Hints,pics of this rust repair section on R4

[Briangrech]

Anyone has pics of a repair on this rear section.Thanks

 

[Briangrech]

Ok figured it out .Thanks anyway

 

[petak]

That is rear side of side crosmember?

I have some ACAD drawings for it.

Can send it to you earliest tomorrow during morning.
Give me email where to send it.

 

[malcolm]

I did it my own way - https://www.renault4.co.uk/gordini-outerrrsusp.htm The outer rear suspension mounting has a complicated construction. You can get repair sections where you cut the old one off and weld a new one onto the chassis rails.

The rear suspension is very sensitive to accurate hole positions. Inners for height and outers for fore-aft. After messing a couple of them up I made a jig. https://www.renault4.co.uk/suspension-jig.htm

 

[Briangrech]

I did it my own way - https://www.renault4.co.uk/gordini-outerrrsusp.htm The outer rear suspension mounting has a complicated construction. You can get repair sections where you cut the old one off and weld a new one onto the chassis rails.

The rear suspension is very sensitive to accurate hole positions. Inners for height and outers for fore-aft. After messing a couple of them up I made a jig. https://www.renault4.co.uk/suspension-jig.htm

Thanks for your help!

 

[Briangrech]

Thanks for your help!

Great job well played!

 

[Briangrech]

That is rear side of side crosmember?

I have some ACAD drawings for it.

Can send it to you earliest tomorrow during morning.
Give me email where to send it.

Thanks a lot have figured it out but no harm in having the design, will send you my email.Thanks a lot

 

[Briangrech]

I did it my own way - https://www.renault4.co.uk/gordini-outerrrsusp.htm The outer rear suspension mounting has a complicated construction. You can get repair sections where you cut the old one off and weld a new one onto the chassis rails.

The rear suspension is very sensitive to accurate hole positions. Inners for height and outers for fore-aft. After messing a couple of them up I made a jig. https://www.renault4.co.uk/suspension-

 

[petak]

Some pictures how i did it

 

[Briangrech]

Thanks a lot some quality work there!!

 

[petak]

Can make side crossmemebers and rear crossmembers from plain sheet of metal.
CAD drawing, laser cutting, bending and spot welding.
You get finished product that need to be welded to chassis and protected from rust.
More can be seen at second page of my topic about blue R4

What have I done! (R4 GTL)

And there he goes.........

www.renault4.co.uk

 

[rastiazul]

I did it my own way - https://www.renault4.co.uk/gordini-outerrrsusp.htm The outer rear suspension mounting has a complicated construction. You can get repair sections where you cut the old one off and weld a new one onto the chassis rails.

The rear suspension is very sensitive to accurate hole positions. Inners for height and outers for fore-aft. After messing a couple of them up I made a jig. https://www.renault4.co.uk/suspension-jig.htm

So normally rustproofing doesnt work satisfactorily ? I would like to know more about that

 

[JdeW]

So normally rustproofing doesnt work satisfactorily ? I would like to know more about that

When the rear corners are affected with rust then the front corners are as well. You need to replace it with repair sections and use a rear suspension jig for keeping the dimensions.
Here https://www.renault4.co.uk/forum/threads/r4-gtl-1985-restoration.8252/post-57269 you can see my chassis repairs.
As for rustproofing, I use the maritime products of Brantho Korrux and for the cavities a mix of Fluid film liquis A and AR, don't know what's available in your region.