crank case alloy composition

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gregh
Cucciolo - the Lil Pup
Posts: 1
Joined: Mon Dec 18, 2006 12:41 pm

crank case alloy composition

Post by gregh »

I have an '82 900S2, it has a crack in the crank case that I'm about to get welded, has anyone any idea as to the composition of the alloy in these (silicon,magnesium content)?
I'd like to help the engine shop out in there selection of tig wire, if I can.

thanks
lb980316
Cucciolo - the Lil Pup
Posts: 2
Joined: Fri Sep 17, 2004 1:03 am
Location: belgie

Post by lb980316 »

Hllo,
You can use ALMG5 for welding the crank case.
Cheers,
MarcVSt
seddy
Mariana
Posts: 48
Joined: Wed Mar 31, 2004 11:10 am
Location: Columbus OH (please save me)

Post by seddy »

when I investigated getting my cases repaired I was told the Aluminum was 6061
My motorcycle WAS older than my girlfriend.
sbelcher
Cucciolo - the Lil Pup
Posts: 14
Joined: Wed Jul 18, 2007 11:52 am

Post by sbelcher »

just a note about the advise given to gregh. I work with aluminium and the 6061 grade he was advised is a grade used for "wrought" products. i.e. extrusions or forgings. Casting grades normally have silicon added to lower the viscosity of the alloy when molten which allows them to flow into a mould more easily. this additive is absent in 6061....

For future reference, I am sure I have the information somewhere so will add it at a later date

Steve
Interested in TT / pantah parts and information
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