MitsuStyle - View Single Post - 3rd gear knock... I need expert advice PLEASE

Onefast99gsx · 08-04-2005

Wow! What an interesting lunch hour. Thankfully my lunches are 1hour. I decided to do about 2 pulls during lunch because it's less humid out. 1st pull..Shit! same thing knock! Starts at about 5700 in 3rd gear pulling about 2.5* of timing. Was also signs of .7* knock at the top of 2nd gear. So next and final pull i decide to richen it and basically go back to zero's on the dsmlink sliders. So i took off from a dead stop this time. Felt pretty good, 0-60mph felt great, get to about about the middle of 3rd gear and POOOOOOOF!! Car quit instantly. Not Good! I'm 3 miles from home, no phone with me. I get out look under the hood and it looks fine, no dripping of oil, Whew! In my past experience, that's from a hose blowing off. I couldn't find which one though. Must be behind the bumper cover. So again with experience i bury the fuel sliders to -40 and was able to limp it home at about 15mph, put..put..put. I found the hose that blew off. Had to be a bitch of a one to get at too. Dam, and i even have t-bolts on the dam thing. Not sure if this was on tight till the last moment and then she blew off or whether it was ongoing. Question: Can boost leaks cause bad knocking? I thought knocking was only from internal combustion, detonation, high pitch frequencies, etc..

Thanks guys.

08-04-2005	#7
Onefast99gsx Join Date: Sep 2004 Location: Wisconsin Posts: 1,411	Re: 3rd gear knock... I need expert advice PLEASE Wow! What an interesting lunch hour. Thankfully my lunches are 1hour. I decided to do about 2 pulls during lunch because it's less humid out. 1st pull..Shit! same thing knock! Starts at about 5700 in 3rd gear pulling about 2.5* of timing. Was also signs of .7* knock at the top of 2nd gear. So next and final pull i decide to richen it and basically go back to zero's on the dsmlink sliders. So i took off from a dead stop this time. Felt pretty good, 0-60mph felt great, get to about about the middle of 3rd gear and POOOOOOOF!! Car quit instantly. Not Good! I'm 3 miles from home, no phone with me. I get out look under the hood and it looks fine, no dripping of oil, Whew! In my past experience, that's from a hose blowing off. I couldn't find which one though. Must be behind the bumper cover. So again with experience i bury the fuel sliders to -40 and was able to limp it home at about 15mph, put..put..put. I found the hose that blew off. Had to be a bitch of a one to get at too. Dam, and i even have t-bolts on the dam thing. Not sure if this was on tight till the last moment and then she blew off or whether it was ongoing. Question: Can boost leaks cause bad knocking? I thought knocking was only from internal combustion, detonation, high pitch frequencies, etc.. Thanks guys.