crankcase wrong unbolting order

[79-GS550-L]

ok, in a moment of sheer stupidity I undid the lower crankcase bolts in reverse order (unbolted from 1-12 instead of 12-1). Will this cause any problems?

[Steve]

Probably not.

However, in the future, Crack #12 loose, then snug it back. Move to #11, then on down to #1. Now go ahead and loosen/remove them all, starting again with #12.


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[79-GS550-L]

thanks. That's a relief. I hadn't heard of snugging the bolts back up but that makes sense. I didn't loosen them too much, just enough to break them loose.

Also the book (haynes) wasn't clear on whether to loosen/tighten the other bolts before or after the numbered ones. I did some before and some after. Does that even matter?

[Steve]

Also the book (haynes) wasn't clear on whether to loosen/tighten the other bolts before or after the numbered ones. I did some before and some after. Does that even matter?

I have never been that far on an engine, so I don't know exactly what you are talking about here.

I had never thought about snugging the bolts back up when removing them, either,
but then it was explained to me: you tighten them in stages, why not loosen them in stages, too?


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[bwringer]

You'll be fine -- it's more important to pay attention when you're reassembling the crankcase.

Generally, I remove all the 6mm bolts (10mm heads) first and replace them last. Any order is fine -- there's not that much torque on them.

The 8mm bolts (12mm heads) are carrying more torque, so you'll want to pay closer attention to the order suggested. I generally tighten these in two or three stages.

When first snugging these down, I take it very slowly and check several times as I tighten to make sure nothing is out of place or trapped where it shouldn't be.