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David in UT
10-31-2005 06:23:32
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Sunday afternoon...time to drill out that broken manifold stud. Shouldn't be a big deal, right? 1. file down the top of the stud, center punch it, start drilling with the left-hand bits
2. drill down about 1/4 inch, insert extractor tool...won't budge...hmmm...gotta keep going.
3. drill down some more, repeat step 2 about 10 times.
4. break through back of broken stud, now the anti-freeze it shooting out all over the place.
5. get a bucket, let it drain, try one more time with the screw extractor, still no go.
6. give up on the extractor tool, get a punch and a pick and start picking out the threads the hard way.
7. get about half way down, decide to try the extractor one more time.
8. too much torque, bang, break the extractor off in the hole...dang-git.
9. spend an hour trying to drill through the extractor steel...dull several drill bits in the process.
10. give up, decide the only way I'll get it out is with a drill press...now gotta get the head to the drill press
11. get a bunch more tools carried out to the backyard, remove valve cover, valve train, fan bolts
12. drain radiator completely, remove hoses, remove radiator and grill from tractor
13. remove head nuts, yank off head, clean off 20 years of tractor poop, move to the garage
14. setup drill press, hmmm, nope that won't work, broken extractor isn't flat enough on top to drill out without screwing up more drill bits
15. aha, it's the first stud on the head, can get to it from inside via the radiator opening. It sticking out into the water jacket.
16. 3 taps on a metal rod pops the broken extractor out of the hole.
17. drill, tap the hole for the new stud.
18. back outside, wrap the engine block in plastic to keep the rain out. Now that the head's off, I might as well do an in-block rebuild.
19. put just about every tool in my collection back where it goes. Total time: 4 hours. (Good thing I don't do this for a living, eh?)
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