Originally Posted By: Cujet
Originally Posted By: Trav
Not the approach i would have taken on the engine, i would have done a proper bore job with new bearings and pistons/pins and maybe even rods depending on depending on their condition.
No way would i open it up, just hone it and throw new rings in it, too much work for a half arsed effort IMHO.
Given the miles i would probably just tossed a low mile Japanese take out in it for $800.
I disagree with your point about just a hone and ring replacement being insufficient.
A full overhaul would likely require bore, larger pistons, full bearing sets, etc. That's not cheap and may not be worthwhile on an older car.
Nor do I see a simple ring replacement as a bad thing. Quite often, replacing just the rings results in very extended engine life. In fact, if the cylinder is not particularly worn, a proper hone with a rigid hone removes high spots and the cylinders remain true afterwards.
In fact, it's not unusual for industrial engines to last 2000 hours on the factory set of rings and 4000 hours on the replacement rings. Without a full overhaul or bore.
2000? I hope you mean 20,000 and 40,000.
My Grand Prix has an engine hour meter. It is an 04 with 2200 hours on the engine.
So...
2200 hours is 91.666 days.
That is 9.2 days a year
9.2 x 24 hours in a day = 220.8 hours a year (I could have just divide 2200 by 10 but wanted to lay it out)
220.8 divided by 12 = 18.4 hours a month lets just say 19.
Lets assume the car got driven 20 days a month. That is less than an hour a day.
There are industrial engines out there running 24/7 or close to it. Lets assume an engine is run 8 hours a day.
That is 56 hours a week. In 36 weeks it would have over 2000 hours on it.
I know the trucks where I used to work had well over 10,000 hours on them.
A few of the diesel generators ran constanly.
Am I missing something? Is my math incorrect?