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Just wondering how many of you have ever overhauled an engine on your own. I haven't done one myself, but have taken part in a couple when back on the farm; though my experience is still very limited.
I was thinking about this today 'cause I may decide to do my car when it comes time. Don't know if I should try it or not.
If you are careful, meticulous to a fault, have good quality measuring tools (verniers, micrometers) and know of a good shop to rebuild the heads and do machining work, then go for it.
The internal combustion engine is not that complicated mechanically, just has tight tolerances.
If you can hold a wrench and read a micrometer, go for it.
I have rebuilt half a dozen in my time, the strangest was a Triumph 2.5 PI - I had 4 bolts left over when I finished, in 1978, and the car is still running perfectly... ( a member of my family bought it from me in 1980, and still uses it daily)
The easiest was an Atkinson with a Gardener 180.. the hardest was a Perkins 4 liter diesel in a Ford truck in India. I probably will never try to do anything with my powerstrokes... they are way too complicated.
Several. But due to the price of rebuilding vs. the price of a crate motor (ford motors), I have gone with the crate motors lately and have had good results.
Some.
The best was my 302 cid which I tuned to 270 hp with fine ballancing, ported 289 heads and some other stuff. It was connected to a SROD tranny after I wrecked the original C4 auto.
Some day maybe I do some overhaul work at my 420 cid diesel....
As we speak I am in the midst of a 5.4L rebuild. Never did an engine before but was surprised at how simple and engine actually is. It is very basic if you are a mechanical person. A GOOD machine shop doesn't hurt either, as long as they take time to answer any questions you have. The machine shop I use the owner told me "Advice is free, if you don't listen and F**K it up it ain't free to fix." So listen to their advice and not your buddy that thinks he knows it all. Opinions are like *********s....................
Originally posted by 95CobraR Several. But due to the price of rebuilding vs. the price of a crate motor (ford motors), I have gone with the crate motors lately and have had good results.
That is a very good point. It seems the crate motor market has gotten so competitive that you can replace cheaper than you can rebuild. There is also a difference between a rebuild and a re-ring. When I was a kid my dad would re-ring and engine in the car, sure it worked but tolerances are pretty much out the window and the likelyhood of bearing failure and broken rings is high. The most critical part of any internal engine surgery is cleanliness,,this is probably the number one cause of failure in a rebuild,,metal residue from the old components. But like someone already pointed out opinions are like *********s,,and this is just my opinion.
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