motor case bolts: factory vs stainless
#1
motor case bolts: factory vs stainless
I'd "like" to replace the factory case bolts (NOT the 10 big "main bolts" or any of the rod bolts.... ONLY the smaller bolts that are external) with stainless, however I'd want to first confirm what the factory bolts were (strength wise). I'm not about to go replace a hardened alloy bolt with a stainless bolt.
Metric grades are usually X.X (ex: 8.8) if anything (no marking = standard low carbon), however the factory bolts have this funny mark on the top of them (kind of looks like a squished 8 with a line under it). It's not like any grade marking I have ever come across before.
Metric grades are usually X.X (ex: 8.8) if anything (no marking = standard low carbon), however the factory bolts have this funny mark on the top of them (kind of looks like a squished 8 with a line under it). It's not like any grade marking I have ever come across before.
#2
I don't think you will have any problems with replacing them with Stainless. The hardened ones are usually dark brown/black like the main bearing caps or connecting rod caps. The external ones that you see for holding covers and things like that are standard ones. The standard bolts that don't have a mark are in strength class 5.8.
Last edited by IDoDirt; 09-17-2011 at 09:45 AM.
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