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ContinuousWave: Small Boat Electrical
75 etec won't troll without fouling plugs
|Author||Topic: 75 etec won't troll without fouling plugs|
posted 01-20-2008 04:59 PM ET (US)
I have a 17' crestliner with a 75 etec on it. I troll for walleye in the bay of Quinte in Ontario. After trolling for any extended period of time my etec is fouling plugs. It runs perfect at idle,(700 rpm) but when I go to accelerate to move to a new spot it runs like a piece of crap. Running xd-100. Sometimes when this happens I nurse it along a little and it will start to run o.k. I'm new to this thread and I noticed there was alot of etec info here. If anyone can help me out I would certainly apprecitate it.
posted 01-20-2008 06:22 PM ET (US)
This does not sound like a problem with the boat's electrical system.
This sounds like a problem with the engine's cooling system.
posted 01-20-2008 06:48 PM ET (US)
jimh is correct. It sounds like the thermostat out of spec (or fouled) or abpressure relief valve that is bypassing water and is not warming up the engine. In that case the motor's computer thinks the engine is in warmup mode and is delivering more fuel and spark to the cylinder.
Take it to an authorized dealer who is trained in E-TEC. There is a service bulletin on how to check for correct temperatures on the motor. There is an improved relief valve if that is the culprit.
If you have dealer problems, call customer service at 847-689-7090 and have your serial number handy and explain the problem.
posted 01-20-2008 06:53 PM ET (US)
So you think it is running too hot.
posted 01-20-2008 07:01 PM ET (US)
I believe Seahorse is saying the engine is not getting up to normal operating temperature while you are trolling.
posted 01-20-2008 09:21 PM ET (US)
Since this is not a small boat electrical discussion, please follow up in the MODS/REPAIRS discussion. Thanks.
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