<VV> Gernade engine autopsy

[AKG]

That leads to more questions.  What size bolts?  Were the rod magnafluxed?
Shotpeened?
I have a set that has had all that done and bushed in the small end for full
floating pins and 11/32 SBC SPS bolts.  Never a problem with the rods.
Sounds like a closer inspection of the pieces may reveal where the crack
started most likely in the area where the big end was lightened, perhaps at
an edge that didn't have a nice radius?

> From: Levair at aol.com
> Date: Fri, 8 Jul 2005 00:12:28 EDT
> To: Fastvair at yahoogroups.com
> Cc: virtualvairs at corvair.org, FREDSCLASSICS at aol.com, Yenko108 at hotmail.com,
> Slevair at yahoo.com, S_levair at iquest.net
> Subject: <VV> Gernade engine autopsy
> 
> all,
> Michael tore down his "Gernade with pin fully pulled" engine today.
> The No 5 and no 6 rods left the crankshaft. There are no big ends left to
> examine.
> Trashed the block and cam also. The heads and valve train are perfect.
> If the MSD rev limiter is reliable ---big, big IF-- the engine never exceded
> 6800 rpm. 
> The no 5 main journal is trash but 4 and 6 are perfect. We suspect that the
> big ends of the rods simply let go. The rods were bored (weakened) for
> oversize bolts and had extensive metal removed for balancing. Weakened in the
> interest of speed?
> Opinions welcomed.
> Michael has been offered my YS015 Stinger for Beaver Run. Please encourage
> him; he's really down for several reasons.
> This probably means that I have to hand the top Tweety back to him at
> Beaverrun.. The Stinger is bettered prepared than the the Roe car and probably
> about 
> 200# lighter. 
> 
> Warren
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