OzVMX Forum

Clubroom => Tech Talk => Topic started by: cwanedwiver on August 11, 2018, 11:54:25 am

Title: Restoring Engine Cases
Post by: cwanedwiver on August 11, 2018, 11:54:25 am

Hello after a bit of advice on the best method of restoring engine cases, currently rebuilding 1975 MX 250b, bead blasted all cases and then painted but looks like crap, there are a lot of tiny scratch marks, corosion/porous marks and a few gouges, probably going to strip again, what would be a good product to fill most of the marks and blemishes, i thought of using bog but dont know how that will work as there not real deep but  stick out, cheers

Title: Re: Restoring Engine Cases
Post by: Hoony on August 11, 2018, 12:22:42 pm

are you in Melbourne?

RK Engineering (in Garfield) is a Guru on engine case repairs, specialises in big sections broken or even missing and re machining.
cosmetic work like this would be easy for him to weld and clean up.

Title: Re: Restoring Engine Cases
Post by: alexbrown64 on August 11, 2018, 12:32:25 pm

I have a cordless 80mm sander and heaps of orbital sanding discs.  Just use different grades to sand out the scratches and get them looking smooth. you can use the JB weld that is for aluminium if you have gouges.

Cheers,

Title: Re: Restoring Engine Cases
Post by: kdx Geoff on August 11, 2018, 12:44:58 pm

(https://i.imgur.com/5XyL1J6.jpg)
(https://i.imgur.com/7SjEHRC.jpg)
(https://i.imgur.com/caAgrfs.jpg)
(https://i.imgur.com/PvzSqpb.jpg)
(https://i.imgur.com/Ke01Q7j.jpg)

Pick something to fill the holes.

Primer and lots of wet sanding.