Moody 31 MkII mast compression post

[Luca Colombi]

Hello, I had a survey done today on a moody 31 MKII and the mast compression post is very heavily corroded at the base and requires replacement. Any advice based on experience ? Surveyor suggested a SS replacment. Any useful contact around Solent?

 

[Jonathan Vibert]

You might find that once cleaned up there is still plenty of material and replacement isn't required.
Remember rust can take up 10x the volume of the initial material
I don't have a before pic but mine looked like yours before.

After treatment:

 

[Luca Colombi]

You might find that once cleaned up there is still plenty of material and replacement isn't required.
Remember rust can take up 10x the volume of the initial material
I don't have a before pic but mine looked like yours before.

After treatment:
View attachment 38519

Thanks @Jonathan Vibert

I'll have a proper look when the mast is down for the standing rigging work. Did you use any specific anti rust / epoxy treatment before paiting it ?

 

[Jonathan Vibert]

I cleaned the rust off with a wire brush on a drill then treated with a rust 'converter' (from an auto shop) and finished with Hammerite.
Jonathan

 

[Luca Colombi]

Hi Jonathan,

Do you have the dimention of the post (lenght & diameter) by any chance ?

Also, while cleaning and paiting the post I assume you had the mast unstepped, but did you also put a temporary prop in place?

many thanks,
L

 

[Jonathan Vibert]

Hi Luca
I did mine in situ with the mast up so no need to prop.
I did this job on my M35 so the dimensions will be different.
Regards
Jonathan