CYLINDER BASE GASKET 12 hp View larger

CYLINDER BASE GASKET 12 hp

70450

New product

special extra thickness, critical to correct compression ratio, avoiding piston damage,

designed only for the 12hp model waterproof paper gasket, special thickness, between cylinder and crankcase

check crankcase joint is level, use sealant like hylomar

I have a video on youtube about this procedure

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95 Items

£ 15.00

More info

reasons you might want to remove the cylinder(carefully not to damage brittle piston)? :

service cylinder cooling jacket and derust internally on your bench, to keep your boat clean

decarbonise and hone cylinder to improve reliability and power

replace piston rings after it was seized with chromed ones

replace engine main bearings and crank seals

re-thread broken coolant outlet banjo that often clogs and breaks off rotten.

WARNING: do not try to make this gasket yourself, a thinner gasket could cause engine destruction

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