So most of Saturday was working on the new cross beam that I have decided to add. There are a number of reasons for adding the cross beam.
- It tidies up the whole front end
- It adds strength
- The Certifier recommended that I have at least 4-5 cross beams
- I will use it to mount the radiator
So a number of compelling reasons. So I am now at the point where I can start adding back to the car. The new beam will be where the old mounts for the radiator were, before I cut them down. So I cut a tab out them back to allow the beam to rest on the remaining tab to give it added strength.
I removed the last of the brake lines and got ready to start work on the new beam.
So on to the new beam. It need to be curved so that once its welded into place I can still easily remove the bottom pulley and to allow clearance for the electric fan on the back of the radiator.
So I cut the length of box section 40mm over and then cut and measured the slots to allow me to bend the beam and get the right curve. I cut five slots, The middle on the center line and then moving out either side of that cut. I used a metal drop saw which gave nice clean straight cuts. After the cuts were made it was a simple task to bend the beam.
Once I got the bend I wanted I clamped it down and tacked it to allow for fitting.
After much cutting and grinding I got the beam in with close tolerances to allow for good welds.
Close up of the right hand side. You can see the notch at the rear where the tab from the old radiator mount is slotted in.
The mess on the concrete pad.
So that finished off a successful Saturday afternoon. Everything takes twice as long as you think. But I am much happier with how the front will look and having the radiator mounted off that beam will really tidy up the front end.
Sunday, a sunny but cold morning. Brrr it was cold. Got RattyT out and on the jack stands as I planned to tackle the current rear cross member. It was 8mm plate, but it wasn't welded in straight. It was about 30mm out of square. I also wanted to add strength to it as the inner seat belt mounts were to come off this.
The below shot gives you some idea how far out of square it was. From the look of it, it was added later on in the cars life, while the body was still on. With the body off you could see how out of square it was.
So the first big task was to cut it off. So I had to clammier under the car and try and us the angle grinder with a cutting blade and cut it off with out touching the chassis.
I was a prick of a job, but I finally got one side free. The other side was even worse to get free, but I finally did.
And there it is, So I squared up the ends and got it to the right shape to re-weld in.
I wanted to add some strength to the cross member so I used some 50mm angle iron and added that as an additional cross member, But it was primarily going to be used to mount the body.
The reason for the curve is the beam goes over the drive shaft. So it needed space to allow for suspension travel. I followed the exiting curve to cut a matching curve out of the angle iron. The plan is to have the two welded together which will give it greatly increase strength.
The ends and the chassis cleaned up of paint ready to tack in place. I used a 3M paint remover disc in the angle grinder. They work fantastic.
The new beam and the old one now square and tacked in place. The final welding will be done by the engineer.
Right now onto the other body mounts. I decided to give the body alot more support and also allow myself lots of flexibility on where I can mount not just the body but also other interior fixtures.
So I cleaned up the chassis rail and cut the 50mm angle iron into two lengths that run nearly the full length of where the body will sit. This increased the foot print on which the body will sit from 50mm to 100 each side, Plus all the other mounts that I have planned for the pedal box and on the passengers side.
Left side all tacked
Right side done and the start of mocking up where the pedal box mounts will go. The pedal box before was just bolted to the bottom of the plywood floor, Not very secure. So I have to make a proper steel frame / mount that it all bolts too.
Pedal box clamped in place to start on the mounts.
So all in all a successful weekends worth of work on the RattyT. Its nice to start putting things back on the poor girl.