winterizing Mercruizer 4.3l engine

[bullbear1]

I somehow lost my previous post so I am reposting. I have a 4.3l I/O Mercruizer engine serial #OW656481 built in 2006. When draining water from the engine to winterize, is it suffucient to remove the 5 blue drain plugs or are there also other sites that need to be drained?
Thanks

 

[Bt Doctur]

Re: winterizing Mercruizer 4.3l engine

for raw water cooling should be:
2 in the block , 1 in each manifod, 1 in the large hose going to the thermostat housing or 1 in the power steering cooler.
risers may also need to be drained depending on your hose configuration.

 

[Don S]

Re: winterizing Mercruizer 4.3l engine

Along with the 5 plugs, pull the hose of the power steering cooler to drain. No drain plug in those coolers.

 

[bullbear1]

Re: winterizing Mercruizer 4.3l engine

thanks to all that replied.

 

[achris]

Re: winterizing Mercruizer 4.3l engine

Could I ask a favour? You have a 2006 4.3... Could you check something for me? Do you have a small oil leak at the front of the sump, at the bottom of the timing cover?

Thanks,

Chris......

 

[ktbarrentine]

Re: winterizing Mercruizer 4.3l engine

I somehow lost my previous post so I am reposting. I have a 4.3l I/O Mercruizer engine serial #OW656481 built in 2006. When draining water from the engine to winterize, is it suffucient to remove the 5 blue drain plugs or are there also other sites that need to be drained?
Thanks

FYI... If you click on your name on top of the forum area, you can view/find your previous posts, so wont have to reinvent the wheel...

 

[bullbear1]

Re: winterizing Mercruizer 4.3l engine

No, not that I can see.