Sudden Death!

hgmatt

Seaman
Joined
Jul 26, 2007
Messages
69
So, several weeks ago I was out on the lake and my motor died. Started up without any problems, but died about 5 minutes later. At this point my battery was too discharged to start the motor again and the bendix was stuck in the flywheel. Here's the link to that posting.

Anyways, got towed back and last night was the first opportunity I got to work on the motor again. After finally getting it to start (charged the battery), the motor started right up and ran no problems before I shut her down. I pulled the plugs to see their condition, and discovered that they were covered with the expected oil/gas. My question is this, I think the cyclinders/plugs are cold fouling, but the plug condition doesn't look exactly like the plug diagrams in Chapter 3 of the Clymers manual. Rather than looking like the normal burning, the plugs look very much like the cold fouling, except that there is little desposit build up between the electrode and the outer part. All of the deposits are distributed evenly along this outer part (flat thick ring), and resembles the diagrams cold-fouling, even dispersion. The plastic/ceramic seperating the electrode and the outer ring is brown with what looks like a carbon streaking effect connecting to the outer ring, but these are very faint.

Any help will be much appreciated.

Thanks,

Matt
 

maxum247

Lieutenant
Joined
Sep 18, 2007
Messages
1,363
Re: Sudden Death!

So, several weeks ago I was out on the lake and my motor died. Started up without any problems, but died about 5 minutes later. At this point my battery was too discharged to start the motor again and the bendix was stuck in the flywheel. Here's the link to that posting.

Anyways, got towed back and last night was the first opportunity I got to work on the motor again. After finally getting it to start (charged the battery), the motor started right up and ran no problems before I shut her down. I pulled the plugs to see their condition, and discovered that they were covered with the expected oil/gas. My question is this, I think the cyclinders/plugs are cold fouling, but the plug condition doesn't look exactly like the plug diagrams in Chapter 3 of the Clymers manual. Rather than looking like the normal burning, the plugs look very much like the cold fouling, except that there is little desposit build up between the electrode and the outer part. All of the deposits are distributed evenly along this outer part (flat thick ring), and resembles the diagrams cold-fouling, even dispersion. The plastic/ceramic seperating the electrode and the outer ring is brown with what looks like a carbon streaking effect connecting to the outer ring, but these are very faint.

Any help will be much appreciated.

Thanks,

Matt

If your sparkplugs are indeed cold fouling, wet oil or fuel deposits are caused by "drowning" the plug with raw fuel mix during cranking, overrich carburetion or an improper fuel:eek:il ratio. Weak ignition will also contribute to this condition. max!
 
Top