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Tue, December 24 2024, 22:09 [ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, [4], 5, 6, 7, 8, 9 ]

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Date Posted: - Wednesday - 04/21/10 - 9:27pm
Author: Brian Sweeney
Subject: Salt Water / Exhaust

Hi

The sea water injection to the exhaust on my M36 is not vented. The motor is presently out and I am wondering if I should have a vented loop. Any thoughts? The motor is a Perkins 4-107

Thanks,

Brian Sweeney

1973 Mariner 36 Hull #9

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Replies:

[> Dual purpose vent -- Paul M31 #106, - Friday - 04/23/10 - 11:09am

On Guillemot, I learned, there is a small 1/4" line that runs from the top of the injection elbow (water side) to a point above the (non-vented) exhaust loop and exits into the cockpit with a continued small line to just above the cockpit drain.

With the engine running, it provides for a tell-tale stream of water into the drain, verifying water flow through the engine; with the engine off, it allows air to flow back and prevents a vacuum from building, or syphoning action from occurring...

With the exhaust located out of sight, I believe this is a good alternate to verify water flow.


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[> [> We have a very similar system and -- GeneVT TM 36C "SANDPIPER", - Friday - 04/23/10 - 12:54pm

it works very well on SANDPIPER.

It is very useful in confirming the engine cooling is functioning at least to this level. We have had NO TROUBLE with it. Dunno why it isn't seen more often

Best wishes,

gs


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