Bought A gt4 (st185) today and got a problem *help*

[dvmv_kim]

i bought a 1990 celica gt4 and when i take my foot off the accelerator it makes a big knocking sound or a ding sound dont know what you call it but could anyone tell me what that is and how can i fix it?

[Pelo]

Is it just a big "KLONK donk donk" sort of sound?
Possibly the front or rear engine mount.
If it is they will need replacing so go throw your wallet at Mr Toyota...

[Dell'Orto]

Or diff mount, that'd quite likely make a clonking noise too.

[flygt4]

rear diff mount if its bucking like a horse

[Zak]

Thats the diff mount, a genuine one is about $400 and will just break again, better off getting a nolathane one made up, probably cheaper too.

[dvmv_kim]

dam! yeah it is a big clonk or donk sound comming from the back, anyone here in wellington could check if it is that? man this sucks just got the car today and already a problem

[Malcolm]

yeah it's the diff mount. Pretty easy to replace, call up Autolign in Auckland, ask if you can send it to them to be filled with nolathane, or if they know anyone down there that does it. It'll cost about $100.

[groupagt4]

my gt4 is doing the same theres about a good cm of movement in the mount if not more.just get under your car and try to move the dif round a bit

[dvmv_kim]

i live in wellington is there anyone in wellington could do it cuase im sure Toyota shop would charge me heaps

[Leon]

Try Mossrax on Belfast Street (just behind Basin Reserve MacDonands)

They made me up nolathane engine mounts, so I am sure they can make a diff mount up. They are suspension people after all.

[Prymal]

Or just jump on 412'a group buy and get one from C-one !

C-one stuff = very good quality

Mine was a custom nolethane one made by autolign in auckland - i believe theny may have them on shelf

[dvmv_kim]

sorry im quite lost here so what do i have to buy? what parts do i need to buy to stop that sound?

[RunningRich]

Before buying parts climb under the rear of the car (on jackstands, not on a jack).

Find the rear diff and on the rear face of it there is a mounting block, aound 5 inches by 5 inches. It has two bolts in the centre, one above the other.

You may see that the centre part (with bolts) is torn free of the surrounding rubber, allowing the diff to rock forward and aft, making the clonking noise. If that is not the issue then you have other problems.

It can be replaced without removing the diff. From meory I undo the bolts holding the diff to subframe and the cross member, allowing the diff to slide forward, gives lots of room.

I think I've done this 3 times on two different cars.

If you get it done in urethane get it done solid without holes, otherwise it tears again.

[Simon K]

i live in wellington is there anyone in wellington could do it cuase im sure Toyota shop would charge me heaps

Autolign in 12 Petone cres(I think), Petone(off Gear st). If the other guys are suggesting Autolign in Auckland the Wellington branch may be able to help. They stock a wide range of Nolathane bits and pieces.