When to replace plugs etc?

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   Mark - Great question.

I went a little overboard when I got our SN 3 years ago & replaced items that were probably OK as is.

If it is running good, I would leave the plug wires alone.  Pull a couple plugs & look at the center electrode.  If it shows signs of erosion or if the insulator is black, probably time for plugs.

Remove the distributor cap & check it's condition, the rotor & the points.  Check that the centrifugal weights are loose.  

If you haven't already, check the condition of the Raw Water Pump impeller.  If that is cracked or has a bad 'set', time to replace it too.

Check your shaft packing for about 6 drips per minute.  It can be adjusted if leaking too much.

Look at your belts for adjustment & signs of cracking.

Same with you hoses, check for cracking & loose hose clamps.

Check your timing & adjust the carb idle mixture.

Check that tranny oil, or else make an appointment with Eric to get it fixed!

Good luck & enjoy the boat!

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SNobsessed Members Profile Send Private Message Find Members Posts Add to Buddy List Grand Poobah Joined: October-21-2007 Location: IA Status: Offline Points: 7102	Post Options Post Reply Quote SNobsessed Report Post Thanks(0) Quote Reply Topic: When to replace plugs etc? Posted: May-16-2011 at 12:43am
	Mark - Great question. I went a little overboard when I got our SN 3 years ago & replaced items that were probably OK as is. If it is running good, I would leave the plug wires alone. Pull a couple plugs & look at the center electrode. If it shows signs of erosion or if the insulator is black, probably time for plugs. Remove the distributor cap & check it's condition, the rotor & the points. Check that the centrifugal weights are loose. If you haven't already, check the condition of the Raw Water Pump impeller. If that is cracked or has a bad 'set', time to replace it too. Check your shaft packing for about 6 drips per minute. It can be adjusted if leaking too much. Look at your belts for adjustment & signs of cracking. Same with you hoses, check for cracking & loose hose clamps. Check your timing & adjust the carb idle mixture. Check that tranny oil, or else make an appointment with Eric to get it fixed! Good luck & enjoy the boat!
	“Beer is proof that God loves us and wants us to be happy.” Ben Franklin

merbesfield Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: June-22-2009 Location: Lake Rabun Status: Offline Points: 183	Post Options Post Reply Quote merbesfield Report Post Thanks(0) Quote Reply Posted: May-16-2011 at 12:27am
	My 1986 2001 with a 351 is relatively new to me. Last summer was my first season of ownership. I just de-winterized it this weekend and took it for a run. It ran incredibly well. So the question is, when/how do I decide what maintenance to do? Sort of like "If it's not broke, don't fix it", but I know that is not correct. I have read the manual and know what the recommended intervals are. Should I just go ahead and replace all the plugs, wires, points etc and be done with it? Also, if anyone can point me to a post that lists out hoses and sizes it would be great. Thanks for the help.

When to replace plugs etc?

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