Welding Honda CR80 Cases

[Mr Aussie]

Does anyone know what honda made the crankcases out of
Are they a Standard Alloy or a Magnesium Alloy
I have a small crack i want to seal up and dont want to weld it if it is Magnesium

[caps 999]

center cases are alloy and most clutch covers on the 80 are alloy to i think its only the aircooled 80 that had a mag clutch cover

[GMC]

I haven't known of any production center cases that were Mag.

[LWC82PE]

And if any outer cases are magnesium, they often have it cast in 'magnesium' so you know. CR80 will be Alumimnium for sure.

[Mr Aussie]

Thanks Guys
I will see if i can blow a hole in it with the TIG

[Slakewell]

Make sure you put a piece of Stainless behind the hole to help.

[caps 999]

not all cases are marked magneisum leith the cr480 clutch cover its mag and not marked

[Mr Aussie]

Make sure you put a piece of Stainless behind the hole to help.

Yea these cases are quite thin compared to what i have welded in the past

[Mr Aussie]

Well i got the TIG warmed up today
Prepared the case
Pre-heated it
and welded it
Came up a treat
After grinding it back and finishing it off with a linisher and some emery tape
you would never know
It was a piece of cake