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Kenworth W900A parking

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Uploaded by on Aug 7, 2007

short video of an 81 KW parking. The Holset turbo on the Cummins 400 is very noticeable. The clanking has something to do with the clutch fan and AC. Only does it with both those things engaged but not with either individually.

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Autos & Vehicles

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Uploader Comments (kblackav8or)

  • maby air compressor out of time

  • Noise related to the air conditioning and metal fan.

  • I am told if I install a plastic fan, this noise will stop. I also suspect a rotary AC compressor might help. Only happens when the AC is on.

  • Something between the AC compressor and my fan clutch. Both seem to be fine, working fine but makes that noise at idle. I have checked the fan and the compressor both. It might be the belt vibrating when both are engaged because that is the only time it does it.

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  • Needs more cowbell

  • Nice truck!!! I thought the noise was a dinner bell..lol.

  • It can also be the splines on the horton fan drive (if it runs a horton) they get noisey at idle as they chatter untill RPM,S pick up!!!

  • yep, sure sounds like the assy. drive. something about them 400's either in the big or small cam series.

  • Kevin, Probably ass. drive. Most all the old Cummins do that. I bet it quits when you air compressor kicks out!

  • wats the dinging noise?

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