Rustproofing rear quarters

[toyman317]

I have some cutting and patching to do on both my cruisers. I keep thinking I need to read up on this process as much as possible before I start so I don't screw it up. Sounds like I just need to get er done as they say. Just seems like a scary thing to do to a vehicle. It is more scary thinking about what is happening if I don't do it. So what are some of the dos and don'ts to the process?

 

[Radd Cruisers]

What I have encountered is this................


When trying to stop rust on a older 60 series which is starting to show rust in spots where spot welding and two pieces of sanwiched metal are is not easy.


Firstly you will clean and repair the rusted area, second you could epoxy prim the outer surface.


This will in the end do nothing, the real problem is in between the two pieces of sanwiched metal, moisture is in thier and doing its best to destroy thos wheel wells.


You have to get those two piece of metal apart and clean and epoxy them afterwords.


Rob

 

[batman]

I have some cutting and patching to do on both my cruisers. I keep thinking I need to read up on this process as much as possible before I start so I don't screw it up. Sounds like I just need to get er done as they say. Just seems like a scary thing to do to a vehicle. It is more scary thinking about what is happening if I don't do it. So what are some of the dos and don'ts to the process?

Becareful and remove wires and anything else that might catch fire, be aware of the gas vent and fill tubs inside pass side fender

here a link to my Thread about my progress and how i did things

https://forum.ih8mud.com/showthread.php?t=57073

 

[toyman317]

Yes, the two pieces sandwiched together is the whole point of this thread. For example, after you cut out the bad pieces on the outside, is it possible to seal the inside of the sandwiched area before welding on the new outside pieces? Or do you weld the outside pieces first and then unsandwich everything by drilling out spotwelds, rustproof the inside and then reweld spots. Wouldn't the heat from welding have an effect on the rustproofing/paint material used on the inside?

 

[batman]

Yes, the two pieces sandwiched together is the whole point of this thread. For example, after you cut out the bad pieces on the outside, is it possible to seal the inside of the sandwiched area before welding on the new outside pieces? Or do you weld the outside pieces first and then unsandwich everything by drilling out spotwelds, rustproof the inside and then reweld spots. Wouldn't the heat from welding have an effect on the rustproofing/paint material used on the inside?

I didnt sandwich the two together but I put the two ends together. If I were to sandwich the two and weld I would only spot weld then use bondo to fill in the gaps. you can not weld over paint, the welding would burn the paint, and it would be hard to rust proff the two if weld like you were saying.

 

[Radd Cruisers]

You can do the job either way, my personal way of doing the repair is the none sanwiched way.

Make the outer panel and remove the lip all together and reweld in the new panel, but weld edges not overlap,

After welding you want to epoxy prime, seam seal the inner parts, finish and paint the outer panel. Make sure to get inside the back of the wheel well and epoxy prime then rust proof it.

Sorry as I may of read through and missed the concept of this thread.

Yes, the two pieces sandwiched together is the whole point of this thread. For example, after you cut out the bad pieces on the outside, is it possible to seal the inside of the sandwiched area before welding on the new outside pieces? Or do you weld the outside pieces first and then unsandwich everything by drilling out spotwelds, rustproof the inside and then reweld spots. Wouldn't the heat from welding have an effect on the rustproofing/paint material used on the inside?

 

[SAS]

I have some cutting and patching to do on both my cruisers. I keep thinking I need to read up on this process as much as possible before I start so I don't screw it up. Sounds like I just need to get er done as they say. Just seems like a scary thing to do to a vehicle. It is more scary thinking about what is happening if I don't do it. So what are some of the dos and don'ts to the process?

I worked on the Pink 60 today...here' is what I accomplished.

As said above, beware of the wires within the QP above the wheel well, and also beware the proximity of fuel lines on the passenger side.

I used an angle grinder and thin cut-off wheel. I planned to use the Sawz-all, but started to chatter alot and I was afraid of distorting the shape of the good metal (why...I have no idea!)

I cut a cardboard template to match the shape, but that is one dimensional, so I allowed one inch for the curvature of the metal and one inch for the lip under the wheelwell.

I felt like it was going so slow today that I may not even bother with trying to shape it to match the original; other than the wheelwell. But then, its a project, and there really isn't a timeline, so I'll give it a go.

 

[SAS]

Forgot to mention, but you can see it in the photos, that I cut the bottom of the quarter off like TheFerg did on his Blue Box. That pocket was holding about 2# of dirt and crud on each side!

 

[batman]

That looks just like mine. I didn't care about the original shape. I just cut and welded. It does take a little time but it's worth it. Make sure you remove all rust that you can see. I want to see more when you can. Good job