Quote:
Originally Posted by Jamiebridges123
Used neither, never heard of time sert. HELI-COIL FOR YOU SIR. 
I'd hazard a guess it being "Snap-on" vs "Halfords" all over again. |
not quite correct, a heli-coil is a wire coil ( sort of discriptive in the name really) which will provide a track for the threaded bolt or whatever to use, it's very good and requires minimal original material to be removed.
Time-sert is actually a solid bush insert (there are other makes as well), a little stronger than a heli-coil in itself, but reqiues slightly more of the original material to be removed to use it.
Generally where you have limited room in an engine case (for example) and the surrounding metal is good I'd use a Heli-coil, however if there was any cracking or weakness in the surrounding metal (or they work very well in plastics to) a Time-sert works best (bit more expensive to).
Cheers Mark.