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| | | | Joined: Mar 2012 Posts: 240 'Bolter | | 'Bolter Joined: Mar 2012 Posts: 240 | Hi All,
I was attempting to remove the draincock from my 216 to check for residue build up before re-installing this [new to me] engine. The draincock sheared off just inside the block; a 3/8" or larger screw extractor will likely fit.
Has anyone else done this particular removal and can provide some tips or advice on the removal?
Any thoughts on spiral tip versus straight tip extractors?
Should I just drill it out with a 7/16's and re-tap with a 1/4" npt?
Many thanks for the help,
Bill
1947 3100 Advanced Design
Never, never, never, never give up. - Churchill
| | | | | Joined: Jul 2013 Posts: 863 Shop Shark | | Shop Shark Joined: Jul 2013 Posts: 863 | Bill,
The spiral tip extractors have worked quite well for me. Make sure you soak the remnants of the drain cock down with PB Blaster or Kroil and let it sit overnight. The spiral type extractor should remove the remaining part of the drain cock with no problem. Hope this helps.
Tim
"Pay attention to the details! It ALWAYS pays off."
1949 Chevrolet 3100 Series 1/2 ton Pickup
1964 Chevrolet C10 (Ol' Yella) (SOLD)
1958 Chevrolet Biscayne 2 door (SOLD)
1970 VW Beetle
| | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Heating the area w/ a torch and letting cool will defeat the rust and allow easier removal after soaking.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Feb 2004 Posts: 29,885 Kettle Custodian (pot stirrer) | | Kettle Custodian (pot stirrer) Joined: Feb 2004 Posts: 29,885 | Spiral tip extractors just expand the remaining piece tight into the hole, particularly a tapered pipe thread. I'd suggest drilling the fitting out just a little, soak with KROIL and do a little heating, then use a straight-flute extractor.
Jerry
"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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Love your enemies and drive 'em nuts!
| | | | | Joined: Mar 2012 Posts: 240 'Bolter | | 'Bolter Joined: Mar 2012 Posts: 240 | Thanks all.
I just finished removing the hollow threaded portion after a 2-day soak with PB Blaster and a Hanson #5 spiral extractor (Fixit1958). It required some effort, but it was successful.
Ed & Jerry, I didn't see your posts until after I just finished, those are good ideas as well.
Thanks again.
1947 3100 Advanced Design
Never, never, never, never give up. - Churchill
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