ok let me start over

[1 Bad Datsun]

I'm having a new issue with the rear end hopping leaving 1st gear. I don't know if it is the clutch or what. I'm goin to do clutch soon since it don't grab anyway. Don't get me wrong Z Bum your help is appreciated greatly i just wasn't having a good night finding out all these new problems.

But as goes for my problem with the car shuting off for these split seconds is really getting me angry. It's like a half a second thing its where my car iz slowing down in second mostly in first gears about 1500-2000rpms and u hear the car make a small "pop" from the muffler. You can feel the motor hesitate and the lights go off but so fast they don't turn off so they dim and my radio resets /w my dash lights dimming as well.Does anyone have an ECU for a 86 N/A. I'm having trouble finding one that i know will work.Any thing will help me wat this point i don't want to sell the car,but its comming down to it cause i just lost to a civic(i wasn't really gunning it but if i did i still would of lost)and the car looks to perfect to be losing to a civic.I was goin to join a Windy City Nissan Club,but this sight is a little more helpful.If any one lives in Chicago land would help to.

Thanks

[evildky]

IACV idle air control valve, is this hapopening when you let of the throttle completely and rather quickly? you can adjust the throttle out a touch and see if this helps, sound like the car is starving for air and the pop from the exhaust is the rich mixture burning as the valves are opening

[1 Bad Datsun]

No,its more like say your slowing down for a stop sign in 2nd or even 1st gear (no foot on the gas) the motor does a very quiet but noticable pop then the motor stumbles between 1500-2500rpms and everything goes off,but like i said its all in a blink of an eye. I checked out my IAC valve its pretty clean.Can it be my timming?Whats stock timming soppose to be at? I took a timming light to the crank and its so overly advanced that if i bring it back to 20btdc car runs like shi*.timming belt was replaced tho.The timmingis at a little more that the lines on the crank to the "right"so that would b overly advanced?

[winez31]

thats typical z i have like 4 friend with z31 and there all did that my friend ben changed his maf and it fixed it my brother changed his ecu and it fixed it mine just stopped doing it

[AZ-ZBum]

I'm having a new issue with the rear end hopping leaving 1st gear.

Hopping? What do you mean by this? And any time you leave 1st gear? Is it more of a thump? Or are your tires bouncing? Or is the rear end coming off the ground?

I don't know if it is the clutch or what.

The rear end wouldn't hop if it were the clutch.

I'm goin to do clutch soon since it don't grab anyway. Don't get me wrong Z Bum your help is appreciated greatly i just wasn't having a good night finding out all these new problems.

No worries dude.

But as goes for my problem with the car shuting off for these split seconds is really getting me angry.

Engine shutting off is a signal that something is out of tune with the engine. Most likely, you're getting too much fuel and not enough air.

It's like a half a second thing its where my car iz slowing down in second mostly in first gears about 1500-2000rpms and u hear the car make a small "pop" from the muffler.

Backfiring because there is too much unspent fuel in the exhaust.

You can feel the motor hesitate and the lights go off but so fast they don't turn off so they dim and my radio resets /w my dash lights dimming as well.

What all have you done in the way of a tune up? I really can't see any reason for there to be a complete shutdown other than maybe a bad alternator, battery, battery cables, and/or ground. And all of these problems at the same time.

Does anyone have an ECU for a 86 N/A. I'm having trouble finding one that i know will work.

Classifieds, junkyards, other Z message board classifieds, ebay, etc.

Any thing will help me wat this point i don't want to sell the car,

I still don't see how the ECU can cause any of this. I know it can't. There is no connection between the ECU and the radio. None whatsoever.

but its comming down to it cause i just lost to a civic(i wasn't really gunning it but if i did i still would of lost)and the car looks to perfect to be losing to a civic.I was goin to join a Windy City Nissan Club,but this sight is a little more helpful.If any one lives in Chicago land would help to.

Thanks

[AZ-ZBum]

thats typical z i have like 4 friend with z31 and there all did that my friend ben changed his maf and it fixed it my brother changed his ecu and it fixed it mine just stopped doing it

Please go back to school and pay attention in English classes. There are these things called sentences that are used to convey thoughts and ideas. You should try it sometime. You won't appear to be only 8 years old.

[1 Bad Datsun]

Please go back to school and pay attention in English classes. There are these things called sentences that are used to convey thoughts and ideas. You should try it sometime. You won't appear to be only 8 years old.

Honestly to tell you the truth i don't give a Fuc* about how i'm writting on here.I don't care how you want to respond back.Its not like this is an important site like Stangnet.com. I Shoulda stood with the mustang...

[AZ-ZBum]

Honestly to tell you the truth i don't give a Fuc* about how i'm writting on here.I don't care how you want to respond back.Its not like this is an important site like Stangnet.com. I Shoulda stood with the mustang...

I didn't realize your name was winez31 as well as 1 bad datsun. But if that's how you want it, so be it.

[winez31]

haha if u dont like my pst dont read them its simple

[1 Bad Datsun]

My fault. I didnt read it quite right. i thought you were talking to me. You are all about that grammer that i thought screwed it up again. I'm just here to get this damn car running properly. I just pulled the transmission yeasterday and am awaiting for a flywheel. I also bought an Extedy Clutch. Is there an aftermarket intake manifold for the car?or do I have to portmatch? If thats the case I do very good work and anyone that wants to have there manifolds ported just tell me. I use to do Mustang gt-40 intakes and Stock 5.0 intakes upper and lower. I can do heads also but i would need a gasket to gasket match to your needs.HaPPy 4th Of JuLy!!!!

[1 Bad Datsun]

oh ya bro.how to i lean out this car.Or even get a air fuel gauge on it to find out what my problem is.i pulled a plug on the car actually a few plugs and it seems to be burning fine.Do you know of anyone in Chicago to tell me whats goin on with my ride?

[1 Bad Datsun]

Fuc* i forgot to mention the hopping stopped, but there is a bad thump when i slam 2nd please tell me what that is thats kinda screwing me on racing cause i gada ease 2nd into gear, but its more of a bang or a thump but loud wasn't sure if rear end was goin or what

[evildky]

isn't ultimate Z near chicago? you might want to try and hook up with your local z car club : zcca.org, they'll know of the reputable experienced shops in your area

[wa-chiss]

does the thump happen as soon as you let the clutch out. if so i maight be a motor mount. But then it sould do it every gear. Is it only in 2nd gear?

[1 Bad Datsun]

Ya man,i'm gana try'n join Windy City Z. I forgot where its at,but its around Joliet.

[1 Bad Datsun]

I don't believe its a motor mount. I can dump first and it will b ok,but when i slam 2nd gear the rear end or somwhere in the back makes a loud thud or thump. This is the most of my problems so i need this fixed the most.HELP!thanx

[evildky]

you check for play in the driveshaft u-joints? hoz about the cv shafts? how are the rear crossmember bushings? those things can allow a lot of movement

[1 Bad Datsun]

I just checked the U Joints.there is no play,but how do I check the CV Joint?I'm guessing there original so thats over 20 years of beating so they could be bad.How much would a couple axles cost for the car?I checked and I can't just get the CV Joint like a Probe I had.They said I have to buy whole thing.

[evildky]

I seem to recall the z31 turbo cv shafts were around $60 each so not bad, as for checking them, they should be pretty tight, if you get much play at either end of the shaft it's bad (insert joke about shaft play here)

[wa-chiss]

lol . i got some jokes but ill just think them and not write them.

[1 Bad Datsun]

Shaftplay....Any way i didn't seem to feel any "shaftplay" but what else can be the cause of the loud noise the rear end makes when hitting second. If anyone else has this problem or had feel free to post cause its driving me crazy easing it into second.

[evildky]

you check the rear diff mount? hard to diagnove over the interweb just support the thing and start tugging and pushing and pulling on everything till you find something moving?

[1 Bad Datsun]

I will try this in a few minutes..Ill post back once i find out a little more. Also can i make this car fast and keep it N/A?or does it have no hope,but to look cool.

[SHIFT_Z]

I've gotten a couple 'thumps' going into 2nd sometimes. They aren't consistant enough for me to be worried though.I'm convinced its a bad syncro in the transmission, but I may be wrong.

[1 Bad Datsun]

But its not a little Thump its more of a bang!feels more at the rear end then in the transmission or could it be it squats so low it bottoms out?

[winez31]

its a diff mount mine did the same thing no doubt its a diff mount

[1 Bad Datsun]

$How much was it?$

[winez31]

make an aluminum one i made my own i think az has a link on how to make them

[1 Bad Datsun]

Damn man your right that thing is shot....Can you get me that Link on how to make it,but there are rubber bushings on it or do you just make it with no bushings?i gada see how you make it.If you can get me that link it would be much appreciated.

[winez31]

just make it without bushingshttp://az-zbum.com/modification.solid.diff.mount.shtml