Jacob Ochs Posted October 31, 2016 Author Share Posted October 31, 2016 Pistons looking good, other than the black oil stains (I believe) on top of them. It looks like pistons 5 & 3 had bad rings causing major blow by. That would explain the oil and smoke out of the valve covers (yes, they are baffled) and exhaust. Lastly, on the bench is the horrors of once again having the engine apart. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
A-man930 Posted November 1, 2016 Share Posted November 1, 2016 So the new rings move around nice and free in their respective grooves (lands) in the pistons right? Keep a wary eye out for any hairline cracks in the pistons. Did you perform a leak-down test or at least a dry/wet compression test before tearing into it? One has to wonder why the rings failed... damage on install? or major detonation? Sorry you're having troubles, but hey you're gonna be a pro at it! :rotf: Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 3, 2016 Author Share Posted November 3, 2016 So the new rings move around nice and free in their respective grooves (lands) in the pistons right? Keep a wary eye out for any hairline cracks in the pistons. Did you perform a leak-down test or at least a dry/wet compression test before tearing into it? One has to wonder why the rings failed... damage on install? or major detonation? Sorry you're having troubles, but hey you're gonna be a pro at it! :rotf: I sure will. The rings havnt even came yet, I'll put them in Saturday night or Sunday morning after the ball! I will update then. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 6, 2016 Author Share Posted November 6, 2016 Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
19comanche86 Posted November 6, 2016 Share Posted November 6, 2016 Wow Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 6, 2016 Author Share Posted November 6, 2016 I know. :( 4 of the 6 pistons were trashed. New ones will be on the way later this week! Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
19comanche86 Posted November 6, 2016 Share Posted November 6, 2016 What brand pistons? You must have had some serious detonation. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 8, 2016 Author Share Posted November 8, 2016 What brand pistons? You must have had some serious detonation. Sent from my iPhone using Tapatalk No idea, they were from summit. I'm assuming it's because I blew a head gasket and ran the jeep nearly to 300* trying to get off the highway and just about locked up the engine... Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 8, 2016 Author Share Posted November 8, 2016 Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
A-man930 Posted November 8, 2016 Share Posted November 8, 2016 No idea, they were from summit. I'm assuming it's because I blew a head gasket and ran the jeep nearly to 300* trying to get off the highway and just about locked up the engine... Detonation during initial tune --> blown head gaskets and possible damage to pistons Blown head gaskets --> overheat Overheating to 300* -->pistons swell in bores and fall apart oops. Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 8, 2016 Author Share Posted November 8, 2016 Looks like I did everything wrong! I should of never tried to tune it by myself. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
A-man930 Posted November 8, 2016 Share Posted November 8, 2016 Lol, don't take it too hard man. Not to be cheesy, but this is how you learn (ok, maybe it's the expensive way, but still). Props to you for having the adventurous spirit, don't give up. Link to comment Share on other sites More sharing options...
19comanche86 Posted November 8, 2016 Share Posted November 8, 2016 Exactly, and it could be worse it could be a DOHC 4.6 cobra motor or coyote. Double or triple the cost and much harder to work on. This is an awesome build. Get it buttoned up and enjoy it. You actually have me considering going a route similar to this instead of an LS1 Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 8, 2016 Author Share Posted November 8, 2016 Exactly, and it could be worse it could be a DOHC 4.6 cobra motor or coyote. Double or triple the cost and much harder to work on. This is an awesome build. Get it buttoned up and enjoy it. You actually have me considering going a route similar to this instead of an LS1 Sent from my iPhone using Tapatalk I vote LS1! Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 11, 2016 Author Share Posted November 11, 2016 So after the new pistons I took it for a test drive and either threw a rod or spun a bearing.... Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
A-man930 Posted November 11, 2016 Share Posted November 11, 2016 damn dude. Link to comment Share on other sites More sharing options...
19comanche86 Posted November 11, 2016 Share Posted November 11, 2016 Wow bro what happened Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 11, 2016 Author Share Posted November 11, 2016 I've yet to diagnose it, I'm shocked. It's going to sit for awhile until I can find motivation to dig into it. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
Newton Posted November 12, 2016 Share Posted November 12, 2016 I've yet to diagnose it, I'm shocked. It's going to sit for awhile until I can find motivation to dig into it. Sent from my SAMSUNG-SM-G891A using Tapatalk Sorry to hear that bro ..i would be kicking the crap out of that thing by now Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 21, 2016 Author Share Posted November 21, 2016 Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
19comanche86 Posted November 21, 2016 Share Posted November 21, 2016 Holy $#!& man. That's a major failure. Is the rod broken? Serous detonation Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 21, 2016 Author Share Posted November 21, 2016 Holy $#!& man. That's a major failure. Is the rod broken? Serous detonation Sent from my iPhone using Tapatalk It's bent, it also blew a hole through the sidewall. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
19comanche86 Posted November 21, 2016 Share Posted November 21, 2016 V8 swapping? What's the plan. Obviously need a new bottom end Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 22, 2016 Author Share Posted November 22, 2016 V8 swapping? What's the plan. Obviously need a new bottom end Sent from my iPhone using Tapatalk I don't know. Considering letting it sit for a good while or selling the body for someone who wants to try putting another 3.4 in it. Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
Jacob Ochs Posted November 23, 2016 Author Share Posted November 23, 2016 Sent from my SAMSUNG-SM-G891A using Tapatalk Link to comment Share on other sites More sharing options...
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