Stripped Block Drain Plug - Help!
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Teching In
Joined: Aug 2016
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Stripped Block Drain Plug - Help! So I'm in the process of cleaning out a block that was "rebuilt" and I have an engine block drain plug that is stripped. Any ideas on how to get this off? Does it need to come off? I have all the other plugs out. Any help would be greatly appreciated!
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Joined: Sep 2005
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From: NYC
In the absence of a welder, place a star bit in the hole, one whose spikes are slightly larger than the hole (T50?). Mark where the spikes touch the hole. Using a dremel or rotary tool with a thin tip, carve where the marks are, creating a groove (5 grooves). You might be able to get by with less than 5 grooves. This has worked for me in other scenarios.
Take a chisel and put it on one side of the flat head of the drain plug and hit it in an unthreading direction. I've done this many times with small headed screws.
It would help if you heated the block around the threads, but being careful not to heat the plug. This will slightly expand the block and threads around the plug.
I would look at this as a challenge, not a problem.
It would help if you heated the block around the threads, but being careful not to heat the plug. This will slightly expand the block and threads around the plug.
I would look at this as a challenge, not a problem.
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Take a chisel and put it on one side of the flat head of the drain plug and hit it in an unthreading direction. I've done this many times with small headed screws.
It would help if you heated the block around the threads, but being careful not to heat the plug. This will slightly expand the block and threads around the plug.
I would look at this as a challenge, not a problem.
It would help if you heated the block around the threads, but being careful not to heat the plug. This will slightly expand the block and threads around the plug.
I would look at this as a challenge, not a problem.
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Verdad Gallardo In the absence of a welder, place a star bit in the hole, one whose spikes are slightly larger than the hole (T50?). Mark where the spikes touch the hole. Using a dremel or rotary tool with a thin tip, carve where the marks are, creating a groove (5 grooves). You might be able to get by with less than 5 grooves. This has worked for me in other scenarios.
hope you are well!
With my way, you can reuse the part. Whaddaya gonna do...chisel it back on?
Merry Christmas & Happy New Year!!
Thread Starter
Teching In
Joined: Aug 2016
Posts: 19
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Just to update the thread for future reference for those with the same problem... It took awhile to remove the plug even while trying to make a ridge and cinch it out with a hammer and flat head screw driver. I finally bought a dremel and drilled a ridge all the way to the bottom of the plug right before it met the block. After I did this I tapped it once and it started to budge. Took me all of 3 minutes. Thanks again for all the help