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

stil bil · 10-29-2002, 05:28 AM

if anybody has done this themselves how difficult was it and how long did it take?

thanks

red240ne · 10-29-2002, 10:21 AM

be specific senor. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/exclamation.gif" border="0" valign="absmiddle" alt='

'>

stil bil · 10-29-2002, 10:50 AM

topic title "anybody rebuilt their KA"

>how hard?

>how long did it take?

red240ne · 10-29-2002, 11:00 AM

see, now it's just more obvious that you don't know what you're asking. you want everything to be handed to you. maybe we don't have time to spend on telling you everything about balancing, compression ratios, replacing rods, cams, crankshafts, pistons...actually i have time during the day this week, ha cuz i have the week off, but anyways, come on, ask better questions. if you have no clue what you're doing, it could take you months for a rebuild. which would mean months without a car. that would suck...

gabossie · 10-29-2002, 02:42 PM

Wooaaa, chill out newb. Sounds like you know what you are talking about, but why don't you use it to help him rather than flaming him. I haven't rebuilt my KA yet, I am actually quite interested in the answers to this question. I would be doing a simple rebuild (replacing seals, etc.) not replacing cams and rods or doing any boring or anything. So how long does it take for a somewhat experienced person to rebuild the KA?

BEISSEN · 10-29-2002, 02:57 PM

Hey red240ne why dont you stop being an ass.If you are so briliant and know so much share with the guy.How more detailed can a person get that does not know the answer to a question get.if he knew everything he would not ask right so if you know share or shut the heck up man.If he knew what he wanted he could ask.A rebuild is very broad and basic so help and not be like the rest of the nebs that have been and gone.

*sykikchimp* · 10-29-2002, 03:18 PM

If your post is nothing but a Flame..  DON'T POST IT..  I don't care how long you've been on the board.  one day, or two years.  It's called RESPECT.

Red240ne's post was fine.  He askedfor more specifics on the question..  as you said a rebuild is very broad..

Stil Bil  -  What kind of rebuild are you talking about?  Performance rebuild?  Or just rebuilding back to OEM spec?  Replacing any componants specifically?  What is the goal of this rebuild?  if you answer these questions we can more appropriately answer your question.

stil bil · 10-29-2002, 05:45 PM

thanks for backing me guys,

red240ne: qranted i did ask a very vague question, i should have specified what type of rebuild as sykikchimp mentioned, but i didnt so i assumed that you didnt catch what i was asking, a complete misunderstanding.  but you didnt have to fly off, it does nothing but get most all the members pissed off at you( trust me i know just ask around, but all is cool now)  

as for the rebuild, i was thinking about a complete oem rebuild from Flatlander Racing, but replacing the stock pistons with a set(brand undecided) of 8.5:1 compresion forged pistons.

now if you could explain on what problems or quirks a very mechanically versed person or group of guys might encounter

thanks!
william

240sx_u · 11-01-2002, 06:27 PM

hey    ya i was thinking of doing that if i dont get a sr20det

Nismo241 · 11-02-2002, 07:40 PM

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (stil bil @ Oct. 29 2002,6:45)</td></tr><tr><td id="QUOTE">thanks for backing me guys,

red240ne: qranted i did ask a very vague question, i should have specified what type of rebuild as sykikchimp mentioned, but i didnt so i assumed that you didnt catch what i was asking, a complete misunderstanding. but you didnt have to fly off, it does nothing but get most all the members pissed off at you( trust me i know just ask around, but all is cool now)

as for the rebuild, i was thinking about a complete oem rebuild from Flatlander Racing, but replacing the stock pistons with a set(brand undecided) of 8.5:1 compresion forged pistons.

now if you could explain on what problems or quirks a very mechanically versed person or group of guys might encounter

thanks!
william</td></tr></table><span id='postcolor'>
Unless you plan on turbo...I wouldn't use the 8.5:1 pistons, the pistons out of a 89 KA24E are at 9.0:1 and are still factory.  Thats what I'm going to do with mine.  It's not really that difficult to rebuild if you have a general idea of what needs to be done and how things work.  You would be looking at about 300$ in machine work on top of whatever you might have paid for the parts.  With the head, it's pretty easy to do.  You would have to have your head flow tested  which is usually about 175$.  If you are consistent with your work, and rush the machine shop, you could have it done in about a week.  I think the biggest part is just pulling the motor out, you could do it with it still in the car, but you have a lot less room to work, and you would have to get the head and oil pan off to get the pistons and rods out.  I've seen people do it that way but it's easier to pull it and do it that way.

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.

10-29-2002, 05:28 AM	#1
stil bil Zilvia Junkie Join Date: Jun 2002 Location: Texas Age: 43 Posts: 320 Trader Rating: (0) Feedback Score: 0 reviews	if anybody has done this themselves how difficult was it and how long did it take? thanks __________________ DUDE I'M GETTING A TURBO!!

10-29-2002, 10:21 AM	#2
red240ne Leaky Injector Join Date: Oct 2002 Posts: 122 Trader Rating: (1) Feedback Score: 1 reviews	be specific senor. <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/exclamation.gif" border="0" valign="absmiddle" alt=''> __________________ nebraska sucks

10-29-2002, 10:50 AM	#3
stil bil Zilvia Junkie Join Date: Jun 2002 Location: Texas Age: 43 Posts: 320 Trader Rating: (0) Feedback Score: 0 reviews	topic title "anybody rebuilt their KA" >how hard? >how long did it take? __________________ DUDE I'M GETTING A TURBO!!

10-29-2002, 11:00 AM	#4
red240ne Leaky Injector Join Date: Oct 2002 Posts: 122 Trader Rating: (1) Feedback Score: 1 reviews	see, now it's just more obvious that you don't know what you're asking. you want everything to be handed to you. maybe we don't have time to spend on telling you everything about balancing, compression ratios, replacing rods, cams, crankshafts, pistons...actually i have time during the day this week, ha cuz i have the week off, but anyways, come on, ask better questions. if you have no clue what you're doing, it could take you months for a rebuild. which would mean months without a car. that would suck... __________________ nebraska sucks

10-29-2002, 03:18 PM	#7
sykikchimp WOW addicted Join Date: Dec 2001 Location: the moon Age: 44 Posts: 6,525 Trader Rating: (0) Feedback Score: 0 reviews	If your post is nothing but a Flame..  DON'T POST IT..  I don't care how long you've been on the board.  one day, or two years.  It's called RESPECT. Red240ne's post was fine.  He askedfor more specifics on the question..  as you said a rebuild is very broad.. Stil Bil  -  What kind of rebuild are you talking about?  Performance rebuild?  Or just rebuilding back to OEM spec?  Replacing any componants specifically?  What is the goal of this rebuild?  if you answer these questions we can more appropriately answer your question. __________________

10-29-2002, 02:57 PM	#6
BEISSEN Zilvia FREAK! Join Date: Nov 2001 Location: Woodbridge,VA Age: 42 Posts: 1,028 Trader Rating: (0) Feedback Score: 0 reviews	Hey red240ne why dont you stop being an ass.If you are so briliant and know so much share with the guy.How more detailed can a person get that does not know the answer to a question get.if he knew everything he would not ask right so if you know share or shut the heck up man.If he knew what he wanted he could ask.A rebuild is very broad and basic so help and not be like the rest of the nebs that have been and gone.

10-29-2002, 05:45 PM	#8
stil bil Zilvia Junkie Join Date: Jun 2002 Location: Texas Age: 43 Posts: 320 Trader Rating: (0) Feedback Score: 0 reviews	thanks for backing me guys, red240ne: qranted i did ask a very vague question, i should have specified what type of rebuild as sykikchimp mentioned, but i didnt so i assumed that you didnt catch what i was asking, a complete misunderstanding.  but you didnt have to fly off, it does nothing but get most all the members pissed off at you( trust me i know just ask around, but all is cool now)   as for the rebuild, i was thinking about a complete oem rebuild from Flatlander Racing, but replacing the stock pistons with a set(brand undecided) of 8.5:1 compresion forged pistons. now if you could explain on what problems or quirks a very mechanically versed person or group of guys might encounter thanks! william __________________ DUDE I'M GETTING A TURBO!!

11-01-2002, 06:27 PM	#9
240sx_u Join Date: Aug 2002 Posts: 4 Trader Rating: (0) Feedback Score: 0 reviews	hey    ya i was thinking of doing that if i dont get a sr20det __________________ 1992 240sx auto.- sparco torinoes. soon to come: injen intake, apexi n1 single, and 5zigen corspes.

11-02-2002, 07:40 PM	#10
Nismo241 Zilvia Member Join Date: Oct 2002 Location: Oregon Age: 41 Posts: 236 Trader Rating: (0) Feedback Score: 0 reviews	</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (stil bil @ Oct. 29 2002,6:45)</td></tr><tr><td id="QUOTE">thanks for backing me guys, red240ne: qranted i did ask a very vague question, i should have specified what type of rebuild as sykikchimp mentioned, but i didnt so i assumed that you didnt catch what i was asking, a complete misunderstanding. but you didnt have to fly off, it does nothing but get most all the members pissed off at you( trust me i know just ask around, but all is cool now) as for the rebuild, i was thinking about a complete oem rebuild from Flatlander Racing, but replacing the stock pistons with a set(brand undecided) of 8.5:1 compresion forged pistons. now if you could explain on what problems or quirks a very mechanically versed person or group of guys might encounter thanks! william</td></tr></table><span id='postcolor'> Unless you plan on turbo...I wouldn't use the 8.5:1 pistons, the pistons out of a 89 KA24E are at 9.0:1 and are still factory.  Thats what I'm going to do with mine.  It's not really that difficult to rebuild if you have a general idea of what needs to be done and how things work.  You would be looking at about 300$ in machine work on top of whatever you might have paid for the parts.  With the head, it's pretty easy to do.  You would have to have your head flow tested  which is usually about 175$.  If you are consistent with your work, and rush the machine shop, you could have it done in about a week.  I think the biggest part is just pulling the motor out, you could do it with it still in the car, but you have a lot less room to work, and you would have to get the head and oil pan off to get the pistons and rods out.  I've seen people do it that way but it's easier to pull it and do it that way. __________________ Branden Rosa 1990 RB240sx

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.