Engine Noise

John Cody Forbes cody at 5000tq.com
Mon Aug 28 22:01:42 EDT 2006

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 

-Cody Forbes
'86 5k noT noQ
'86 5k noT noQ - Parting Out
'87 5ktq
'87 5ktq - Fast. Really Fast. 

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