don aronow

Flushing the motors with antifreeze yesterday and had a strong smell of formaldehyde. Is this worrisome?

Fenderjack

If it was in salt water and you pulled the boat and it sat for a while thats the smell of the stagnated salt water.JOHN

c_deezy

Back from the dead?

J-Bonz

Thats what I was thinking...................

pookie

if your manifolds got too hot, could be vapor from the ethylene glycol or anti corrosion compounds

Face It

Boy That Stinks.

Rookie

You might have started to burn up an Acetal bearing, washer or shim. I have no idea where one might be in the system. I forget what polymer the housings are made from. Acetal is a self lubricating plastic and when burned or degraded it gives off formaldehyde.

sabercatt

im curious how you know what formaldehyde smells like.

c_deezy

Smelled like himself??

DareDevil

Maybe a little birdy got sucked up in to the flamearrestor and died in the engine ???????????