anybody rebuikt their KA???? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

S13Grl · 11-03-2002, 02:06 AM

A rebuild without any machineshop work will take you about a week to two weeks to do, working consistently, every day, a few hours a day. To pull the motor and install it on a stand, you'll need about 3-5 hours. About the same to install it back. The first day, you'll probably want to pull the cyl. head off, get all the timing components out, put the block on a motor stand, with the oil pan on, let everything drain to the bottom overnight, let all the coolant drip out and then the next day start taking the block apart. Unless this motor has more then 80-90K on it and you just bought it, I myself wouldn't send it to a machine shop. It's always a good idea to check the block for cracks, check the head for cracks and warpage. Pretty much everything else you can do with a good T-gauge set and a good set of micrometers (don't forget feeler gauges for mating surface straightnesses and for your crank endplay, and all other clearances you'll need to measure.) You know, I could go on about this forever. It's simple, really, unless you need a machine shop to do any work. I'm gonna be doing one in a few weeks, and I'm not sending anything to the shop, because, hopefully, if everything comes through, this is a very low-mileage motor, and everything as far as removal and replacement, I can do. Start with the block, free of oil pan and head, take your measurements, figure out if it's worth working on this thing or sending it out to a shop. Then take your pistons and rods out. You're supposed to put everything back exactly where it was, exactly in the position you found it in. Everything you are reusing, that is. So mark things, if you're re-using them, you can't go wrong that way.

If you're after lower compression, it's not just about pistons. It's also about the length of the rod and the actual crankshaft measurements themselves. So if you're getting a piston with a shorter head, you might as well get a set of shorter rods. This is really really fun. If you're located in the chicagoland area, I could always help you out. I'm not a super-genius, but I think I have an overall good background when it comes to engines, disassembly, reassembly, and all that other basic stuff.

Oh, PS, I smartassed in another topic that's also on KA rebuilding, check Tech, should be from today.

11-03-2002, 02:06 AM	#11
S13Grl Married to the Mob Join Date: Dec 2000 Age: 44 Posts: 3,670 Trader Rating: (0) Feedback Score: 0 reviews	A rebuild without any machineshop work will take you about a week to two weeks to do, working consistently, every day, a few hours a day. To pull the motor and install it on a stand, you'll need about 3-5 hours. About the same to install it back. The first day, you'll probably want to pull the cyl. head off, get all the timing components out, put the block on a motor stand, with the oil pan on, let everything drain to the bottom overnight, let all the coolant drip out and then the next day start taking the block apart. Unless this motor has more then 80-90K on it and you just bought it, I myself wouldn't send it to a machine shop. It's always a good idea to check the block for cracks, check the head for cracks and warpage. Pretty much everything else you can do with a good T-gauge set and a good set of micrometers (don't forget feeler gauges for mating surface straightnesses and for your crank endplay, and all other clearances you'll need to measure.) You know, I could go on about this forever. It's simple, really, unless you need a machine shop to do any work. I'm gonna be doing one in a few weeks, and I'm not sending anything to the shop, because, hopefully, if everything comes through, this is a very low-mileage motor, and everything as far as removal and replacement, I can do. Start with the block, free of oil pan and head, take your measurements, figure out if it's worth working on this thing or sending it out to a shop. Then take your pistons and rods out. You're supposed to put everything back exactly where it was, exactly in the position you found it in. Everything you are reusing, that is. So mark things, if you're re-using them, you can't go wrong that way. If you're after lower compression, it's not just about pistons. It's also about the length of the rod and the actual crankshaft measurements themselves. So if you're getting a piston with a shorter head, you might as well get a set of shorter rods. This is really really fun. If you're located in the chicagoland area, I could always help you out. I'm not a super-genius, but I think I have an overall good background when it comes to engines, disassembly, reassembly, and all that other basic stuff. Oh, PS, I smartassed in another topic that's also on KA rebuilding, check Tech, should be from today.