Wheel wizard sought due to pothole

[Ed no-more-lemons]

After an initial inspection the 27" rear wheel appeared to have a massive flat spot on the rim and two parallel spokes had bowed right in to become loose.
Needing to get home I bumped along for a fair number of miles.
I have just released the tension in the next two spokes too the bowed pair.
Now I observe a high spot next to the old flat spot maybe 5mm and the old flat is where it should be.although a bit dented.
Quite serious I know, although I am ok with correcting lateral wobble and have read reams on spoke twisting, I am not sure what step to take next.
Tighted (quarter turns)the opposite side of the wheel from the hub or to correct the lateral wobble and to go from there?
The lateral correction should at least get me into work tomorrow, if indeed the rim is doomed anyway.
Any opinions welcomed.

 

[Ed no-more-lemons]

Steady as she goes or not!
having now removed all rubber and set the bike on blocks, I can see that the one nipple is virtually clear of the rim on the original flat spot and that the rim protrudes out slightly on either side of it.
Oddly the wheel now runs true'ish when viewed from the rim/front-on, having released the tensions to the 5 or 6 spokes closest to the impact/loose nipple.
Having a break and looking for inspiration, or failing that retensioning the whole wheel and hoping to see some slight improvement.
NB 4 cross pattern 36 spoke wheel Weinmann rim on Normandy hub. I have replaced several spokes over the last 18 months and thiink the old ones are very old.

 

[alicat]

I would replace the rim at the first opportunity and get it as true as poss by trial and error until that is possible.

Just my twopenn'orth.

 

[andrew_s]

A new wheel is the usual solution.

The rim is bent, and fiddling with spokes won't do anything if it's as bent as it sounds.
You could try removing the spokes in the vicinity of the flat spot (to give mallet swinging room), supporting the rim on bits of wood at the 2 bulges either side, and hitting the inside face of the rim at the flat spot with a mallet.

 

[gwhite]

A new wheel is the usual solution.

The rim is bent, and fiddling with spokes won't do anything if it's as bent as it sounds.
You could try removing the spokes in the vicinity of the flat spot (to give mallet swinging room), supporting the rim on bits of wood at the 2 bulges either side, and hitting the inside face of the rim at the flat spot with a mallet.

Using different spoke tensions to cure flat spots will inevitably give spoke breakage problems after a while. Better to invest in a new wheel as soon as possible and avoid further problems.

 

[Ed no-more-lemons]

Thank you all for the sound advice.
Its just that I have trouble binning anything that may have a use, much less a rim that is over 35 years old and is attached to my heritage bike.
I have tried pulling the affected section with all my weight while standing on the crossbar, no banana.
I have also toyed with the idea of using some sort of expanding clamp against a curved mould, or in frustation a mallet, sooner or later I will have to try something like this as another 40 miles has only caused further irritaion and fitting a single speed wheel (which I have laying around) just seems wrong.
The council will hear about this one!

 

[andrew_s]

I bet it wasn't as massive a flat spot as this one of Mick F's. Note how the high spot next to the flat spot doesn't go under the brake.