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Old 22-07-2022, 10:01 PM   #1
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Campion 165(seb)'s Avatar
Country: Denmark
Location: The Island Fyn
Occupation: Worker
Interests: Going fast, and drinking GT's😃
Boat make: Campion 565
Engines: 300 Promax
Cruising area: Mostly around water...

Join Date: Mar 2009
Location: The Island Fyn
Posts: 369
Blown powerhead

Hello Boatmad - Advice is needed

My Mercury Promax has blown the powerhead.
I have pulled the cylinder heads off and cylinder 4 is gone, and the cylinder-rod (?) has made two very nice holes in the side of the engine block.
What could I expect to get from the engine in parts?
- I am not going to do a rebuild, but perhaps somebody is up to the task.

If anyone is interested here are some specs:
Engine is located in Denmark, hours aprox 250/h, standard midsection with exhaust, newer Torque Master Standard Rotation with torque tab, Alien cover etc.

(I can't seem to upload pictures, so send me your email for further pics)

Best wishes to all.
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Present boat:
Campion 565/300 Promax

Recent boats:
Phantom 21/225 Optimax
Fletcher 199 Bravo/150 Yamaha
RING 16/90 Yamaha
Fletcher 199/200 Merury
Mustang-Trekpoint/50 Suzuki
Fletcher 161/100 Mercury
Fletcher 160/100 Mercury
Fletcher 199/200 Mercury EFI
Campion Cortes 165/200 Mercury
Global 13/50 Mercury
Selco 15/35 Johnson, 50 Mercury
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Old 01-08-2022, 09:46 AM   #2
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RossM's Avatar
Boat make: Phantom 23

Join Date: Mar 2006
Posts: 1,683
Send a message via MSN to RossM
I've got a lovely drop on 300 promax powerhead, 0 hours since rebuild, Light flywheel, CCM Reeds, 57cc Heads, Ported exhaust and behind the liners.
Message if your interested
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