Knocking a wheel back in to shape?
Knocking a wheel back in to shape?
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Discussion

Silverbullet767

Original Poster:

11,001 posts

228 months

Yesterday (19:38)
quotequote all


So after getting 2 cracked wheels due to potholes, getting them both repaired then one of them cracking in the repair, I opted to replace all my wheels with an aftermarket set.

They're only a couple of months old when I hit a pothole on a motorway slip, love these Scottish roads, and I've noticed this when I got home, does this look like a simple knock back with some percussive maintenance to anyone? Or is this a new wheel?

mk2 24v

720 posts

186 months

If you're feeling brave, you can try knocking it back to round...chances are it will crack though

E-bmw

12,082 posts

174 months

I have straightened worse successfully.

Warm the area thoroughly (not get it hot!) and gently tap out with a mallet (or hammer and lump of wood shaped for a straight bit of rim) just don't expect to do it quickly, aim to take many dozens of hits to do it & keep it warm while doing so.

littleredrooster

6,121 posts

218 months

My local tyre place did two of mine a couple of years ago using a little hydraulic device with a roller. £38 each IIRC and no marks or damage and they ended up perfectly round again.

It solved an out-of-balance issue I thought I had which I had been chasing for months!

Glosphil

4,771 posts

256 months

I've 'corrected' a slightly dented rim (similar to that in photo) on a relatively cheap after market wheel using a piece of shaped wood & a lump hammer. A cloth over end of wood stopped marks appearing on the wheel. Worked fine & used wheel for a further 4 years or so before selling.

Panamax

7,997 posts

56 months

E-bmw said:
I have straightened worse successfully. .... gently tap out with a mallet (or hammer and lump of wood shaped for a straight bit of rim) just don't expect to do it quickly, aim to take many dozens of hits to do it.
Yes, I've done the same although without any warming. Use a substantial block of wood and a 4lb lump hammer. The hits need to to be "solid" rather than "sharp". Once you can see the rim move it's moving enough. Don't increase the strength of your hits, just keep repeating the same and moving the block slightly to get the shape you want.