240SX tune-up - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Insert BS here A place to discuss anything you want

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 02-21-2009, 10:03 PM   #1
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default 240SX tune-up

My 240SX hit 150,000 miles this past week and with the Miata nearly out of the garage, I figured I would start looking at giving the engine an overhaul. I know I want to change the head gasket, valve cover gasket, exhaust/intake gasket, etc... The thing is, should I take the motor out of the car to work on it or not? The motor appears to be in good condition, but it seems that the oil pick-up tube gets clogged or something because the valves tick like there isn't a drop of oil in the head on occasion. So I am planning on pulling the pan. If I am going through all this, think it would be worth the trouble to just pull the motor and put in a new clutch and lightened flywheel? Sorry about the indecisiveness, but I know that a lot of people here have done this more than I have.
mazda/nissan is offline   Reply With Quote
Old 02-21-2009, 10:54 PM   #2
Elite Member
iTrader: (12)
 
Join Date: Sep 2007
Location: Charlotte, NC
Posts: 6,868
Total Cats: 66
Default

here is a clue....

MIATAturbo.net

Doppelgänger is offline   Reply With Quote
Old 02-21-2009, 11:42 PM   #3
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

Quote:
Originally Posted by Doppelgänger View Post
here is a clue....

MIATAturbo.net

here is a clue

insert BS here

I had the Miata first, so it is going faster first. I still need a reliable daily driver though, so any constructive comments are welcome.
mazda/nissan is offline   Reply With Quote
Old 02-21-2009, 11:47 PM   #4
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,202
Total Cats: 2,584
Default

really its your call man. how the **** are we supposed to know what health your motor is in and what you need to do to it to keep it running healthy.
18psi is offline   Reply With Quote
Old 02-22-2009, 12:05 AM   #5
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

It's not hard to pull the engine in a 240sx, just pull the bitch. And fix everything that's fucked while it's apart. Don't cut corners, etc. Sounds like it may need some work anyways.
patsmx5 is offline   Reply With Quote
Old 02-22-2009, 02:19 AM   #6
Junior Member
iTrader: (3)
 
Join Date: Jul 2005
Location: AL
Posts: 200
Total Cats: 0
Default

SOHC or DOHC?
mx5roadster is offline   Reply With Quote
Old 02-22-2009, 02:36 AM   #7
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,202
Total Cats: 2,584
Default

trohc
18psi is offline   Reply With Quote
Old 02-22-2009, 11:18 AM   #8
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

Quote:
Originally Posted by 18psi View Post
trohc
lol

its a SOHC, I suppose I will just pull it then. Who knows how much work it really needs. Do you guys recommend pulling all of the guts out of the motor for a detailed inspection, or just look over the parts and make sure they don't look bad? I don't want this to be a 1 month project because who knows how long it is going to be before I blow up the miata's motor
mazda/nissan is offline   Reply With Quote
Old 02-23-2009, 11:10 AM   #9
Junior Member
iTrader: (3)
 
Join Date: Jul 2005
Location: AL
Posts: 200
Total Cats: 0
Default

Replace the timing chain guides with metal ones while you are at it, the plastic ones like to break and if they do you can say goodbye to you valves.


Quote:
Originally Posted by mazda/nissan View Post
lol

its a SOHC, I suppose I will just pull it then. Who knows how much work it really needs. Do you guys recommend pulling all of the guts out of the motor for a detailed inspection, or just look over the parts and make sure they don't look bad? I don't want this to be a 1 month project because who knows how long it is going to be before I blow up the miata's motor
mx5roadster is offline   Reply With Quote
Old 02-23-2009, 11:22 AM   #10
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

I would measure oil pressure hot and cold, and do a leakdown test before removing the engine. Go from there.
patsmx5 is offline   Reply With Quote
Old 02-23-2009, 12:52 PM   #11
Elite Member
iTrader: (5)
 
Join Date: Jan 2007
Location: Freehold, NJ
Posts: 1,577
Total Cats: -2
Default

get an sr20det? reliable and turbo?
disturbedfan121 is offline   Reply With Quote
Old 02-23-2009, 12:53 PM   #12
Elite Member
Thread Starter
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

Quote:
Originally Posted by disturbedfan121 View Post
get an sr20det? reliable and turbo?
and smaller... If I wanted to make this car go fast right now, I would turbo the KA. Who likes torque? I like torque

mx5roadster I had heard of having to do this with the VH45 motors, it never crossed my mind to check the KA for this as well, will do. Pat I'll need to find a way of testing the oil pressure, but the leak-down I will and can do before removal
mazda/nissan is offline   Reply With Quote
Old 02-23-2009, 01:26 PM   #13
Elite Member
iTrader: (15)
 
patsmx5's Avatar
 
Join Date: Aug 2007
Location: Houston, TX
Posts: 8,797
Total Cats: 248
Default

Quote:
Originally Posted by mazda/nissan View Post
Pat I'll need to find a way of testing the oil pressure, but the leak-down I will and can do before removal
An oil pressure gauge works pretty good.
patsmx5 is offline   Reply With Quote
Old 02-23-2009, 03:13 PM   #14
I'm Miserable!
iTrader: (1)
 
Join Date: Oct 2005
Location: Columbia, SC
Posts: 858
Total Cats: 0
Default

If you need some help pulling a KA, holla. I've done it a few times.
SloS13 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
CEEM (CA Car) with Pre-CAT Woes (P0124 Error) azathoth Engine Performance 8 11-30-2011 03:44 AM
1991 Nissan 240sx coupe - $$4500 bayside blue Cars for sale/trade 0 10-13-2011 08:35 PM
1996 Nissan 240sx - $7000 dronegro Cars for sale/trade 17 08-22-2011 02:24 AM
240sx sr20 swap advice needed(w/ pics) Fireindc Insert BS here 9 08-12-2009 10:34 AM
Hope to get a '91 Miata next week uptime Meet and Greet 6 10-21-2008 01:32 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:30 PM.