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How Many Crankcase Bolts in Briggs & Stratton Engine?

I took apart my Briggs and Stratton engine and replaced the crankcase gasket. When I got things back together, there is one empty bolt hole, so I think I lost one of the bolts that attaches the sump (oil pan) to the crankcase. However, that hole may have been empty all along.

The parts list online doesn't help because it just shows one bolt as an example.

My Question: How many crankcase bolts should there be?

The engine is a Briggs & Stratton model number 12F612-0115-E1, with a code of 021126FA, and it's on a pressure washer.

Thanks!

3 Answers

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  • ?
    Lv 6
    9 years ago
    Favorite Answer

    This is all I could find on your engine the second and third pages seemed like they could help you: http://bsintek.basco.com/BriggsDocumentDisplay/BIm...

    Best of luck.

  • Texas
    Lv 7
    9 years ago

    If the threads are good, and assuming you have 4 bolts and 5 holes and can at least test each of the holes to ensure it is cleanly threaded, if one hole has been empty there is probably some corrosion there and a bolt won't thread easily, or I'm assuming some amount of age and wear for that assumption.

    I'd be pretty sure that if there is a threaded hole and a bolt will cleanly thread on it, then there should be a bolt there. I'd think this would be something you could take up with a mower repair / small engine shop.

  • Rio
    Lv 6
    9 years ago

    Probably a shipping bolt, mine had them. But you can look at the diagram for count and placement.

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