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Draining engine

Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Boat Maintenance
Forum Discription: Discuss maintenance of your Correct Craft
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=888
Printed Date: January-15-2025 at 2:54pm


Topic: Draining engine
Posted By: Guests
Subject: Draining engine
Date Posted: October-06-2004 at 8:15pm
Hi, can anyone tell me where the draining plugs are on a 79 ski nautique please. I know of the two on the manifold but where are the others please???



Replies:
Posted By: AWhite70
Date Posted: October-07-2004 at 11:31am
Assuming you have a PCM 351 like my '79 SN There are 6 plugs total:

1 at the rear of each exhaust manifold (2)
1 on each side of the cylinder block (2)
1 at the bottom of the transmission cooler
1 at the cast iron elbow at the front of the engine between the thermostat housing and the water circulation pump.

As you know the 2 in the manifolds are quite large, the other 4 are quite a bit smaller. Going on memory it takes a 9/16" socket to remove them.


Posted By: IrishFooter
Date Posted: October-11-2004 at 4:57pm
I didnt ask the question but I appeciate the answer as well.

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1979 Ski Nautique



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