Year Of Manufacture Johnson 4hp

[pbduggins]

I have purchased a Johnson 4hp Seahorse model number 4BR79D. It is a long shaft with no clutch. Can anyone tell me what year it was built?
Also I have a non-running seized 1983 Evinrude 4HP short shaft with clutch. Is it possible, using components from the Evinrude, to convert my Johnson to short shaft with clutch?
Thanks everyone....

 

[Vic.S]

Re: Year Of Manufacture Johnson 4hp

Surprise , surprise its a 1979 model!

Re the second question

look at the parts diagrams for the two models and compare part numbers
find out which bits are the same for both models

http://shop2.evinrude.com/ext/index.aspx?s1=fe734c8d0d019e57d43e69c77c477f81

BTW Wills Marine in Kingsbridge and Oakley Marine in Brighton good for spares
Google will find

www.ybw.com/forums for the best boating forums in the UK (iboats still best for outboard advice though)

 

[pbduggins]

Re: Year Of Manufacture Johnson 4hp

Thanks Vic.
I agree that Wills Marine in Kingsbridge are excellent for help and parts.
Another question regarding the 4hp - where does the cooling water come out? My Johnson 7.5hp puts out a nice stream from under the cowling but I can't see this happening with the 4hp.

 

[Vic.S]

Re: Year Of Manufacture Johnson 4hp

The cooling water leaves with the exhaust gases as is the case with almost all.
As far as I can see neither of the 4hps have a telltale but you'd expect a bit of water to be sprayed out (maybe no more than a fine mist) through the exhaust relief hole on the leg.

 

[pbduggins]

Re: Year Of Manufacture Johnson 4hp

Thanks Vic - you are right - a fine mist comes out through the exhaust holes in the leg.
Best wishes PD