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Sierra Gearbox mounting
Simon - 24/5/02 at 10:48 AM

Hi all,

Just doing some renovation work on donor parts, and came to the gearbox mounting. Obviously this is far too wide for the transmission tunnel.

What are others doing/done for the gearbox mounting - fabricating from scratch, mofifying original or something else?

Thanks

Simon


StuartA - 24/5/02 at 11:10 AM

Good question... we have a Sierra 'box and fitting it is next on our 'to do' list (well nearly... gotta sort that Zetec lump out first), so I would be interested in seeing what everyone has done about this.


theconrodkid - 24/5/02 at 04:01 PM

in the bottom you have a threaded hole,spookily enough a capri/cortina round engine mount fits this hole,just a bit of 1/4
plate across the bottom rails and job done.


Simon - 24/5/02 at 07:35 PM

Conrod

Thanks. Nice and simple - here was me looking forward to doing a nice complicated cut and shut job on the original mounting

Thanks again

Simon


stephen_gusterson - 24/5/02 at 09:27 PM

I used the existing plate with a little mods.

Drill out the rivets that hold the rubber to the plate. Use bolts instead.

Then, take the plate and cut the top surface so that its the same profile as the tunnel rails.

Then, I cut 'notches' in the front and rear fold over sides, so that it effectively sits half way over the sides of the rhs rails. You can then weld the braket to the top and half of one side of the rail in each corner.

I hope that makes some kinda sense.....



atb

steve


David Jenkins - 30/5/02 at 08:03 AM

I did something very similar to Steve...

Take the original and cut away the rivets (I ground the heads off). Throw away the big bit.

I welded a sub-frame in the bottom of the transmission tunnel that took the mount, made up of 4 pieces of angle.

The reduced mounting plate fitted in nicely, with just a little filing (as Steve suggested).

David


stephen_gusterson - 30/5/02 at 08:49 AM

quote:
I did something very similar to Steve...

Take the original and cut away the rivets (I ground the heads off). Throw away the big bit.

I welded a sub-frame in the bottom of the transmission tunnel that took the mount, made up of 4 pieces of angle.

The reduced mounting plate fitted in nicely, with just a little filing (as Steve suggested).

David






I didnt throw away the big bit. I used virtually all the mount.

When you get it off the car, its kinda a big diamond(ish) shaped plate. Detach it from the 'box' by taking out the strange bolt and watsit metal peice. Get the rubber bit removed as David says.

Then, i cut the ends off the 'diamond' bracket, to suit tranny tunnel width. On my car, I was able to set the mount down a bit over the chasis rails by making 'cut outs' in the sides as they touched the rails, allowing the mount to be both on top of the rails, and sinking about 15mm down onto them. You can weld to top and side of braket that way.

edition 1 of 'the book' shows RHS being used to space the braket up if you need to.

I just used the modified bracket, nothing else.

Atb

Steve


David Jenkins - 30/5/02 at 10:03 AM

Ah... I misunderstood.

I did mine my way because I wanted to mount the gearbox end as low as possible. However, I don't reckon that there's much in it either way.

David