Chrysler 105hp difference between the year of 1976 and 1978.

[liusigou]

My motor year is 1978 and online there is a motor of 1976. I want to know if there are a big difference between 1976 and 1978. I want to buy the 1976 as a spare parts

Also can the propeller of 1976 be used in my boat of 1978?

Thank you

 

[jimmbo]

I think the powerhead is the same. The Lower unit completely different, and the props do not interchange.

 

[liusigou]

Hi Jimmbo,

Thank you for your replying. that is what I am concerning. How did you find out the lower unit is differernt and propeller can not interchage?

In the web site of http://boatpropellers.iboats.com/Chrysler-Outboard-Propellers/, there are only three years of 105HP, They are 1977,1978 and 1982. I can not find the year if 1976.

In the website of http://www.boats.net/parts/search/Merc2/Chrysler/parts.html, there are 1976 1977,1978,1982,1983 of 105hp boat motor.

What should I do?

 

[Nordin]

The different is the 1976 has a 2 piece gearcase and the 1978 has a 1 piece.
Sorry but do not know if they are interchangeable. Know that you can put the 76 engine block to the 78 leg/gearcase and vice versa.
Frank A, who knew all of this has unfortunately passed through.

1976 has a beltdriven distributor Magnapower Motorola ignition. The 1978 may have the Magnapower II ignition.
These two ignition system are way different.

 

[liusigou]

How about the propeller. The guy has a spare propeller. Can this propeller of 1976 be used in my boat of 1978? Thank you

 

[alldodge]

The 76 prop will not fit the 78, I have an older with the two piece leg. My block is cracked, but Frank told me that I could use a 1994 or older force motor and my cowling would swap. The two piece leg is a larger drag then the one piece

 

[jerryjerry05]

boatsdotnet. Mercury Motors. two sections to choose from.
​Use the top and open the Chrysler tab and you can find the 76 there,
Open it it in 2 windows and you can compare the 76 to the 78.