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496 HO exhaust manifold

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Old 11-12-2018 | 09:49 PM
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From: Miami fl
Default 496 HO exhaust manifold

hi, i just got my baja 27.2 , i install a remanufactured engine i got from victory marine in texas, the engine shows in te pcm 150hrs, looks and runs perfect, i just wanna know when is time tomreplace the exhaust manifolds? I hear that if simething happens in the inside of the exhaust the engine can suffer a big failure. How can inknow if i need to replace them? Mine are whiout waterrail.
can somebody helpme???
thanks
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Old 11-13-2018 | 10:10 AM
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steel or aluminum and what type of water do you boat in? use a magnet it wont stick to the aluminum exhaust manifolds. if its in salt water i would go ahead and replace. if its in fresh your honestly probably still good with either manifold.
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Old 11-13-2018 | 11:43 AM
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Flush after every use. I dont think the 496's have as big of a problem. I've been boating in FL for 10 years now and the only time I have issues is when I dont flush.
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Old 11-13-2018 | 12:36 PM
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I cut a set in half after 8yrs they where far from rotted out they never got flushed they where cast iron.
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Old 11-13-2018 | 05:34 PM
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i ll check tomorrow if is steel or aluminum whit a magnet.
boat is in florida,, salt water! And yes i flush the engine each time i use the boat,
i really try to take the best care of her, i enjoy too much ride the boat,
she is a sweet old lady!
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