brian05legacygt Posted May 29, 2019 Share Posted May 29, 2019 I have a 05 legacy gt it jumped time and I got the kit and put it back in time and it was running funny and I thought I messed up so I tore it back down and all the marks are right but my turbo isn't building boost and when it tries it backfires and falls on it's face if anyone can help I'd appreciate it Sent from my 5041C using Tapatalk Link to comment Share on other sites More sharing options...
Max Capacity Posted May 29, 2019 Share Posted May 29, 2019 these are interference fit engines, sorry to tell you, you have bent valves. Oh welcome to the forum. here's the service manual...you may need it. 305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD). CHECK your oil, these cars use it. Engine Build - Click Here Link to comment Share on other sites More sharing options...
kaluce Posted May 29, 2019 Share Posted May 29, 2019 I agree with Max on the diagnosis. You've most likely bent your valves. You can try doing a compression test to confirm it. If you have a USB scope you can try and see how the pistons look from inside the spark plug holes. But you running it like that makes it sound like it's hosed. If the diagnosis is correct, You're looking at a full engine tear down and rebuild. You'll likely need all new heads, and a new set of pistons on one or both sides. You might be REALLY unlucky and blew metal fragments all through your oil galleys. If you did you'll notice some metal frags in the pan and or oil filter. If this happened, add the turbo and anything that touches oil to the replacement. It'll save you time and effort down the road when it fails from ingesting metal too. Link to comment Share on other sites More sharing options...
JmP6889928 Posted May 30, 2019 Share Posted May 30, 2019 How far did it jump time? If only a single tooth, it might not be destroyed. Link to comment Share on other sites More sharing options...
ehsnils Posted May 30, 2019 Share Posted May 30, 2019 If you are lucky it's a bent valve or two, start with a compression test and see which head that has to come off, then you can continue from there. In the best situation all you need is new valves, in the worst it's a boat anchor you have. Link to comment Share on other sites More sharing options...
mechanic58 Posted May 30, 2019 Share Posted May 30, 2019 Your walves - dey are bented. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.