as measured from bottom of transom bracket to cav plate, 18 inches. Will this be a small, medium or large drop in preformance?

Ive read where I can add a block spacer on top of boat transom --- ?? --- is that a sound idea or will the motor drop off the back?

jack plate seems a bit scetchy, are jack plates solid or potential problem?

 

[zul]

I just got the serial number, where can I use that number to research the motor?

18702R-E07895

it's probably made in the 60's. Has a starter and a stearing plug/port. Interesting features, that i do not need.

 

[oldboat1]

Do the tinkering and testing, and if it meets your expectations put it on the boat. The 15" plus lengths (17" or 18") in '50s and '60s motors was probably to accommodate a keel in wood boats of the period. If you need to or want to, you can block it up an inch or so on top of the transom -- clamps will continue to hold the motor in place.

 

[hardwater fisherman]

I just got the serial number, where can I use that number to research the motor?

18702R-E07895

it's probably made in the 60's. Has a starter and a stearing plug/port. Interesting features, that i do not need.

1967 Model and I think the 2 before the R indicates a short shaft.... Google 18702R and you should find more info...

 

[racerone]

But it is so easy to change these motors from short to long.-----And from long to short with a kit.

 

[hardwater fisherman]

Yes your right I guess I should of said it left the factory as a short shaft... I suppose we wont know until he provides a picture or answers your question about the 5 inch spacer....

 

[zul]

There does not appear to be any add-ons or extensions to the original shaft. Must be a short shaft. The motor looks super clean, in and out. Looks like very little use or abuse. Only one spot with corrosion and the rest looks like 'new' (for a 60's motor).

I've been Googling the serial number and there is very little info on it. Some sites don't go that far back and another doesn't have this specific motor listed. It does look like a 1967 short shaft Fastwin.

Tonight was the first time I could place it into the large bucket of water and pull the cord. Choke pulled out, squeeze the ball ... Took several pulls, but it finally turned. Several more pulls and it finally started, sputtered and then died. Turned the throttle up to 50% of full, pulled several more times and it started again. It wants lots of choke. Push in the choke and it wants to sputter out. It like lots of throttle. Turn throttle down and it wants to sputter out. Then it died.

Tried to start again and it wouldn't. My arm hurts.

If it isn't obvious yet, this old small motor is all new to me and I've lots to learn.

#1: What is that small dial to the right? It's labled 'low speed mixture L R' Should I turn this clockwise or counter-clockwise with the strating problems?

#2: Previously, I wasn't interested in connecting a battery with the auto start. Where can I find the proper connector for the starter? Again, the manual has not been easy to find and I have no way to source parts. Can I go battery direct without the specific starting wires?

Does anyone start an 18 hp motor with the pull cord? My arm still hurts.

thx

zul

 

[racerone]

It is a short shaft.----Recoil may not be timed properly for easier pull start effort.

 

[zul]

It does spit a nice stream of water when it is running.

 

[bwkre]

I have the 61 model of the 18hp. Choke and throttle up to the limit in neutral. Usually 2 pulls to start and back off the throttle immediately. Choke is either on or off so sometimes I have to bump the throttle abit to keep it running. I believe ccw on the low speed control will increase the low speed idle, runs a little richer. Helps when trolling slow.

Racerone could you elaborate on recoil timing. Interested to know what it is.

 

[racerone]

Your best bet is to install a new impeller.-----Simple reason is.-----There is no warning or shutdown system for oveheating.-----You may damage the motor beyond reasonable repairs should an old impeller fail.

 

[racerone]

Recoil timing has been discussed many times.----Just search for it !!

 

[hardwater fisherman]

Iboats and shop evinrude go back to 1968 for parts listings.. Another site I use goes back to 1955,but for some reason 1967 18hp is missing.. They have a 1966 and 1968 parts listing....If you use 18802 you will find parts listings for your motor....I do not think there were any major changes made..

 

[racerone]

In 67 Johnson MARKETED a 20 HP and Evinrude continued to MARKET the same 22 cube motor as an 18 HP.-----Parts for all intents and purposes are the same.----Well other than maybe the cylinder head.

 

[hardwater fisherman]

I was not disputing the fact there was a 1967 evinrude. I was just offering him some help to find a parts diagram.. as he said he couldn't find one.. I just figured he could use the 1968 diagram...

 

[racerone]

Correct these motors were so well made there was no need to make changes.------Changes are made when sales drop due to changing market conditions.------Henry Ford learned the concept too when folks were offered different colours by the competition.-----He insisted on black for many years.

 

[54bobby]

i have 3 of these 18802's, your part search will be for the 1968 engine. these engines are easy to work on and with a little tlc will be on the water when newer 4 stroke motors are in the bone yard. BUY THE SELOC MANUAL #1301, then google and buy the specific factory parts and repair manual manual for that year. all these 18, 20, and 25 hp engines are all the 22 cubic inch engine with minor changes through out the 1960's. google leroys ramblings too. good stuff,

by the way, just the mounting bracket for this engine is worth 150 bucks, 300 new