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| Scion FR-S / Toyota 86 GT86 General Forum The place to start for the Scion FR-S / Toyota 86 | GT86 |
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08-13-2021, 11:19 PM
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#1 |
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Junior Member
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rebuild 2013 scion fr-s engine still knocking?
Please help >.<
I have had my engine rebuilt by changing the short block due to the infamous issue with these engines going bad. Just like many other frs/brz 2013/14 owners, after i got my car back from the engine valve spring recall it went bad. For mines, since i baby it too much i barely drove it, and the problem came after 1year. It had a rod knock. I had second/third/fourth/ opinions with the diagnose and they all said the same. And then, I had it fixed by replacing the short block. Now my question is with this video Im going to attach. Do i still have a knock? please watch the whole 28 seconds as i move the phone around. |
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| The Following 2 Users Say Thank You to jjswamp For This Useful Post: | humfrz (08-14-2021), theneptune86 (08-16-2021) |
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08-14-2021, 12:26 AM
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#2 | |
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Quote:
 A few questions: How many miles on the new block? Do you have any power mods? Have you tracked the car with this engine? To me, it doesn't sound like a rod knocking, it sounds more like a valve tappet out of spec. Others will chime in soon. Good luck. |
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08-14-2021, 02:33 AM
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#3 |
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Yo, @Ultramaroon - this fellow @jjswamp , needs some help. What do you hear?
He says the block has about 10,000 miles on it; he hasn't tracked it; no power mods. Others? Where is everybody? - 
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| The Following 2 Users Say Thank You to humfrz For This Useful Post: | Ultramaroon (08-14-2021), YamahaR86 (08-17-2021) |
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08-14-2021, 05:05 AM
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#5 |
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Would be inclined to agree, I don’t think it’s rod knock, sounds more like the valve train, I would not be surprised if your valves are out of tolerance, having built the valve train on an FA20 it’s a time consuming meticulous job and “close enough” is not good enough. Either way I think your going to have to strip the heads to find your problem, and hopefully it’s not a bent valve.
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08-14-2021, 04:19 PM
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#6 |
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義理チョコ
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I agree. If it has sounded like that since the first startup, it just needs properly shimmed.
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