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Forum: Do It Yourself, Boating on a Budget

01-07-2011, 11:39 AM

Replies: 90

"Burnt" spark plugs

Views: 38,997

Posted By SeaHorse32

Cam?

CafeRacer - You haven't mentioned cams - most automotive cams won't work in marine - this is because marine uses wet exhaust with water sprayed into the tailpipe of the marine engine to cool it.
...

Forum: Do It Yourself, Boating on a Budget

01-05-2011, 02:32 AM

Replies: 90

"Burnt" spark plugs

Views: 38,997

Posted By SeaHorse32

cut back plug electrode

The spark plug ground electrode cut back to the center of the insulator electrode was first used by Champion spark plug company D-9-J for example. Johnson Outboard Motor Company developed it in the...

Forum: Do It Yourself, Boating on a Budget

01-02-2011, 11:42 PM

Replies: 90

"Burnt" spark plugs

Views: 38,997

Posted By SeaHorse32

serious engineering

Come on guys - you are taking this guy into some serious engineering and he is working at being a good mechanic.

To calculate the compression ratio you have to decide if your are going to do it in...

Forum: Do It Yourself, Boating on a Budget

01-02-2011, 12:38 AM

Replies: 90

"Burnt" spark plugs

Views: 38,997

Posted By SeaHorse32

Quench combustion chamber

If you are not familiar with Quench combustion chamber - and it has an odd name. It comes from Sir Harry Ricardo an English engineer who started the world into modern combustion chamber designs back...

Forum: Do It Yourself, Boating on a Budget

12-25-2010, 02:50 PM

Replies: 90

"Burnt" spark plugs

Views: 38,997

Posted By SeaHorse32

combustion

Your question about the burnt spark plugs is really about gasoline combustion - two basic phenomenon associated with this are Pre-ignition and Detonation of gasoline also called "knock."

Both of...

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