Factory engine case plug
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2nd Gear
Joined: Oct 2017
Posts: 6
Likes: 0
From: England
Factory engine case plug
Being new to Harley I undid the factory plug on a 2015 softail .Thread still ok ..Im going to use locktite 565 and screw it back in just need some advice..Is that ok
Road Warrior
Joined: Nov 2011
Posts: 1,396
Likes: 399
From: Australia
Just be very careful when putting it back in, you dont want to cross-thread it or over tighten it.
Once you get it in, dont take it out again.....ever.
Get yourself a service manual and read up on how to drain Engine, Primary and Transmission fluids.
Goodluck.
Once you get it in, dont take it out again.....ever.
Get yourself a service manual and read up on how to drain Engine, Primary and Transmission fluids.
Goodluck.
Banned
Joined: Sep 2009
Posts: 3,569
Likes: 624
From: deland,florida
I agree,remember, use PIPE sealant,NOT threadlocker
Road Master
Joined: Dec 2008
Posts: 872
Likes: 20
From: Niagara Falls Canada
kirby
does that case plug go directly to the crankcase area through a small passage , not the oil pan area.
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2nd Gear
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Stage II
Joined: Dec 2017
Posts: 2
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From: Alabama
The plug you are talking about is a manufacturing plug to seal engine case from a machining process and not designed as a drain plug. However, a twin cam engine, even though it is dry sump, will always retain 6 to 8 ounces of oil in the crankcase. Over time, after many cold starts, the retained oil becomes fuel diluted and as a result this will also contaminate even fresh oil after an oil change. When i change oil, after draining the oil tank, i remove the pipe plug at bottom of right engine case to purge the fuel diluted oil from the sump as well. This is not a common service procedure. The engine should be hot when removing the plug and it will come right out. Apply thread seal compound and reinstall it to its original depth. I do this every oil change. Dont let it scare you. Just remember it is a pipe plug, install to original depth and don't over tighten.
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