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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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04-10-2021, 03:09 AM | #1 |
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Rebuild motor or built short block?
So i'm panicking since i didnt think i would break the motor from a dumb forgetful mistake. I forgot a ratchet on the crank pulley bolt and now my engine on start up immediately has metal to metal contact. Like heavy, violent shaking near the center of the engine(probably crankshaft)
Anyways, plan is to put some pistons, rods on the old block if its saveable. but since find a shop to assemble a built fa20 motor is proving to be quite difficult. Next best thing is to get a built short block from IAG or some other performance shop and put the heads on myself. I am quite the novice case in point being i broke my engine with an install. so yea. how difficult is it? oh yea this isn't for an NA car. Turbo-ed. Trying to reach 400hp or around there. anyone with built motors that were total noobs when they did it? |
04-10-2021, 03:16 AM | #2 |
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This would be a good post for if ever my motor also breaks, sub'ed! Good luck with your project.
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04-10-2021, 07:20 AM | #3 |
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What is your budget? Built block is nice but a long block replacement is about the same cost and you have extra parts to hoard/sell.
I recommend the used longblock
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04-10-2021, 08:43 AM | #4 |
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From what I read, a built short block is the last stop before the ls goes in. Or a k motor or whatever. I'm very skeptical of "built" anything.
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04-10-2021, 10:05 AM | #5 |
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Just get the IAG you get a warranty with it also. I got it but stayed NA.
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04-10-2021, 11:44 AM | #6 |
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You do know that putting heads on is not just a simple case of slapping the heads on the block right? It is a pretty involved process.
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04-10-2021, 02:39 PM | #7 |
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04-10-2021, 02:41 PM | #8 |
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yes sir. From what i've been reading and looking at videos alot more parts since the springs and valves. also the timing components. Putting the cylinder heads would together and putting it on the short block would be easier to me since i wouldnt feel comfortable measuring the clearances on the short block.
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04-10-2021, 03:05 PM | #9 | |
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Just making sure. You shouldn't need to tear the heads down so far as to mess with the springs and valves if your heads are in good shape. Make sure you prep, prep, prep. I recommend printing out the sealant application "maps" from the manual ahead of time. Follow them very carefully.
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04-10-2021, 03:26 PM | #10 | |
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04-10-2021, 04:01 PM | #11 | |
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04-10-2021, 04:35 PM | #12 | |
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How hard is it to pull off the crank spacer. It doesnt seems to move easily. |
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04-10-2021, 04:40 PM | #13 | |
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04-10-2021, 06:03 PM | #14 |
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Just cause im not sure. The spacer is the metal thing that the bolt goes into right? And theres a little positioning dowel/pin on it right? If it that is the crank spacer yea its not budging or moving by hand.
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