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Forum: Engines

04-11-2022, 09:59 PM

Replies: 12

Water in oil, 4.3 litre Mercruiser

Views: 4,502

Posted By JonathanG

Thanks. I just got off the phone with the...

Thanks.

I just got off the phone with the shop and their opinion is that there is no point in doing any further testing. Based on the amount of water in the oil, they are 100% sure that the block...

Forum: Engines

04-11-2022, 06:34 PM

Replies: 12

Water in oil, 4.3 litre Mercruiser

Views: 4,502

Posted By JonathanG

So, in terms of the sequence of testing, does it...

So, in terms of the sequence of testing, does it make sense to:

1. remove and inspect the exhaust manifolds and risers
2. check the compression
3. pull the plugs and check for water in the...

Forum: Engines

04-11-2022, 04:07 AM

Replies: 12

Water in oil, 4.3 litre Mercruiser

Views: 4,502

Posted By JonathanG

Mmwjr, The engine has raw water cooling. ...

Mmwjr,

The engine has raw water cooling. Approximately 90 percent of its tie has been in fresh water, 10 percent in salt. I flush the motor every time I pull it out of the salt water. I didn't...

Forum: Engines

04-11-2022, 04:04 AM

Replies: 12

Water in oil, 4.3 litre Mercruiser

Views: 4,502

Posted By JonathanG

Wiigelec. all of the parts on the motor have...

Wiigelec. all of the parts on the motor have been there since day 1. The engine only has about 500 hours on it. The exhaust manifolds and risers have never been replaced.

Forum: Engines

04-10-2022, 03:33 PM

Replies: 12

Water in oil, 4.3 litre Mercruiser

Views: 4,502

Posted By JonathanG

Water in oil, 4.3 litre Mercruiser

I have a 2006 Maxum 1800 SR3 that I have owned since it was new. Every winter, I run the engine up to operating temperature and then fog the engine through the carb. After that is done, I pull the...

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