07-08-2010, 05:50 PM #1
- Join Date
- Nov 2009
Should you replace all bolts when rebuilding motor?
BMW/Porsche mechanic buddy of mine says that he replaces all block and head bolts when he rebuilds a motor. Says they are made to stretch and are no good once removed. Do you all use new bolts to put the crankcase and cylinders back together? This being my first rebuild, ('01 XLT1200), I'd like to get it right.
Also, do you clean crankcase covers and cylinders with just parts cleaner? What is soda blasting? Who does it?
07-08-2010, 05:57 PM #2
07-08-2010, 05:59 PM #3
- Join Date
- May 2007
- Buzzards Bay, Massachusetts
i clean mine as well with a re-threading tool, re-apply appropriate type of lock-tite and torque to spec
07-09-2010, 02:16 PM #4
I always run mine through the wire wheel on the bench grinder and reuse them.
07-10-2010, 12:28 AM #5
However.... if you want to replace the bolts with something different, you can go to boltdepot.com and order several different styles. I replaced the head bolts on my GPR with socket head bolts.
And I replaced a lot of the ones on the exterior with button head sockets.
Bolt Depot has all of these in just about any size and length you want, in stainless steel. I've had good luck with them. They even sell stainless bolt covers with different designs on them if you want to really bling it out.
07-10-2010, 11:48 AM #6
I would think that cleaning with parts cleaner is perfectly fine. Soda blasting is just that. Instead of "sand" for blasting (high pressure air feeds the sand at high velocity at the part) where you use glass bead or actual sand. For "soda" blasting you use baking soda. The sand will damage the surface on soft metals like aluminum, but the soda is soft and will not harm the surfaces. I really don't think there would be a need for that unless you already have the equipment.
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