Rebuilding engine vs Buying a new one

Aug 12, 2006 5 Replies

My engine just slung a rod, and obviously I'll need to either rebuild it or buy a new block. If I have a mechanic do it, would I come out cheaper having them rebuild it, or buying a new engine. What is the warranty from most mechanics on a rebulit engine? Is there a decent warranty on Toyota engines when you buy them new?



OR you can get a used one from one of the importers from Japan. Usually guaranteed under 40K miles, they come with everything from computer and wiring harness to AC air compressor, alternator, etc. You can get it with or without a transmission attached.

Even with shipping it's comparable to buying from a local junkyard and it's dropped off right at your door. Got a loading dock handy? Costs even less!

Save your money to give to the oil companies/bush.

If, by "slung" a rod, you mean that a connecting rod has broken or bent, the engine block is probably not salvageable, especially if the rod made a hole in the block. If the block is not salvageable, then it is not rebuildable.

If you purchase a new engine, they come as a short block without the head and valvetrain and long block with the head and valvetrain. In either case, the accessories such as the AC compressor, power steering pump, and alternator have to be transferred over from the old engine.

Warranties from mechanics vary widely on rebuilt engines from none to several thousand miles.

An block purchased from a Toyota dealer is the service parts warranty - I believe it is 90 days. If the work is done by the dealership, the labor is also covered for that time period.

Other sources of engines are junk yards and aftermarket engine importers. The warranties on both junk yard and aftermarket engines vary widely so check before you buy.

What ever way you go be sure to find out what happens if the engine has problems or needs to come back out. For example, who eats the cost and the labor for replacing a defective engine.

GL Dan

Unless you buy a different rebuilt engine from a company that specializes in that product and tests all their rebuilds before they ship them, chances are that a custom rebuild of your engine by a mechanic will likely cause you massive problems.

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required