G day all, just thought I would ask you guys out there with 6spd ''T56'''s about roll over noise. Ill explain.

With the car iddling and the box in neutral and foot off the clutch there is what im told is ''ROLL OVER NOISE''( gear meshing type of noise ) it is more prevelent when the air con is on( revs drop a touch). My car idles at about 800rpm and as soon as the revs get to about 900-950rpm the noise dissapears. I am told by the x-sperts that it is quite normal.

Do any of you guys have this noise and what rpm do your cars idle on ?

When I get the custom tune later in jan I will ask the tuner to lift the idle revs to approx 950rpm if that's possible to hopefully get rid of this noise.

I still think Tremec could of designed this box to get rid of roll over noise.

Any opinions on this subject would be greatly appreciated.

Dave G

no, when in neutral with foot off the clutch that's throw out bearing noise, if you wanna get rid of it then dont let the clutch out. rollover noise is the gear noise when you take off with low revs, rev a bit more to stop it.

Mine does it too. Got the idle noise with a/c on mainly. idles bout 750-800. plus the rattle when ya take off. gotta lift the revs a fair bit on mine to get ride of the takeoff rattle. If ya wanna know more about it give Mal Wood a call. I believe the idle rattle is rollover noise.

Mine does it too...

Apparently its the sloppy tolerances ford have....

no, when in neutral with foot off the clutch that's throw out bearing noise, if you wanna get rid of it then dont let the clutch out. rollover noise is the gear noise when you take off with low revs, rev a bit more to stop it.

Mines the same more when its cold and settle downs when it warms up.Its the cluster gear in the box,not the throw out bearing as it should be noiser with the clutch in,as that's when its under load.Cheers Nick

Mine does it too...

Apparently its the sloppy tolerances ford have....

How do you work that out?

Ford don't make the gearbox.

If you want to try and quieten it down, try a synthetic oil in the gearbox.

Other than that, as many have already said, it is normal.

If you don't like it then buy an auto.

NCO... No Cost Option.

It has something to do with the harmonics of the engine and ford, to try and fix it decided to wack an extra litre of oil in the box to try and quiet it down.

Yep phantmxr6, I have been told that it is normal and yes I have good quality synthetic oil in the box. I was just realy interested in peoples experiance and how many of the boxes actualy rattle like mine. I have been in other ''T''s that dont suffer from this rattle so I cant see how it can be ''NORMAL'' some do and some dont. Ive got used to it now and it will be a non issue when the cars idle is raised. Just a topic of conversation/interest for this forum.

DG

this topic has been raised before several times (by myself aswell) Have a read through the Mal Wood section on this forum it will shred some more light on it for you.

Fair enough. My car has the T6060 gearbox and makes the same noise the T56 does.

Part and parcel of the design I would say.