GilbWs6 Posted June 15, 2013 Report Share Posted June 15, 2013 This morning I hoped in the WS6 to drive it to work. I heard a quiet ticking noise echoing off the garage floor/wall. Popped the hood, couldn't hear anything. Got down on the floor and heard the ticking coming from underneath the car. Gave it a little rev and the noise went away. First though was an exhaust leak. Nursed it to work and didn't have any issues. Started it back up to have one of the techs look at it and it sounded the same but when I revved it, it made a slight knocking noise (also coming from underneath the car). I'm hoping this isn't the case but I'm fearing that it's the bottom end. Having our engine tech look at it on Monday. Have any of you had experiences like this with LS1's? Quote Link to comment Share on other sites More sharing options...
BStowers023 Posted June 15, 2013 Report Share Posted June 15, 2013 My longtubes would rattle against the k-member I think it was from time to time. If it's a ticking noise, possible pop off your valve covers and check your rockers and springs...but you said it's underneath so I'm not sure. Stupid question, but have you checked your oil level? Lol don't skip over the easy checks first. Quote Link to comment Share on other sites More sharing options...
starkmaster03 Posted June 15, 2013 Report Share Posted June 15, 2013 Have you heard piston slap before? Normal right after start up and worse when it's cold. My car has been doing it since 56K when I bought the car and now has a 103K without any issues. Quote Link to comment Share on other sites More sharing options...
evil8 Posted June 16, 2013 Report Share Posted June 16, 2013 #5 rod bearing Quote Link to comment Share on other sites More sharing options...
Chadz89GTA Posted June 16, 2013 Report Share Posted June 16, 2013 Rod knock on my 80k mile ls1 Quote Link to comment Share on other sites More sharing options...
GilbWs6 Posted June 16, 2013 Author Report Share Posted June 16, 2013 Stupid question, but have you checked your oil level? Lol don't skip over the easy checks first. No I haven't. I changed the oil myself last Tuesday and would think I'd have oil on the floor of my garage or my parking spot at work. I'll double check it though. I left it in the shop at work til Monday. Have you heard piston slap before? Normal right after start up and worse when it's cold. My car has been doing it since 56K when I bought the car and now has a 103K without any issues. Yes. My car does it too. This sound isn't it. I wish it was. Rod knock on my 80k mile ls1 Definitely not that loud. I'm keeping my fingers crossed that it's a spring or something to do with my longtube install from last fall. Don't get me wrong, I want to do a motor build but I had put it off this year to do some stuff to the house I'd been wanting to do. The more I think about it, I don't think it's a bearing, I managed to drive it from Lancaster to Dublin this morning on the thought that it was an exhaust leak. I would think that the damn thing would have come apart along the 44 mile trek. Quote Link to comment Share on other sites More sharing options...
GilbWs6 Posted June 16, 2013 Author Report Share Posted June 16, 2013 Plus it's a really faint noise. Quote Link to comment Share on other sites More sharing options...
Chadz89GTA Posted June 16, 2013 Report Share Posted June 16, 2013 I had to drive mine like in the video for 30miles back to the shop. Wasn't hard on it but it made it and didn't damage anything internally except the crank which was already shot and the rods hat were on that journal. Nothing some eBay used rods and another crank didn't fix Quote Link to comment Share on other sites More sharing options...
FourString Posted June 16, 2013 Report Share Posted June 16, 2013 Do you have a manual transmission? If so, keep in mind that you may be experiencing throw-out bearing noise. There are several things that it could be, but I'm just throwing this into the mix for consideration. Quote Link to comment Share on other sites More sharing options...
starkmaster03 Posted June 16, 2013 Report Share Posted June 16, 2013 Collapsed lifter that oils up after start up... Quote Link to comment Share on other sites More sharing options...
GilbWs6 Posted June 17, 2013 Author Report Share Posted June 17, 2013 Thanks for all the ideas. I'm keeping my fingers crossed that it's not the bottom end. Quote Link to comment Share on other sites More sharing options...
GilbWs6 Posted June 18, 2013 Author Report Share Posted June 18, 2013 Engine guy was bogged down today with Cordell's favorite things to do when he was a GM tech (3.6 timing chains). I took a video of it. Seems to be getting louder. Another person said they thought it sounded like an exhaust leak without me provoking a comment. That's 3 people that have thought that other than me. Granted, none of us are techs. Quote Link to comment Share on other sites More sharing options...
Archie Posted June 18, 2013 Report Share Posted June 18, 2013 Make sure all your spark plug wires are connected Quote Link to comment Share on other sites More sharing options...
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