GQ wrote:Just read on another thread - a bolt let go on a v8 causin the engine to basically fall apart - anyone shed some light on that..
It happens when the rebuilders make basic mistakes ..... usually lack of experiance is the only true cause.
In the example you are queering the motor had sized on a previous occasion, as to whether the rebuilder was told of this I'm unsure but he made several other mistakes as listed in the "OWNED" thread started by myself in the general chitchat section.
A sized motor usually results in weakened conrods, weakened conrodbolts, and other damage that is usually obvious to the naked eye.
In this example the engine was rebuilt
without the rods being checked, the rod bolts being replaced and the original nuts being used.
.... a kewl recipie for total disaster which is what happened unfortunately.
Usually the nuts fail or become loose and then its just a question of when it lets go..... The conrod bolts wernt replaced either and remembering that the motor had sized previously this meant that the bolts had nodoubt been stretched.... they had been stretched when the motor sized and then stressed again when retentioned during the rebuild..... not a good combonation.
when rebuilding a motor ALWAYS replace the conrod nuts/bolts.... this rule isnt just for V8 engines either although they tend to break them easier in a rebuilt situation compared to other engines.
From what I have seen of this motor I asume it was simply refreshed with new bits and I think I am safe to say it wasnt done with any true knowlege of rebuilding motors .......especially V8's.
Anyone can pull a motor apart and replace the various bits that require changing without any true understanding of what they are doing.... a few years of experiance later and most ppl know what really works and what is really involved.........
Backyard mechanic = backyard warranty.
Kingy
[color=blue][size=150][b]And your cry-baby, whinyassed opinion would be.....? [/b][/size][/color]