1987 528e connecting rod bolts - Re-use?
1987 528e connecting rod bolts - Re-use?
Just wondering if these are single use or if I can re-torque them without concern.
Re: 1987 528e connecting rod bolts - Re-use?
I would not consider it.
Re: 1987 528e connecting rod bolts - Re-use?
You can probably get away with it if you can't afford new bolts. The eta engine is low reving so I'm sure many in the past have reused bolts. But if it were my car I'd buy new ones for peace of mind.
Re: 1987 528e connecting rod bolts - Re-use?
I'm shocked on all this. Having been way into M10s and M30s, which are for the most part the same thing, they use reusable bolts and reusable head bolts. Even with my limited M20 knowledge I've been well aware of M20s needs for new head bolts, but the rods surprise me. Not contesting it at all, my knowledge is very limited here, just surprised.
Re: 1987 528e connecting rod bolts - Re-use?
if it doesn't specify in the manual, the torque specs ought to be a clue. If its got something about degrees of rotation, thats a torque to yield bolt and cannot be re-used.
if you want to do it more science-like, measure the diameter of the bolt. If it gets thinner in the middle, its stretched.
if you want to do it more science-like, measure the diameter of the bolt. If it gets thinner in the middle, its stretched.