I broke a screw (see yellow circle in uploaded photo for location) trying to tighten my new water pump against the block (03 MDX, 170,000 mi) so that there’s about a millimeter of the remaining screw length (fastened to the block) protruding into the water pump. I used threadlock and silicone around the gasket, and there’s also a bolt for the pump cover that goes through the water pump (green circle in photo) will be fastened pretty close to the broken screw. My question is do you think this will hold up to the pressurized coolant flow or do you think it’s not worth trying and that it’ll definitely leak? Also, has this happened to anyone else or was it just a rookie mistake and I overtightened (although it didn’t feel like I was nearing a tightness that would break a good screw, so I’m thinking it was just old and worn out)?
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