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jdeltoro

04 Monsoon 340 Changing Distributor Cap/rotor & Plugs

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jdeltoro

Hey fellas, I just recently changed the distributor cap/rotor and plugs I wanted to take some notes on the numbering of the locations to help anyone in the future. I also had a question...

 

I ordered the parts from bakes, the sparkplug wires they sent me were really nice however the #8 wire was about .5" longer that the stock. Will this cause me a problem on the water?

 

Here are the pics, I noticed that the original cap had aluminum terminals when we pulled it the underside was FULL of corrosion. It was literally pouring into the hull as I pulled it off. The new Distributor has either brass or copper terminals I also noticed the rotor had a larger plastic housing with two terminals that touch the spinning base vs the old one only having one.

Old aluminum term Distributor cap

28971077-DE39-499A-A5CA-7CCF689E9FA7_zps

Old rotor, you can see all of the corrosion on the bottom housing of the distributor plate. Looks like a greenish salt.

E462C712-E60F-4793-A7BD-74CDE2251B55_zps

FCDB2060-9BD8-47AA-BA76-3663102FDB83_zps

367CF9E8-08BA-4849-8FAF-B85115033AB1_zps

695C1884-31B6-4FED-848B-A5F634937C39_zps

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coldwater-echelon

Nice write up.  I too changed my cap, rotor and plugs just last week on my '04 Monsoon 340.  The cap I removed had aluminum contacts which were also corroded and I found the same "corrosion dust" on the bottom plate.  The new cap I ordered from Skidim came with brass terminals.  Hope it holds up better.

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jdeltoro
Just now, coldwater-echelon said:

Nice write up.  I too changed my cap, rotor and plugs just last week on my '04 Monsoon 340.  The cap I removed had aluminum contacts which were also corroded and I found the same "corrosion dust" on the bottom plate.  The new cap I ordered from Skidim came with brass terminals.  Hope it holds up better.

Thanks, did you change yours just because of maintenance or were you having issues?

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coldwater-echelon

I am nearing 500 hours and just going through things for preventative maintenance.

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jdeltoro
Just now, coldwater-echelon said:

I am nearing 500 hours and just going through things for preventative maintenance.

Right on, we are around 700hrs. We just got our boat not too long ago and it started bogging/misfiring after riding for 15 min straight at about 28-35mph (our short ride when we are done for the day back to the launch). Changed the impeller, fuel pump, fuel filter, now these... Hoping this is the culprit.

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jtight7

Great documentation!! I scrapped my cap and rotor clean at 200 hours and then changed it at 300 hours and saw a significant increase in performance. Thanks for posting

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coldwater-echelon
10 minutes ago, jdeltoro said:

Right on, we are around 700hrs. We just got our boat not too long ago and it started bogging/misfiring after riding for 15 min straight at about 28-35mph (our short ride when we are done for the day back to the launch). Changed the impeller, fuel pump, fuel filter, now these... Hoping this is the culprit.

Yeah, I bought the boat ('04 Sunscape 21) last fall and didn't run it much.  I just sold my Echelon LX so the Sunscape is now getting more use.  I'm doing the same parts change outs as you just to make sure I don't have any trouble.  Cheap and easy insurance.

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