Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 12-22-2012, 07:25 PM   #1
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Angry Ka24e no start, has fuel, spark, and still nothing help before i give up.... =(






OK so to start I have Experience with SOHC but this is one is making me pull my hair out... and im dont know what to do....

BACKGROUND
My friend bought a shell and has me helping him with it
Its a 1990 hatch came stock from factory with twin cam,
it was a shell so no engine or trans

He bought a SOHC cause we got a good deal from one of our friends on here, the engine had a new chain tensioners and HEADGASKET.
when we installed the engine, we where getting no injector pulse or spark. Asked around and got mix answers some said ecu, dizzy, and oddly enough if its true or not idk, but some one said the the brown and grey plug that goes from engine to body harness is diffrent and would need re-routing
SOOO. we tested the ecu on a running car tested good tested dizzy on a running car also tested good so we replaced the body harness.


THIS IS WHERE WE ARE AT NOW

#CRANKS
#HAS FUEL, PUMP PRIMES, AND INJECTORS HAS GROUND PULSE (TESTED)
#ENGINE HAS SPARK,
AND TIMING HAS BEEN SET MECHANICALLY

AND JUST CRANKS BUT WONT EVEN TURN ON FOR A SECOND

GOT THIS MOTOR FROM SOMEONE ON ZILVIA AND
SAID IT CAME FROM A RUNNING CAR.

ATTACHED IS A VIDEO

kjhgfhjk - YouTube

PLEASE HELP ME IM OUT OF IDEAS AND MY FRIEND IS JUST THINK OF SELLING IT



__________________
lscustoms is offline   Reply With Quote
Sponsored Links
Old 12-22-2012, 07:26 PM   #2
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Also what are the chances of the crank and cam not being lined up? Silver link does line up when set in tdc tho... So plz help...
__________________
lscustoms is offline   Reply With Quote
Old 12-22-2012, 08:34 PM   #3
rcdad123
Zilvia Addict
 
rcdad123's Avatar
 
Join Date: Jul 2011
Location: san diego
Posts: 639
Trader Rating: (0)
rcdad123 is an unknown quantity at this point
Feedback Score: 0 reviews
the ignition timing has to be off. remove the valve cover and make sure #1 cylinder is on top dead center on compression stroke. now remove the distributor cap and make sure rotor is pointing on number one spark plug wire. remove and re install distributor if rotor does not line up with number one spark plug wire. once everything is lined up, turn the crank counter clock wise a quarter turn then clock wise till the first timing mark (20 degrees advance) lines up with the timing pointer. now turn the distributor till rotor lines up with number one spark plug. re install valve cover. if you have fuel, spark, and compression, engine should start. good luck.
rcdad123 is offline   Reply With Quote
Old 12-22-2012, 09:02 PM   #4
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Have any one ever heard of the distributors not being interchangeable, from what i heard may be an issue is that the hitachi and mitsubishi dizzy wont work interchange with certain ecus ive never heard this?? Have you guys>>
__________________
lscustoms is offline   Reply With Quote
Old 12-22-2012, 09:38 PM   #5
hassanbakar123
Zilvia Junkie
 
Join Date: Apr 2008
Location: san bernardino
Posts: 375
Trader Rating: (1)
hassanbakar123 is an unknown quantity at this point
Feedback Score: 1 reviews
check compression. take the rail off and see if you are actually getting fuel.
hassanbakar123 is offline   Reply With Quote
Old 12-22-2012, 09:47 PM   #6
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Quote:
Originally Posted by hassanbakar123 View Post
check compression. take the rail off and see if you are actually getting fuel.
Yes i took the rail off and yes im getting sprays when the injector clicks
__________________
lscustoms is offline   Reply With Quote
Old 12-22-2012, 10:35 PM   #7
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Any way to check that the cam and crank are synced right without removing the front timing cover???
__________________
lscustoms is offline   Reply With Quote
Old 12-23-2012, 02:20 AM   #8
zerodameaon
Post Whore!
 
zerodameaon's Avatar
 
Join Date: May 2009
Location: Bay Area CA, Sutherlin OR
Age: 37
Posts: 3,289
Trader Rating: (3)
zerodameaon is an unknown quantity at this point
Feedback Score: 3 reviews
As far as I have seen your down to taking the whole front of the engine off and retiming it. Only way to be 100% sure is to do it yourself and be methodical about it. Fuel, spark and air with proper timing and you should get it to start and stay running, and you have to have all three sides of this triangle to get a fire in the first place.
__________________
Quote:
Originally Posted by MrMigs View Post
That's a one-way trip to understeer land...
Quote:
Originally Posted by BKdaMoRoN View Post
Maybe you should petition the retards who are paying 5k for an S13.

Need to adjust your idle?
http://zilvia.net/f/s-chassis/395413...-pictures.html
zerodameaon is offline   Reply With Quote
Old 12-23-2012, 08:42 AM   #9
squigy
Leaky Injector
 
Join Date: Apr 2011
Location: South Florida
Posts: 73
Trader Rating: (0)
squigy is an unknown quantity at this point
Feedback Score: 0 reviews
@ your dizzy question

I had a twin cam KA boosted with a standalone.

Long story short i had taken out the plug to the coil for safety measures, and i didnt put it back on, went to fire it up and i burn out a 300$ 4-way igniter for my standalone. so i swapped out the dizzy that was on there thinking it was the problem and it wouldnt fire up.

So if you have the original dizzy put it back on there, also if you have a twin cam ECU , put the single cam back on there.
squigy is offline   Reply With Quote
Old 12-23-2012, 01:20 PM   #10
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
its a original sohc dizzy and ecu just don't know of they are interchangeable from Mitsubishi and Hitachi
__________________
lscustoms is offline   Reply With Quote
Old 12-23-2012, 08:32 PM   #11
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
I have this exact problem right now and today I discovered it's the fuel tank so yours might be too. I have sweet tea colored gas (rusty tank) so its keeping the car from completely starting up, though, it'll try. So, pull your fuel line, stick it in a bottle and check and see what its looking like.
ronny.jpn is offline   Reply With Quote
Old 12-23-2012, 08:34 PM   #12
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by lscustoms View Post
Also what are the chances of the crank and cam not being lined up? Silver link does line up when set in tdc tho... So plz help...
sorry for the double post: but, after you try to crank the car up those links and dots wont line up. The cam and crank turn at different speeds. Turn it over by hand a few times and watch, they'll line up again.

Hopefully your mechanical timing isn't off. That = bent valves possibly.
ronny.jpn is offline   Reply With Quote
Old 12-23-2012, 11:17 PM   #13
goqr25
Leaky Injector
 
Join Date: Feb 2010
Location: 760 valle imperial
Posts: 56
Trader Rating: (0)
goqr25 is an unknown quantity at this point
Feedback Score: 0 reviews
I didnt see the maf sensor in your video. To my understanding, it has to be connected for the car to start. Good luck.
goqr25 is offline   Reply With Quote
Old 12-24-2012, 03:17 AM   #14
lscustoms
Zilvia FREAK!
 
lscustoms's Avatar
 
Join Date: Oct 2009
Location: West Covina
Age: 34
Posts: 1,090
Trader Rating: (12)
lscustoms is an unknown quantity at this point
Feedback Score: 12 reviews
Quote:
Originally Posted by johokessl View Post
take the rail off and see if you are actually getting fuel.
i took the rail off and yes im getting fuel...
__________________
lscustoms is offline   Reply With Quote
Old 12-24-2012, 06:38 AM   #15
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by goqr25 View Post
I didnt see the maf sensor in your video. To my understanding, it has to be connected for the car to start. Good luck.
No you don't...

Sent from my SAMSUNG-SGH-I897 using Tapatalk 2
ronny.jpn is offline   Reply With Quote
Old 12-24-2012, 09:52 AM   #16
goqr25
Leaky Injector
 
Join Date: Feb 2010
Location: 760 valle imperial
Posts: 56
Trader Rating: (0)
goqr25 is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by sloazz40 View Post
No you don't...

Sent from my SAMSUNG-SGH-I897 using Tapatalk 2
How so? There is no way any car that has a maf sensor will run if it aint connected. It would fire but instantly die!
goqr25 is offline   Reply With Quote
Old 12-24-2012, 10:08 AM   #17
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
Lol I assure you its not needed for a car to run. I put my buddies KA in the other day and drove it just fine without it. Ofcourse, I will put it on, but it ran, and ran pretty dang good without it. I shall send you a PM with a link to a video soon.
ronny.jpn is offline   Reply With Quote
Old 12-24-2012, 10:23 AM   #18
Ponda
Leaky Injector
 
Join Date: May 2010
Location: East TN
Posts: 55
Trader Rating: (1)
Ponda is an unknown quantity at this point
Feedback Score: 1 reviews
Quote:
Originally Posted by goqr25 View Post
How so? There is no way any car that has a maf sensor will run if it aint connected. It would fire but instantly die!
It will run with no MAF...just won't rev past 3k.

OP - sounds like you have a timing issue. Here's a quick way to check.

Remove your valve cover and rotate the engine to top dead center. The tooth should point to 0 degrees on the crank pulley. Once you are for certain at TDC...look at your cam gear. The cam notch (little square thing) should point at 12 o' clock. The cam dimple (little circle on the gear) should point to 3 o' clock. See picture:



If that's all lining up properly - check your dizzy. When you remove the cap the rotor should point to your #1 cylinder plug wire.
Ponda is offline   Reply With Quote
Old 12-24-2012, 11:42 AM   #19
goqr25
Leaky Injector
 
Join Date: Feb 2010
Location: 760 valle imperial
Posts: 56
Trader Rating: (0)
goqr25 is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by sloazz40 View Post
Lol I assure you its not needed for a car to run. I put my buddies KA in the other day and drove it just fine without it. Ofcourse, I will put it on, but it ran, and ran pretty dang good without it. I shall send you a PM with a link to a video soon.
I think your confussed with another sensor like maybe the o2 sensor. But if not, thats pretty crazy! Have to check out that vid.
goqr25 is offline   Reply With Quote
Old 12-24-2012, 04:55 PM   #20
zerodameaon
Post Whore!
 
zerodameaon's Avatar
 
Join Date: May 2009
Location: Bay Area CA, Sutherlin OR
Age: 37
Posts: 3,289
Trader Rating: (3)
zerodameaon is an unknown quantity at this point
Feedback Score: 3 reviews
They will start and idle without it, but they sure as hell won't drive worth a damn. The ECU has no way of knowing how much air the engine is taking in. The TPS is only part of that equation. Unless your buddy did not tell you he was running a MAP setup I doubt it ran good.
__________________
Quote:
Originally Posted by MrMigs View Post
That's a one-way trip to understeer land...
Quote:
Originally Posted by BKdaMoRoN View Post
Maybe you should petition the retards who are paying 5k for an S13.

Need to adjust your idle?
http://zilvia.net/f/s-chassis/395413...-pictures.html
zerodameaon is offline   Reply With Quote
Old 12-24-2012, 05:39 PM   #21
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
Ill get it. Drove it perfectly fine. I definitely know the difference between an o2 and a MAF. He didn't have an O2 either lol.

Sent from my SAMSUNG-SGH-I897 using Tapatalk 2
ronny.jpn is offline   Reply With Quote
Old 12-24-2012, 08:08 PM   #22
PureRush
Zilvia Addict
 
Join Date: Oct 2011
Location: Orange County
Posts: 893
Trader Rating: (15)
PureRush is an unknown quantity at this point
Feedback Score: 15 reviews
No MAF and the car will run but in limp mode. OP you should do a compression and leakdown test. Thats the easiest way to check your cam timing wihtout ripping shit apart. If it actually has fuel and spark then thats the next step. Trust me on this one
PureRush is offline   Reply With Quote
Old 12-25-2012, 09:52 AM   #23
ronny.jpn
Zilvia Junkie
 
ronny.jpn's Avatar
 
Join Date: Apr 2012
Location: Mobile, Al
Age: 30
Posts: 325
Trader Rating: (0)
ronny.jpn is an unknown quantity at this point
Feedback Score: 0 reviews
I'm telling you check your tank. I didn't and had the same issue as you and When I checked my tank I found this "gas" and piles of rust.
Attached Images
File Type: jpg uploadfromtaptalk1356454305726.jpg (66.9 KB, 15 views)
ronny.jpn is offline   Reply With Quote
Reply

Bookmarks



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

Forum Jump


All times are GMT -6. The time now is 06:40 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
vB.Sponsors
Copyright ? 1998 - 2022, Zilvia.net