engine start up

NewfieBob

Cadet
Joined
Feb 20, 2009
Messages
7
Guys....I ran up my 9.9 johnson today as you told me to. It started up on the second pull...I patted myself on the back and was very excited. This was the first time I ever did a complete rebuild.

I have another problem . I let it run about an hour and then there was a loud bang. I checked the engine out and found that she blew out the lower spark plug. I guess it's stripped. Now I have another problem. How do I fix this,get a new head for it or is there another way.

Thanks Muchly.

Newfie Bob
 

Mas

Lieutenant Commander
Joined
Oct 3, 2006
Messages
1,656
Re: engine start up

I would look for a new head...new or used!

MAS
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: engine start up

possible to helicoil it. sounds like it was not tighten down.
 

NewfieBob

Cadet
Joined
Feb 20, 2009
Messages
7
Re: engine start up

Thanks Chief>>

Put in heli coil which was fairly simple to do and now she runs like a top.

Thanks again

xChief of the Boat
 
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