Class 158874 at Shildon sounding like a fuse

[JasonAtShildon]

Can anyone please explain why this class 158 sounded like it was going to explode

The video linked below is from my channel in YouTube and shows the sound I am referring to, I recorded this exact video

 

[fgwrich]

Can’t say I can hear anything unusual in that, it just sounds like a either a control wire is a little lose causing one car to power down before raising the revs up or the WSP has kicked in temporarily cutting power to one car. Both cars are powering and can be heard as they disappear off into the distance.

 

[hexagon789]

Just sounds like a bit of wheelspin with the WSP cutting power and then restoring it, hence the sudden cut and then revving up of the engine.

 

[JasonAtShildon]

Can’t say I can hear anything unusual in that, it just sounds like a either a control wire is a little lose causing one car to power down before raising the revs up or the WSP has kicked in temporarily cutting power to one car. Both cars are powering and can be heard as they disappear off into the distance.

oh ok, I rarely see 158s here so I was just curious

== Doublepost prevention - post automatically merged: Today at 11:44 ==

Just sounds like a bit of wheelspin with the WSP cutting power and then restoring it, hence the sudden cut and then revving up of the engine.

Ok thanks

 

[hexagon789]

oh ok, I rarely see 158s here so I was just curious

== Doublepost prevention - post automatically merged: Today at 11:44 ==


Ok thanks

If you've never experienced it before, I can completely understand it sounding a bit odd.

Most Sprinters sound exactly like this when they slip a bit under power. Newer diesel units are a bit more finessed, so the change in engine sound isn't as noticeable.

 

[Geeves]

The sound right at the end is the moisture drain for the air system. A mod a believe fitted in the last few years.

 

[JasonAtShildon]

If you've never experienced it before, I can completely understand it sounding a bit odd.

Most Sprinters sound exactly like this when they slip a bit under power. Newer diesel units are a bit more finessed, so the change in engine sound isn't as noticeable.

Yeah I only see 156s around here mostly now I Understand thanks!