Ditchdiggerjcf Posted May 30, 2020 Share Posted May 30, 2020 Does a properly working tip turbine make any noise? This one sounds like it has a boost leak, but it runs fine. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/ Share on other sites More sharing options...
Ditchdiggerjcf Posted May 30, 2020 Author Share Posted May 30, 2020 And what is the difference between a 283 and a 285? Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452329 Share on other sites More sharing options...
Mark T Posted May 30, 2020 Share Posted May 30, 2020 (lol) I think it's actually a boost leak that makes the tip fan work. well kinda anyway Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452330 Share on other sites More sharing options...
Ditchdiggerjcf Posted May 30, 2020 Author Share Posted May 30, 2020 I know, I'm just wondering if it makes a racket when it does it's thing. I hear air hissing when going down the highway. The hissing is different than the turbo whistling. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452331 Share on other sites More sharing options...
alex g Posted May 30, 2020 Share Posted May 30, 2020 Sounds right to me. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452333 Share on other sites More sharing options...
JoeH Posted May 31, 2020 Share Posted May 31, 2020 My 283 whistles from the turbo, but I'm not sure the tip turbine makes any noise. Tip turbine is basically powered by wastegated turbo pressure. What conditions cause the air hiss? Under full load? Partial load? Certain rpms? Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452340 Share on other sites More sharing options...
Ditchdiggerjcf Posted May 31, 2020 Author Share Posted May 31, 2020 Tach wasn't working when I brought it home, but the noise gets prgressively worse until you fall off the turbo at around 2k. It is at it's worst around 55 mph which I figure is about 1700-1800 rpm. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452345 Share on other sites More sharing options...
terry Posted May 31, 2020 Share Posted May 31, 2020 7 hours ago, Ditchdiggerjcf said: Tach wasn't working when I brought it home, but the noise gets prgressively worse until you fall off the turbo at around 2k. It is at it's worst around 55 mph which I figure is about 1700-1800 rpm. Sounds like a boost leak. terry Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452356 Share on other sites More sharing options...
AITG Posted June 3, 2020 Share Posted June 3, 2020 I used to have about six U models with tip turbines. Occasionally the silicone gasket around the intercooler element would fail and make a vacuum cleaner-like noise. Pulling the intercooler and replacing the gasket usually fixed it. The corners of the gasket are thin - I was never able to get a used one to seal properly. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452585 Share on other sites More sharing options...
Ditchdiggerjcf Posted June 3, 2020 Author Share Posted June 3, 2020 Did they run different when the gasket was bad? I didn't notice much difference on this one but the farther I went the worse it got. Quote Link to comment https://www.bigmacktrucks.com/topic/62727-tip-turbine-sound/#findComment-452590 Share on other sites More sharing options...
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