Noisy idler pulley

[dan filipi]

I posted this in the Video References forum for future linking but thought I'd post here also for discussion because those forums are locked.

[video]https://youtu.be/iTayJiLqDEY[/video]

 

[zman]

Has a distinctive sound, Is it heard the same with the covers on too?

 

[dan filipi]

zman » Sat Jun 21, 2014 6:29 pm[/url]":21szgmxd]
Has a distinctive sound, Is it heard the same with the covers on too?

Very close though more a 'howling' is heard.

 

[Steve83]

Those bearings are usually ignored when changing the belts. It's a good idea to give 'em a spin, and turn 'em by hand. They should feel smooth and spin silently.

 

[dan filipi]

This idler spun smooth when I changed the belts.

It got real noisy on the ride yesterday:

( camera has to be close to pick it up, can hear well while sitting on the seat)

[video]https://youtu.be/mxDNIcxg1OY[/video]

 

[zman]

Just to be sure is that sound like spinning a whip through the air or is it the sewing machine sound..Or both?

 

[mcgovern61]

Whoa Dan! :shock: That surely sounds like the bearing is dry inside it!

 

[dan filipi]

zman » Sun Jun 22, 2014 3:08 pm[/url]":1sggcdz2]
Just to be sure is that sound like spinning a whip through the air or is it the sewing machine sound..Or both?

Seems both noises.

Odd thing, tried fitting 2 idlers from an 1100 but neither fit properly.
They both sit right against the engine housing at the top part and don't have any play left to allow any proper adjustment, too tight on the belt.
Numbers on the idler are the same, I must be missing something.

 

[dan filipi]

Well I'm not missing anything, the 1100 pulley's are positioned differently on the back plate, sheesh thanks Honda.

1200 pulley mounted

1200 pulley mounted

• dan filipi
• Jun 22, 2014

1100 pulley mounted

1100 pulley mounted

• dan filipi
• Jun 22, 2014

Back plate sits against the engine case where marked in red

Can see the difference in pulley position on the back plate

1200 pulley on the bottom, 1100 pulley on the top

• dan filipi
• Jun 22, 2014

See the difference in pulley position?

Going to grind it out to fit

Grind here

• dan filipi
• Jun 22, 2014

Marked in red, grind top part and make the elongated hole larger.

 

[dan filipi]

Ground out and done.

There isn't as much belt adjustment slop as there was but it's enough and that's all that matters.