1clean00 Posted October 12, 2015 Report Share Posted October 12, 2015 so did the turbo have play in it? or are you assuming it's no good? Link to comment Share on other sites More sharing options...
craywm Posted October 12, 2015 Author Report Share Posted October 12, 2015 The Turbo is freshly rebuild with Mitsu parts. I have 300 miles on it now. There is not play in it at all. I was very surprised how much play it had in all directions prior to the rebuild. So, no I'm not assuming the turbo is no good. I'm not sure why it would be producing excess noise. I think it could be bad bearing surfaces or something clogging my oil supply. But, given it hasn't failed yet, it must be getting oil. I'm not really sure whats wrong with it or why it would be producing excessive noise. Link to comment Share on other sites More sharing options...
1clean00 Posted October 12, 2015 Report Share Posted October 12, 2015 Looking at your intake pipe, could very well be the crimped end. Kind of like letting air out of a balloon but pinching it shut a little, you get some whine or whistle, vs. letting it all blow freely. Obviously this is working to suck air into the turbo in your case. Maybe just pickup a junkyard air intake tube to replace it. Or upgrade and don't look back http://www.snabb.us/Performance-Fresh-Air-Pipe-98-SVC70-_p_10.html Link to comment Share on other sites More sharing options...
craywm Posted October 12, 2015 Author Report Share Posted October 12, 2015 Wow that comes in pretty close to the factory tube in price. I don't understand how this works though. Does it really improve performance significantly? I did do a PCV fix last year that removed my entire brittle breather tube completely.. I wonder if that would be compatible for this kit. 21% increased flow is some large numbers... Since to turbo induces pressure, I wonder if increasing the flow rate would really have a large affect.. especially with all the restrictions downstream as well. So, does it really help? Link to comment Share on other sites More sharing options...
1clean00 Posted October 12, 2015 Report Share Posted October 12, 2015 I had one on my 99R, have one on my S60 T5, and have one on my V40 T4. It seems to provide better response. Not a huge power adder, but i think it removes some restriction, plus it looks good under the hood. And with the factory tubing coming in over $100, for the extra coin you can pickup some performance and it'll be serviceable much longer than all plastic. Link to comment Share on other sites More sharing options...
craywm Posted October 13, 2015 Author Report Share Posted October 13, 2015 I was able to use my mechanics stethiscope and rev the engine in the garage to hear the whine from the turbo. I could not hear it on the compressor body, but once I put the tip of the scope on the exhaust manifold, I could hear it clear as day. I'm thinking the exhaust side bearing in my CHRA is bad. Another option I am considering is that the CHRA/compressor body assembly is not fully inserted into the exhaust housing side. There is a heat shield that could rotate with the turbine wheel if it were not fully secured. I had a heck of a hard time getting the turbo the fit back into the exaust side housing. I thought it was fully seated but I guess its possible its not. I still plan to order a new CHRA (after evaluating a little more). I was wondering if anyone knew if my Exhaust side turbine housing could cause the turbo CHRA to go bad? I don't want to get a new CHRA and have it fail in 70 miles too. Does anyone know what could cause a turbo to go bad that quickly? Besides low lubrication and cooling (which I'm fairly certain is fine)? Link to comment Share on other sites More sharing options...
1clean00 Posted October 15, 2015 Report Share Posted October 15, 2015 If when you first re-installed it you didn't prime it with oil first it could have started dry and toasted the bearings before it ever got oil. pull the ignition fuse. crank it at least FIVE times for 5 seconds. don't worry, you won't break anything. finally, put the ignition fuse back in and start the car. let idle for at least 5 minutes WITHOUT touching the acceleratorDO NOT start the car without priming the turbo. even for a split second, the exhaust gases can spin the turbo up fast enough to be harmful without proper lubrication Link to comment Share on other sites More sharing options...
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