Help identifying this noise please!?

[r5gtt]

I don't know how many replace the mounting bolts but I've never replaced them and I've done many timing belt jobs.
Only when at work we have to replace the bolts and that's for recalls or warranty work. If the customer doesn't request replacement when they come in themselves and ask for a replacement belt kit, we will reuse the old bolts but do recommend renewal.

So if your engine rocks like dazzas video, your gearbox mount is failed?

ive had the engine reved in park mode before and watched the engine and it rocks back and forth maybe an inch. I'll have to take the cover off and rock it like dazza did to see. Is he just rocking the whole engine?

99% of the time the mount is badly worn as I had this with mine when purchasing the car but it was okay when I went for the test drive. Only when I paid the deposit and then went for collection is when I found the car to be jerking as one of the traders workers was driving it back from some where!!! I think the baaskeeet was hammering it as it felt jerky on the was home which is why I assumed ds box fault. Later found mount was knackered.

Hope this helps along with the video dazza kindly put up.

M

[dazza]

Thanks for the video dazza, the engine isn't meant to move like that!!! was it easy to move with less force?.
This should be a sticky for gearbox mount failure

Thanks

M

I had to use some force it does not move easy.

Did you renew the engine mount bolts when you done the cam belt Dazza?

Yes mate i replaced the engine mount bolts.

[dazza]

@rich83 did you replace your engine mount?

[rich83]

No mate. Apparently they are ok.

[r5gtt]

I don't like the movement as mine is solid and doesn't move unless I put it in gear and gas it. Maybe because it's new.

M

[dazza]

No mate. Apparently they are ok.

I will leave it then. If it is the DMF could this cause other problems or will it just get noisier/rougher then fail?

[dazza]

This vibration/noise is not sitting well with my OCD. Is there any way to know 100% if its the DMF? Seen a vid where they take the starter motor off and check for play.. see video below.

Can i DIY the DMF? 

[r5gtt]

Have a read of this.

http://pmmonline.co.uk/technical/dmf-failure-diagnosis-tips

[dazza]

Have a read of this.

http://pmmonline.co.uk/technical/dmf-failure-diagnosis-tips

Thanks mate i may take the starter motor off and see how much movement is there.

[r5gtt]

Have a read of this.

http://pmmonline.co.uk/technical/dmf-failure-diagnosis-tips

Thanks mate i may take the starter motor off and see how much movement is there.

Lets hope it's not that as it'll cost a small fortune.

[dazza]

Lets hope it's not that as it'll cost a small fortune.

If its not that i'm stumped as it only does it in D R S with foot on the brake.

I need a new clutch in the beater so i may do that first and build up some confidence.

[dazza]

Muppet question what gear should car be in to check DMF via the starter motor?

[r5gtt]

Would have thought in park tbh as you'd get play either in park or drive.

Was talking with a colleague at work today and he says it could be either the clutch packs or the dmf but not 100% as various other things could play a part in this such as fuelling carbon in mani.

What happens whilst in drive or are you at stand still in those gears with foot on the pedal and the cars juddering?.

If it judders on take off too, it could be the above mentioned too.

I've just watched you're video again and listened closely on rocking the engine and I can hear a knocking sound when you rock the engine which doesn't sound right to me.

[dazza]

I tried it in park and could not move it. Didn't want to use to much force with a screwdriver.

Its ok when driving. Only happens when foot is on the brake in D,R & S. Or coasting to a stop with foot lightly on the brake. Its as if the dash is rattling/vibrating.

[r5gtt]

Did you also try it in gears with engine switched off of course?.

That to me imho sounds like a gearbox mounting worn out as my car used to get a vibration in d r?.