Beta 30 -Rocker cover breather blowing smoke

Ursula123

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Hi Everyone,
Hope you can help (again) Put my boat in the water after a full year out having refit.
Serviced engine - Beta 30 (500 hours) flushed through, all new filters, good oil within spec, new batteries etc.
First time used engine fired up fine but I noticed smoke in engine bay, couldn't see where it was coming from, engine seemed to perform ok (though yacht is new to me) so thought it might be a bit of extraneous oil that would burn off. About 10 engine hours later its still doing it and I've had a closer look and located it to the rocker cover breather and indeed when I take the filler cap off smoke comes out, not a lot, but enough to fill a small engine bay quite quickly, which apart from anything else I imagine if the engine breaths it back in again it must be choking it.
Waters fine no evidence of oil or emulsify, oil's still at the max on the dipstick. I used filling station diesel, didn't want to use fuel at small boatyard think they get a delivery once a year. I was asked if smoke was blue or grey, it's a it subjective but think its grey.
Any ideas? I seemed to get differing opinions on the marina.
Or does it just want a good run? Have to say I've not pushed it to anything like max revs since getting back in the water.
Thanks again in anticipation of your invaluable advice.
 
I suspect your oil scraper rings might have become gummed up during their long period of inactivity. I would try the Italian tune-up first, 15 - 20 minutes at max revs driving the boat. Build up to it gradually so the engine is thoroughly warmed before you push it hard.
 
I suspect your oil scraper rings might have become gummed up during their long period of inactivity. I would try the Italian tune-up first, 15 - 20 minutes at max revs driving the boat. Build up to it gradually so the engine is thoroughly warmed before you push it hard.

+1

Use the engine and it will probably clear up. Don't worry about the engine breathing it back in. If it was thick enough to affect the engine you would have already abandoned ship. :(

Richard
 
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