SAshton
Member
My drain plug only screws in a few threads and then it's tight. The plug end sticks way out. Is this normal or should it screw in almost flush?
98 250 sundancer rear drain plug?
- Thread starter SAshton
- Start date
ghuskin
New Member
- Jul 10, 2007
- 1,089
- Boat Info
- SRV225 Cuddy Cabin, 1983
- Engines
- 228 Mercruiser w/ pre-Alpha1 "R" Drive
I would think that it should tighten more that "a few threads". Have you checked the threads on the plug? Inside the female end? are you using a brass plug, or a "plastic" plug?
If your threads are a little out of sorts, you can run a tap, or a thread chaser (make sure you use the correct size and thread pitch) to run inside to clean up the threads. Also, you can do the same with the plug with a "die", or you can buy a new plug.
My guess is that there is a bit of debris on the internal threads, and that running a tap through will clean it up.
If your threads are a little out of sorts, you can run a tap, or a thread chaser (make sure you use the correct size and thread pitch) to run inside to clean up the threads. Also, you can do the same with the plug with a "die", or you can buy a new plug.
My guess is that there is a bit of debris on the internal threads, and that running a tap through will clean it up.
- Oct 4, 2006
- 2,344
- Boat Info
- 2006 300DA Sundancer
- Engines
- 350 Mags / Bravo III
Are you using the same plug that you took out? Pipe thread is tapered an usually engages 3 to 4 threads before the torque rise begins....ie tightens up.
Check your threads on the hull for sand or other debris. I think most drain plugs are 1/2-14 nptf threads. Also, a 1/2 pipe thread measures 3/4" on the od of the threads.
Check your threads on the hull for sand or other debris. I think most drain plugs are 1/2-14 nptf threads. Also, a 1/2 pipe thread measures 3/4" on the od of the threads.
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