Hi all - im still new here (and to atomic 4s)! I still getting to know these little guys..
It seems sticking valves is a common thing - im doing some light work on someones yacht and he told me he never fresh water flushed until i met him and told him too.
Either way - I removed the head yesterday as 2 cyls showed 0 compression and no amount of oiliing/tapping helped -
Turns out both exhaust valves were REAL stuck - they never even dropped back after tapping them down.
I notice the exhaust manifold (at least on this model) goes straight up, surely the salt water will drip back down?
So im wondering if theres a way to prevent this? Perhaps adding in a bend before it goes up to trap a tiny bit of water and stop it from making its way back to manifold/valves?
Judging by the condition of the valves id say this motor has been run without much care for a LONG time - and no acid flush has been done. Im almost worried the block might be bad so doing a psi test on the system after assembly..
It seems sticking valves is a common thing - im doing some light work on someones yacht and he told me he never fresh water flushed until i met him and told him too.
Either way - I removed the head yesterday as 2 cyls showed 0 compression and no amount of oiliing/tapping helped -
Turns out both exhaust valves were REAL stuck - they never even dropped back after tapping them down.
I notice the exhaust manifold (at least on this model) goes straight up, surely the salt water will drip back down?
So im wondering if theres a way to prevent this? Perhaps adding in a bend before it goes up to trap a tiny bit of water and stop it from making its way back to manifold/valves?
Judging by the condition of the valves id say this motor has been run without much care for a LONG time - and no acid flush has been done. Im almost worried the block might be bad so doing a psi test on the system after assembly..
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