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Old 08-27-2006, 03:58 PM
Malibu Nut
 
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350 Problems

Last night I was assembling my motor and one of the oil pan bolts broke off in the block....what should I do? Drill it out and tap it and take a risk of metal shavings getting in the oil pan or let it be b/c we already put oil in it and no leaks so far (maybe put permatex in and around where it broke off?).

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Old 08-27-2006, 06:06 PM
RJD RJD is offline
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If the gasket was installed correctly there's not much chance of anything getting in the oil. The correct thing would be to drill it out if you use a reverse twist bit it will probably come out while your drilling.
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Old 08-27-2006, 06:42 PM
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Broken bolt

I was helping an unnamed little brother when he broke one on a 390 ford (ssssshhh don't tell I was working on one) and drilled it with a small bit and used an "easy out" it backed right out smooth as you please.

Good luck !

BarryH
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Old 08-27-2006, 07:16 PM
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You must be real heavy handed to break a oil pan bolt ...
In 40 years I never have ...

With the pan on and the gasket in place ... you should be able to get the broken bolt OUT ... with a reverse drill bit ... and nothing could get into the engine ...

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Old 08-27-2006, 09:10 PM
Malibu Nut
 
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Well we got these pretty stainless ones but they were the wrong size so I was forced at 2 o clock this morning to use the original ones from 1969.
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Old 08-27-2006, 09:29 PM
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If the bolt broke due to being cross threaded and forced in. Drilling out is the only way to fix it. You may need to heli coil it afterwards. the reason it doesn't leak with oil just sitting in the pan is that the oil is below the sealing surface. Ill bet if you start it and drive it you will have a leak.
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Old 08-27-2006, 09:40 PM
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Coat your drill bit in grease to help collect the metal shavings.
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