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PCM Pro-Boss GT40 MP EFI - Rusty Distributor
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    Posted: September-15-2013 at 7:18pm
Hello guys,

So following the tuning up of my engine(PCM Pro-Boss GT-40 EFI from a '95 Ski Nautique) were I replaced spark plugs, s.p. wires, distributor cap and rotor (see this topic here), when I removed the distributor cap, this is what I found:





Can I have your thoughts on this? Is this a problem? What do you recommend? Should I start thinking on a new distributor?
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Points: 13514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Hollywood Quote  Post ReplyReply Direct Link To This Post Posted: September-15-2013 at 9:40pm
If it ain't broke don't fix it, same with the exhaust manifolds.
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Points: 66 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PT Skier Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2013 at 6:43am
Does that mean that I shouldn't try to clean it either? I was a little surprised to see rust inside the distributor.
Ski Nautique 196 OB (1995)
PCM Pro-Boss GT-40 Multiport EFI 5.8L 310hp
750 hours
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Points: 7102 		Post Options Post Options   Thanks (1) Thanks(1)   Quote SNobsessed Quote  Post ReplyReply Direct Link To This Post Posted: September-16-2013 at 8:59pm
I would take it apart & clean out the crud. It would be best to get information on gap adjustments before you take it apart. Maybe in a PCM manual somewhere.
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Points: 66 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PT Skier Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2013 at 3:19am
Originally posted by SNobsessed SNobsessed wrote:

I would take it apart & clean out the crud. It would be best to get information on gap adjustments before you take it apart. Maybe in a PCM manual somewhere.

Hmmm, that sounds scary It seems the type of thing I will not be able to perform by myself... I'll try to do some research on that before I move on. I don't recall the Service Manual having that information. Do you have any idea of what might be the consequences of leave it like that?

Hollywood motto "If it ain't broke don't fix it" may prove wise on this.
Ski Nautique 196 OB (1995)
PCM Pro-Boss GT-40 Multiport EFI 5.8L 310hp
750 hours
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Points: 13514 		Post Options Post Options   Thanks (1) Thanks(1)   Quote Hollywood Quote  Post ReplyReply Direct Link To This Post Posted: September-17-2013 at 6:09am
Definitely do the manifolds before this, they can actually do engine damage if leaking significantly.

I just opened up (for the very first time) a distributor from 1998. It looked like yours and the rotor was also rusted on. It finally came off in 3 pieces.
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Points: 66 		Post Options Post Options   Thanks (0) Thanks(0)   Quote PT Skier Quote  Post ReplyReply Direct Link To This Post Posted: September-18-2013 at 10:55am
Originally posted by Hollywood Hollywood wrote:

Definitely do the manifolds before this, they can actually do engine damage if leaking significantly.

I just opened up (for the very first time) a distributor from 1998. It looked like yours and the rotor was also rusted on. It finally came off in 3 pieces.

You had to replace it for a new one?
Ski Nautique 196 OB (1995)
PCM Pro-Boss GT-40 Multiport EFI 5.8L 310hp
750 hours
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Points: 13514 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Hollywood Quote  Post ReplyReply Direct Link To This Post Posted: September-18-2013 at 1:12pm
I was only replacing the cap and rotor. The rotor was rusted on and it broke apart.
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