WendyArmbuster t1_j7sncs9 wrote on February 9, 2023 at 2:54 AM

I've got a 2000 Honda Civic with a D16Y7 in it that is going to need a rebuild soon. I want to do it myself, but I've never rebuilt an automotive engine, but I'm pretty handy. Do you just take the case, rods, and crankshaft to the machine shop and have them machine them? Will they tell you how much they took off to fit specific bearings? Do you have to do your own measurements with micrometers and tell them how much to take off to fit the bearings you already bought? How do they/you find out what bearings are available? If they take material off the crank journals, do you have to buy new rods, or do the rods have bearings in them? I mostly just wonder who's in charge of making machining decisions. Does the machine shop do that, or do you have to make the decisions and tell them exactly what to do?

ilikesoggyfry OP t1_j7snpyn wrote on February 9, 2023 at 2:57 AM

I haven't gotten that far into it yet so I'm not to sure. But I would say if you wanted something where your involved with everything down to the specifics you'll probably want to go to a customs shop and not just a generic machine shop but I'm sure you could do it either way

417zq8 t1_j7uv9z4 wrote on February 9, 2023 at 4:05 PM

Typically get the block honed, the head machined to make it flat, valve seats get pressed in, if the valves need it they can machine them in a process called valve lapping. If the crank needs machined it would be a lot cheaper in your case to replace the motor with another take out unless you are going for big horsepower. Oreilly machine shop is a great resource.

WendyArmbuster t1_j7wpbwp wrote on February 9, 2023 at 10:58 PM

I can get a crate engine for $1,500, but I really want to do it myself. I recently rebuilt my transmission from a youtube video and it was surprisingly quick, cheap, and easy. I think I paid $175 for new bearings and syncros. I've had my engine apart while it was in the car before. I took the rods off and the pistons out, and I honed the cylinders and re-ringed the pistons, but it has 300,000 miles on it now and it needs a boring. It has low compression on one of the cylinders, but a fairly newly rebuilt head.