[s-cars] Engine Noise

[DGraber460 at aol.com]

I have not been so lucky.
After only 4 laps (brakes faded badly) of moderate (not revved over 5200  
rpm, and running 14 psi boost) track time where the oil pressure did not drop  
alarmingly, and the oil level to the top line on the stick, my WX spun #5 rod  
bearing. It did not sound like a rod, but more like a slightly loose wrist pin. 
 On tear down I was astounded at the condition of #5 rod bearing.
I still have it also for show and tell, as it looks terrible.
I5's are _not_ bullet-proof!
 
Dennis
Denver
 
 
In a message dated 8/28/2006 8:04:08 P.M. Mountain Daylight Time,  
cody at 5000tq.com writes:

Kent  McLean wrote:
> David Ullrich wrote:
>> Excellent point. But, I  have to ask, have you ever heared of rod or
>> journal bearing  failures on a 10v I5 that is stock and not very
>> severely abused  (like run with no oil or overrevved)? From my
>> experience, even  poorly maintained and run hard I5s just laugh at
>> you and beg for  more.
>
> I ran "Bad Puppy" out of oil (or rather, it spit out the  oil on
> its own) on 2 or 3 occasions. It made some noise with no  oil,
> but once I fixed the oil cooler hoses and put oil back in,  all
> was quiet again.  Yes, you have to work hard to kill  them.
>

I can beat that, impressive as it is. After ticking over  200,000 miles I 
more then QUADRUPLED the factory boost level and raised  the rev limit nearly 
2,000rpm over stock. That didn't kill it so I later  added nitrous and a 
larger turbo, plus some other things. After a few  cross country trips plus 
*tons* of beating I blew a head gasket and  decided to do a full teardown. 
Only moifications effecting longevity were  stiffer valve springs and ARP 
head bolts.

I even once had a bad  puppy incident when I, embarasingly enough, double 
gasketed an oil filter  and had it blow out all the oil 2 blocks away from 
the shop. Heard a  strange "Pop" while sitting at a red light. Not knowing 
exactly what  happened I drove (gently) across the intersection and into a 
parking lot  with most if not all of the engine oil on the ground behind me.

After  all of that all rod and crank bearings looked as though they had 
10,000  miles on them if that. I kept a few for show and tell they were so  
good.

-Cody Forbes
http://www.5000tq.com
'86 5k noT  noQ
'86 5k noT noQ - Parting Out
'87 5ktq
'87 5ktq - Fast. Really  Fast. 

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