gs 550 axle nut torque?

[cornishgs]

Bought a nos rear axle for my gs550E 1979 it arrived and is same as old one but hollow. 17mm diameter

I have not seen a hollow one before. its part no 64711-38210.any body know what I should torque rear axle nut up to? cant find any figures anywhere.

[mmattockx]

http://zeus.mtsac.edu/~cliff/storage/gs/GS550_77-82_all.pdf

Page 146 gives axle nut torque as 36-58 ft-lb.


Mark

[cornishgs]

thanks for getting back so quick. 45ft lbs should do it

I couldn't open link, page 146 of what ?? is that the Suzuki service book? I only have a Haynes.

[mmattockx]

thanks for getting back so quick. 45ft lbs should do it

I couldn't open link, page 146 of what ?? is that the Suzuki service book? I only have a Haynes.

Yes, it is a pdf of the GS550 service manual. It opens fine for me, try getting to it direct from BassCliff's site: http://members.dslextreme.com/users/bikecliff/


Mark

[tkent02]

Make sure it fits,and find out what it's for. That 64711-38210 is not the correct part number for a '79 550. I never heard of a hollow axle on a GS. Usually when they go hollow they go bigger diameter, I bet that's some minibike or 100cc dirt bike axle that happens to be the right diameter.

Probably would NOT be strong enough for a heavy bike like an old GS.

[mmattockx]

Make sure it fits,and find out what it's for. That 64711-38210 is not the correct part number for a '79 550. I never heard of a hollow axle on a GS. Usually when they go hollow they go bigger diameter, I bet that's some minibike or 100cc dirt bike axle that happens to be the right diameter.

Partzilla says that 64711-38210 is a Suzuki part # that is obsolete and superceded by 64711-47000. 64711-47000 is an "axle, rear", used on 1977-1979 GS550E and L models. Looks like OP found the previous version axle that fits fine and is a Suzuki part meant for his bike.

64711-38210: http://www.partzilla.com/parts/detai...711-38210.html

64711-47000: http://www.partzilla.com/parts/detai...711-47000.html


Mark

[tkent02]

Has anyone ever seen a hollow axle for a Suzuki GS? I have certainly never seen one on a 550.

[cornishgs]

If you don't here from me again, it means it was not as good as later axle !!!

its got a 5mm hole through from one end to the other. never been used in original packaging with right numbers and sticker?

[steveb922]

I've never seen a hollow one either. Where did you get it from?

[mmattockx]

If you don't here from me again, it means it was not as good as later axle !!!

its got a 5mm hole through from one end to the other. never been used in original packaging with right numbers and sticker?

Don't sweat a 5mm hole through a 17mm axle, that is no issue. It reduces the cross sectional area by 8.8% (ie - 8.8% weaker in tension and shear), the bending strength by 0.6% and bending stiffness by 0.7%. That is negligible for your uses.

I agree with everyone else, where did you find such a thing?


Mark

[cornishgs]

here it is picture on e bay of item I will take picture of ends and add.

[cornishgs]

here is another pic just measure hole again 9mm !!

[cornishgs]

And the other end!.

I don't no if its been mislabelled, not sure now if it is a 64711-38210 .if anyone has seen one before on a gs let me know .I Don't think I want to fit it unless I now its meant for a gs550 .
The reason I got a new one was old I had a go at diy zinc plating old axle bolt 2x and was worried about it embrittlement also very scored up from seized bearings.

[mmattockx]

here is another pic just measure hole again 9mm !!

A 9mm bore on a 17mm OD is a different issue. You are giving up 28% of your sectional area and that is more than I would live with. Unless you can definitively determine the provenance on that axle and confirm it really is a Suzuki part meant for your bike I wouldn't use it.


Mark

[steveb922]

If you get stuck, I have a plating set-up. You're welcome to pop up and use it if it would help.