Removing water from engine post-repair

[mark1905]

What is the best method to totally remove water from an engine after head repair? Has anyone tried an automotive type flush? Sea Foam? Any suggestions besides 10 oil changes in a row?

 

[Philster]

Re: Removing water from engine post-repair

Engine up to operating temp for a few minutes: Change oil.

Repeat as necessary.

That's about it. You can remove and disassemble the engine, too.

No magic ingredients can be added to assist.

Edit: change filters, too. Some folks have replaced a quart or two of oil with diesel to speed things up.

 

[Bondo]

Re: Removing water from engine post-repair

Ayuh,... What motor ya workin' on,..??

This is the Outboard forum, 'n yer tagline says 3.0l Mercruiser.....

 

[mark1905]

Re: Removing water from engine post-repair

Whoops! Good call. Please move to the I/O non-repair. I'm working on my Mercruiser 3.0..

 

[Bondo]

Re: Removing water from engine post-repair

Whoops! Good call. Please move to the I/O non-repair. I'm working on my Mercruiser 3.0..

Ayuh,... Then change the oil, 'n filter, 'n Run it....

Once up to temp, the water will evaporate off....

 

[mark1905]

Re: Removing water from engine post-repair

I'm up to my 5th oil change now and I'm still getting oil that looks like this: http://i.imgur.com/Ky1oa.jpg

(Site won't link to images right now)

Any chance that I just need to flush it more.. or am I still getting water intrusion?

 

[mark1905]

Re: Removing water from engine post-repair

Crap. That's what I thought. Looks like next stop is cylinder head removal.. :facepalm:

 

[mark1905]

Re: Removing water from engine post-repair

Actually, that's what we just got done replacing along with the exhaust elbow in hopes that's what it was. Exhaust ports had specs of rust in them and it was badly corroded. Now I'm thinking that it's the head.

But.. after consideration, I think that I'm going to go ahead and just repower. It's either spend $600 replacing just the head and still have a 15 year old lower end that's been beat to hell and has a slight rod knock from the water in the oil or spend $1800 on a brand new/ no core charge long block that I know is good. http://www.flagshipengine.com/catalogpages/23/page23.htm

Curious about a "Vortec" 3.0L though..? I've heard good things about the company..

 

[Bondo]

Re: Removing water from engine post-repair

Actually, that's what we just got done replacing along with the exhaust elbow in hopes that's what it was. Exhaust ports had specs of rust in them and it was badly corroded. Now I'm thinking that it's the head.

But.. after consideration, I think that I'm going to go ahead and just repower. It's either spend $600 replacing just the head and still have a 15 year old lower end that's been beat to hell and has a slight rod knock from the water in the oil or spend $1800 on a brand new/ no core charge long block that I know is good. http://www.flagshipengine.com/catalogpages/23/page23.htm

Curious about a "Vortec" 3.0L though..? I've heard good things about the company..

Ayuh,.... Good Idea,.... I'd bet it's yer Block, not the head anyways....

The "Vortec" in this case is GM marketing....