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| Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-05-2020, 10:58 PM
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#1 |
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Main bore housing size
Does anybody know what are the specs for the main bore housing for these engines?
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| The Following User Says Thank You to Nidalas For This Useful Post: | humfrz (04-06-2020) |
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04-06-2020, 12:18 AM
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#2 | |
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Quote:
 What do you mean by the "main bore housing"? |
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04-06-2020, 01:38 AM
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#3 |
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86mm bore 86mm stroke
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04-06-2020, 02:12 PM
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#4 |
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86mm is the cylinder bore and stroke, I'm looking for the main housing diameter specs it's for my machinist to perform an align hone.
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04-07-2020, 12:26 AM
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#5 | |
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Quote:
HOUSING BORE SPEC'S 2.8755" 73.037 mm |
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04-07-2020, 10:14 AM
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#6 |
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The Dictater
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What is a housing bore?
Edit, or a bore housing? |
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04-07-2020, 02:26 PM
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#7 | |
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Quote:
#1-4 mm 73.001 - 73.097 in 2.8740 - 2.8778 #5 mm 72.997 - 73.093 in 2.8739 - 2.8777 Again, this is my own calculation as the was no mention of this in the service manual. I have a bare block in my shop I want to double check with but can't because of the quarantine. I'll circle back to this thread when I have the chance. |
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04-07-2020, 03:20 PM
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#8 |
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This image should have all the information you need to calculate the bore in the block for the crank and bearings.
The below image is from my 2013 manual, I'm not sure if it changed through the years or not. 
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04-08-2020, 07:30 PM
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#9 | |
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Quote:
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| The Following User Says Thank You to humfrz For This Useful Post: | Spuds (04-08-2020) |
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