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  1. #1

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    Angry mysterious knock

    Hey guys just wanted to get second opinions on this before i go through it all. was going on a trick the other day when my engine picked up a knock. it was pretty bad really loud but i didn't seem to actually blow anything. im guessing its a rod knock but in previous experience that is always accompanied by burning oil which i am not. the car drove a long time after (about 70 miles) to get me all the way to my destination before cutting out right before i got there. now it has no spark which i assume is some sort of engine safe mode that was activated. just wanted to know if this may be something like a lifter etc before i go swapping engines? knocking is rpm related and it wasn't affecting drivability at all except for on downshifts where i was accelerating. car didn't seem to overheat or anything just did it when it kicked down a gear and had a bit of a hard shift. possibly jumped timing? but that still means i need a piston if it was knocking right? (motor is all stock measurements) it should be noted i have a new forged motor to put in and a trans swap to do but its not super convenient timing for either.

  2. #2

    Join Date
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    also the engine is fairly new it only had about 10k miles on it with a head with about 130k miles and i assembled it myself which is why im not doubting its broken as it was my first and only endeavor into an engine at the time. i also just had the ac recharged but i had always driven around with the compressor engaged before this event. although it did blow cold after that XD
    Last edited by heartfire567; 07-08-2017 at 10:58 PM.

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