Quote:
Originally Posted by targa72e
Only partly right. The SC uses the 10mm bolts that were used on earlier engines as well.
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The 964 uses the same bolt and rod as 3.2/3.3 engines. 964 rod.
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I sit corrected- thanks!
But you've got me all curious now...
When I dropped a rod bolt & spun #6 (mechanical over-rev/operator error, too much movement in tired trans mounts taking double expected power and a 915 with a sloppy linkage, dog ate my homework, etc), wrench told me that the week after, a long-time (15-20 year) 3.2 owner brought his car in with a dropped rod bolt as well. And "it's always the same bearing(s)".
Said he was pretty sure the owner was a fairly conservative driver and very probably hadn't over-rev'd it. And that "sometimes they just do that".
So if the problem with the smaller bolts is that they stretch on an over-rev (or just sometimes when they feel like it for no apparent reason), come loose (sometimes 3 weeks later) - then why wouldn't 964/993 have the same/similar issue, if they use the same bolts - which presumably can get over-stressed?