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Knocking hdi - Printable Version

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Knocking hdi - mad306man - 07-04-2013

My hdi has just developed a nasty knocking noise, sounds bottom end to me.

Opinions please, cheers

http://static.photobucket.com/player.swf?file=http://vidmg.photobucket.com/albums/0803/n_yemm1/20130407_173714.mp4


RE: Knocking hdi - C2K - 07-04-2013

Video doesn't play.

Look at your crank pulley with the engine running.


Re: Knocking hdi - mad306man - 07-04-2013

[Image: 20130407_173714.mp4]


RE: Knocking hdi - C2K - 07-04-2013

http://vidmg.photobucket.com/albums/0803/n_yemm1/20130407_173714.mp4 worked

As before, look at your crank pulley through the wheelarch with the liner off, i bet its flapping about.


RE: Knocking hdi - cully - 07-04-2013

bottom pulley or autotensioner gets my vote
take the aux belt off and runn the car again


Re: Knocking hdi - mad306man - 07-04-2013

Nice one for fixing the vid, I must be an idiot.

Are you expecting the pulley to have worked loose?
Can it be tightened?


RE: Knocking hdi - cully - 07-04-2013

the pulley breaks up as its in two pieces
it needs replacing as if it throws the aux belt it is not uncomon for it to take the cam belt off wrecking the engine


RE: Knocking hdi - C2K - 07-04-2013

The rubber damper inbetween the inner and outer fails, causing it to flap about. It can cause lots of damage if it grenades so try to get a new one asap. ECP should sort you out.

It should be obviously concentric when healthy, eccentric is bad.


Re: Knocking hdi - mad306man - 07-04-2013

Cheers guys.

Gonna have a closer look shortly when the kids are in bed.

I did glance at the bottom pulley and think hmm, that looks a tad wobbly but thought little of it as I was more worried a rod wad going to fire out of the block Dodgy

Is the pulley easy to change?


RE: Knocking hdi - C2K - 07-04-2013

Not difficult. Detension belt and buzz the bolt off. If you don't have a gun, get a friend to stand on the brakes with the car in 5th and crack the bolt.


Re: Knocking hdi - mad306man - 07-04-2013

Yeah, that thing is flapping around all over the place.

I can feel the inner rubber to metal bond moving with my hand Confused

Gonna have to chance it to work tomorrow, but can drive another car the rest of the week.

Sounds pretty straight forward to do, so will have a crack at the weekend.

To de-tension, is it just a matter of moving a tensioner pulley using a socket?


RE: Knocking hdi - Poodle - 08-04-2013

Yes, you can lock it off with an allen key or similar.


Re: Knocking hdi - mad306man - 08-04-2013

Nice one.

Can anyone share the torque setting for the pulley bolt please?


Re: Knocking hdi - mad306man - 08-04-2013

All done now, cheers all


RE: Knocking hdi - C2K - 08-04-2013

Sweet, noise subsided one presumes ?


Re: Knocking hdi - mad306man - 08-04-2013

Yes mate, all quiet now Big Grin

It's nice to now know what to listen for in the future now. Its much quieter than when I bought it so must have already been going.

This is what came off

[Image: 20130408_223105.jpg]