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Old 03-06-2006, 13:35   #16
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PLUS replace the Air filter while your at it. It MUST be clean. Especially if it is perhaps on the slightly small size to begin with, and that tends to be a common problem in boats, due to lack of room.


For God so loved the world..........He didn't send a committee.
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Old 03-06-2006, 21:05   #17
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Mark...I may be able to help. I am currently outfitting a new Tayana 48, and have been in contact with a number of other t-48 owners across the country. Several of them have reported that their 4jh2-dte's have been overheating (they have the 88 hp turbo yours the same?). Anyway, I have held on to all their e-mails, and can forward them to you off-line. I'm sure they would be more than willing to help you through I recall, one of them just made some modifications to the heat-exchanger which seemed to help tremendously.
Anyway, hit me off-line if you're interested in reading their travails...

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Old 04-06-2006, 06:35   #18
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Thanks Pat - I'll start with that and see what it gets me.

And I thought I was the only one who had to worry about heart attacks... who woulda thought my boat could suffer one too??
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Old 20-04-2017, 19:12   #19
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Re: This Can't Be Good.... Black Smoke & Soot

I had same problem on same model engine. Turbo clogged with debris after belt failure, which led to clogging of intercooler, all of which led to maxing out at about 2000 rpms, huge amount of soot everywhere, a substance in the water near the exhaust that looked like I dumped a bucket of black paint off the stern. It's better, now, after all of the above repaired and an injector serviced.
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Old 20-04-2017, 19:23   #20
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Re: This Can't Be Good.... Black Smoke & Soot

One more item to check, head gasket leaking between two cylinders. The black is unburnt fuel. I've seen this happen twice.
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Old 21-04-2017, 04:45   #21
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Re: This Can't Be Good.... Black Smoke & Soot

Greetings and welcome aboard the CF, Erik.

Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

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