Reply To: Hard to start HA 10 Johnson (1940) 2.5hp

[Monte NZ]

Yes there is certainly something in the leather crosbyman that does the trick, for the primer seals to functiion properly…… as you said, O rings are used successfully in many applications but not so in this case………many times I have read where guys have tried O rings and they just won’t work.
Thanks once again Tubs for your input. I have filed it for future use……. hopefully after Christmas I will open it up and see what the inside condition is like.
In fitting new rings would .003 end gap be acceptable at the bottom of the bore like your LS-37?
I will keep you all informed of what I find.
In the mean time, I will get back to working on my 1964 3hp Johnson and hopefully get it completed to take it away at Christmas……looking forward to having play with it in the lake!

Thanks once again.

Monte NZ