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Drain plug sizes 1980 Ski Nautique |
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koswimmer1967 
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Joined: November-02-2014 Location: Chattanooga, Tn Status: Offline Points: 24 |
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 Topic: Drain plug sizes 1980 Ski NautiquePosted: August-08-2020 at 3:17pm |
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So, I know this has happened to someone before, but I'm really ashamed that it's happened to me.
Winterized boat last year. Took drain plugs out. Just now getting around to getting it ready for the water. (New upholstery just got finished.) Now, I can't find the bag with my drain plugs in it. Anybody know what sizes I need? If I remember correctly, there were 5. Any help would be appreciated. According to my daughter, I've already said all the bad words, so now I'm looking to go buy new ones. Thanks in advance. k
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MACS81SN
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Joined: May-27-2009 Location: NW OH / S. MI Status: Offline Points: 109 |
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Posted: August-08-2020 at 9:25pm |
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If memory serves me, pcm 351, 1” on exhaust, 3/8” on block, 3/8” on water u-tube by impeller, 1/8-27 on trans cooler.
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Mark
1999 -SN - 502 Python 1981 - SN Owned 33 years - Sold 1968 - Mustang - Sold |
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TRBenj
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Joined: June-29-2005 Location: NWCT Status: Offline Points: 21198 |
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Posted: August-09-2020 at 6:25am |
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Never pull the trans cooler drain.
Block and U are 1/4” NPT. If I had to guess on the manifold plugs, I’d say 3/4” NPT. |
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Wilhelm Hertzog
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Joined: June-14-2014 Location: Cape Town Status: Offline Points: 349 |
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Posted: August-09-2020 at 12:44pm |
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Why not? |
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1982 Ski Nautique PCM351W RR II Velvet Drive 10-17-003 1:1 II PerfectPass Stargazer
Do not go gentle into that good night. Rage, rage against the dying of the light. |
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8122pbrainard
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Joined: September-14-2006 Location: Three Lakes Wi. Status: Offline Points: 41045 |
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Posted: August-09-2020 at 1:08pm |
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The cooler being a thin copper shell, many have damaged them by trying to remove a stuck drain plug. Unless you double wrench (one on the hex boss soldered to the cooler shell and the other on the plug) don't even try to pull then drain. Besides, it's alot easier to just remove the cooling water hose on the low end of the trans cooler. BTW, many coolers aren't even equiped with the drains.
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koswimmer1967
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Joined: November-02-2014 Location: Chattanooga, Tn Status: Offline Points: 24 |
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Posted: August-10-2020 at 9:01am |
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Thank you guys for the help. Parts ordered. Swear words minimized.
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TRBenj wrote: