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Corrosion on rear door guiderails
Any one tested refurbishing the upper and lower guide rails on the multispace MK2? On my car they are getting really corroded and the top film/paint for the wheels is gone. The doors still works but they don't sound nice closing. Any tip regarding what paint to use after grinding of the corrosion?
All you'll need is a wire brush and some wet or dry paper. A grinding disc
sounds like overkill to me! The best thing to refinish the rails may be powder coating.
I think it may also be prudent to take a look at the condition of the wheels.
I've never heard of anyone here having this problem.
The Older I get the Better I Was!  Cool
Mine are like this - the coating has peeled and if not cleaned frequently they are noisy to operate.

I haven't looked into any remedial work yet, just much washing and much WD40
Are they a die cast item, or pressed steel?

If they're cast, then the corrosion is pretty much impossible to banish without a level of work which would be uneconomical. You could stall the deterioration with thorough prepping and one of the "engineered" coatings (eg, Rust Bullet, POR-15, Epoxy-Mastic etc etc) that bonds decently to a clean substrate. Coatings like Hammerite are not even close to viable.

A pressed steel track could be readily blasted and zinc passivated, then etch primed/painted if desired.

Cheers, Adam.
[-] The following 1 user says Thank You to addo for this post:
  • ron
Having just replaced a rail, I'd say that the problem is probably caused by the wheel on the door getting seized and then dragging which destroys the coating on the track.
Where to find spares for rails and/ or wheels?
(01-11-2015, 08:02 PM)ojelun Wrote:  Where to find spares for rails and/ or wheels?

Breakers and dealers can help you.

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