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| Engineering/ Technical Ask technical questions about cars. Do you know how a car engine works? |
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#1
04-27-2006, 07:05 PM
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4 Bolt Main
Does anyone know why some engines with a 4 bolt main will only have a 2 bolt cap on one end of the block?
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#2
04-28-2006, 07:59 AM
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Re: 4 Bolt Main
The bearings in between the ends take the load of multiple pistons/rods(on both sides of the bearing) while the ones on the end take less load because there is only a load on one side of the bearing.
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#3
04-28-2006, 04:10 PM
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Re: 4 Bolt Main
I believe it also has to do with if the engine uses one piece or two pieces seals- not possative though.
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#4
04-28-2006, 07:02 PM
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Re: 4 Bolt Main
Alright, that makes sense guys, thanks. It just confused me when even a Keith Black top fuel hemi block (up to 8000 hp) used 6 bolt mains on a y block design yet the end was still only 2 bolt.
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