1984 Z31 300zx. (insane amount of pictures)

Bought this Z over a month ago. Got time to bring it back home Thursday 2.6.11.
Some issues, ofcourse. Interiour is screwed together with wooden screws, roof interiour is missing totally.
MAF is dead, fuel gauge is not working at all. And some other small issues.

But hey, its chassis was refurbished 12 years ago, and its been stored for 10 years. though, the paintjob seems
to be missing some clear coating. Will have to get it painted once more after this summer.

I will be upgrading some small stuff. Like the exhaust, headers, ignition, bushings, swaybars and maybe dampers. (Theres something unknown mounted now wich actually
works)

Some pictures.

This fella greeted me when i first came to inspect the car.

I still havent found out how the previous owner and all of his creativity has wired the stereo.
ergo, No sound yet.

Extra mounted speakers.


More posts will suddenly appear.

Took the car for a spin today. Video will follow as soon as i’ve edited out 15 minutes of random driving to provoke the problem.
Went over every contact i could access easily, cleaned them up and adjusted the distributor.

New symptom. If i kill the car when the problem arises. It wont start again for 4-5 minutes afterwards. Flooded sylinders?
If i remove the fuel pump fuse and crank it twice. Then reinstall the fuse, prime the fuelsystem, it will start without any problems.

New MAF

Maf Contact. Alot of the contacts are missing their braces. I need to either get more of them or figure out a substitute.

Some of these clamps were as good as loose. Clamped them better on.

Adjusted the distributor. Problem actually improved abit.

Whats with these loops?


Taped contacts. :S Underneath the tape this contact is as good as broken. Going to solder on another contact i’ve got lying around from the Laurel projects. Should have something that fits.

This would be the cable for the Head temperature sensor i would guess. Cable is so hot its almost melting. :S Going to try to insulate the exposed cables.

oil pressure sensor? Its leaking no matter. Going to clean it up when i change oil later on today and retighten it with loctite 577.

Stuff bought

underneath quickly inspected.

Old oil drained. Old oil filter was clogged. :slight_smile:


Leaky sensor.

Shiny sensor with loctite 577 on its threads. Will never leak again.

Started to change sparkplugs with NEW NGK’s. But i’ve gotten 21mm nuts instead of the original 16mm nuts. Wich made my tools too large to even fit the sparks. :stuck_out_tongue: So i fitted the
old NGK’s that was mounted when i got the car. After proper cleaning they should work plentyfull. Im tossing the Denso plugs. :stuck_out_tongue:

day started with a proper wash and some photoshooting.





Started working on the exhaust today. Only to find out i dont have any sound dampeners lying around.
Anyway. Rear thingy had to go.

This actually became so loud that i need a sound damper before i can continue on this project. :stuck_out_tongue:
Im most tempted to just let it rest for two weeks until the pacesetter manifolds and MSA exhaust arrives.

Anyway, found this while under there.
Rear axle is leaking. Awaiting a new LSD. So im going to pluck it out then, refurbish it and make it all good again.

This needs more immediate attention.

It is quite awesome to come home from two weeks offshore to this sight. :smiley:

Todays effort

We’ll start with a picture of the passenger side of engine bay

Overview

Started, loosening heat shields

Break some bolts

Difference of each port from the original to the new one is 4mm for each port. And im rid of the riddiculous crossover.

Trial mount. Oil cooler lines are in the way of the manifold. Im going to get new hoses made tomorrow and move the entire setup.


When the manifold halted. We started working on bushings instead.

Fucking aluminium lids.

Old swaybar bushings vs new.


Right tools for the job. :slight_smile:

Caster bushings

swaybar bushings

Georg is removing old oil residue so that new leaks would be more visible.

New exhaust. Some of it. :slight_smile: hirr

When bushings were complete up front. A buddy appeared with his impreza and wanted to change his front dampers with his newly refurbished coilovers.




Then we went mad on a turbodiesel vectra.



A nice impreza image.

And a tired Robert. (me)


Thats it for today. :slight_smile:

Went shopping today.

Inspected the Vectra wing alittle closer

And he’s making a new frame for the chairs i sold him out of aluminium.

Thats it
Im unplugging the oil cooler until i can find a hosefitting that goes STRAIGHT out.

Here’s the bio prop Sir is so fond of.

What was bought today.

Made myself a non steel connection

Trial mounted it.

But its still in the way of the header.

SO.
Measurements of the “banjo plug”


The dumbshit placement of the oilfeed.

Does anyone have a slightest idea of what i should do here? im all out of ideas.

[quote=“Guillotine”]Your car is coming along really nice.

Where did you buy all that stuff for your z?[/quote]

Here and there. Wich parts in particular are you thinking of?

First
I wanted 5 bolts.

This is what i got.
4 bolts piss.

A trip to a local partsdealer fixed this.

Stupid as i am, i forgot to check the cooler side.
Will have to get more fittings like this one. I’ve already bought the new cooler. So i might
as well change it all.

BUT, the manifoil finally fits as it should.

Rejoice everyone! Just have to solve the oilcooler problem now. And everything should be
just awesome.

With the manifold and oilcooler postponed atleast three days. I went over to other stuff.

Swaybars were changed up front from the original 24mm to 26mm. From Hollow to not so hollow anymore.

Drained the rear differential to exchange its internals. :slight_smile:

Gonna leave you here for now. More will follow tomorrow. :slight_smile:

Finally got some days off work and enough time to work on my own car.

old cooler

Header on one side. <3

Old vs new. Old leaks, ergo got replaced.

Hoses mounted up. 30 bar clamped ones.

Like a boss.



Gonna let the juice i put on the connectors harden, make a bracket for the new cooler in
front of radiator and change to the LSD. Then i might fire it up tomorrow. :smiley:

Bracket didnt get finished. (Damn you georg. I need that bracket)
So i went mad on the rear wagon instead.

hate that bluecolor. Gonna paint it some other color while its off. :slight_smile:


Swaybar on its way off.


Drain brakefluid.

Removing caliper

Rubber strapped on for some reason. XD

Some wire on top of damper as well.

jacking out axle.

one of the sides completely removed.

Found some rust i really dont like at all. Gonna have to weld it up and repair it.

This is what it looks like now.



These bolts on the other side gave me some headache. I need the bolts. But i dont care about the bushings. Its near fuel lines so i dont want to
use too much heat nearby there. Any suggestions to get the bolts to loosen from bushing?

really wanna have both sides with me to burn out old bushings, blast everything and repaint it.
If you got tips to get the bushing to loose from the bolt. Post it!

Im seconds from just cutting out the damn bolt.
Gonna pull down the entire crossover tomorrow and see if i have more luck then. I’ll also be able to use alot more heat that way. Without risking setting the car on fire.

Took down the Diff to get more room to bang on the frackin bolt.




Some observers came.

Finally got sparetime and the health to work on my car again.

Tried putting a heatshield over the bushing to protect the fuellines.

Didnt help. :stuck_out_tongue:

Got pissed and took out the entire crossmember.

Burn mofo, burn!

Bushing looks like it needs to be replaced.

Had to cut some of the bolts.

problem bolt.

Got it off and burned out old bushings.


Properly grinded and measured.

New bushings.

Trial fitted just for fun.

Sendt old sleeves and a set of bushings to get new ones made out of titanium. Making some for Sir420 as well.

Bought some stash for respraying the crossmembers and arms. Two Component epoxy paint. Since its already off.

Since one of the bushings were bad here. Im burning out both and replacing them with PolyWhoreIThan

Surprisingly good result with a propane burner

Pulverise!!!

Some grinding, and voila.

Then the other side. KILL IT WITH FIRE!!!


Moved into the garage.



This one on the other hand looks like shit. Im guessing i need to buy a new bushing, install it, burn it out and then
install a polywhorithan.


Started working on the “finished” arms. taking off brakediscs and axles.

Got new axles lying around.

Lots of music, beer and good spirits. :smiley:

Sprayed the arms with some light acid solution to loosen up the old crap and get it ready for epoxy.


A friend of mines imprez rims

Cleaned out one of the garages today. This is in the middle of the cleanout

Since its -10 outside. We kept this guy working

Tried scoop on the Z.


Does not approve.

Burned some stuff

Im gonna boil this stuff tomorrow to get it prepped for epoxy paint

And we started a project.
Me and my buddy started arguing about wich substance prehibits rust the most. Im all for prepping down the metal and painting it with twocomponent epoxy.
He’s more about just painting over it with tectyl and let it be.

So we started project RUST

This is a steel plate.

We painted one side with tectyl

And the other side first with acid primer and then epoxy primer. Three layers.

Cheated a bit on the hardening period. :wink:

And we painted a transmission like this to eventually after its hardened, check wich is most scratch proof.

The idea behind this test is to submerge the plate into sea water to see wich side rusts first.
Should be interesting enough.

We are giving it 5 days to harden properly.

Done this so far.



Some shit left. This has been buffed off and cleaned properly.

This is what it looks like now. 6 layers of epoxy paint. Gonna leave it for 5 days to harden properly.




Frontfanger fjernet


I hate the big regplate

Holes marked

Cooler mounted


Engine is now all done. A buddy dropped by.

Got new inner sleeves made for trail arm bushings.

This is what i got done today. :slight_smile:



Cool story bro :sunglasses:

anyway that seems like a sh*t tonne of work you’ve done there, how long have you been workin’ on it?

Freaky

on and off for about 5 months. only driven her for 1 week in total since i got her. When i come home from work now, i got my new shims for the LSD and i can finally drive her and listen to her lovely roar.

Woah, yes, tonnes of work! I would fail on the first attempt to unscrew anything xD
Ahh Photomatics HDR, my eyez, zey bürn! xD

Great thread, and love the paint tests! Great Idea

Glad to hear that. Thats about the first positive feedback we’ve gotten on it.

This is after one month in the sea. It’s been there for two months now… But im offshore. Willl update when i get back. :wink:
Carabina hooks are dying fast. :smiley:

epoxyside still looks good though. We got lazy when drilling the holes for the hooks. And didnt treat them. So dont mind that part.

I cant really tell if the Undercarriage tectyl is giving up or not.

Wow! That looks like a huge load of work. The car seems to be totally worth it though! Good luck with all the work, and enjoy your ride!

Lots of parts arrived while i was at work.
Shims <3

Differential clock polyurethane mount

Kaminari 3 part wing

assembled the LSd mount

Then i thought i wasnt going to do much more and wait for automation. But then the power started going, i do have a UPS but without internet i got bored.

Shimmed the new LSD up to 0.15mm backlash. Manual wants 0.13-0.18. So im happy

Cleaned everything properly

And torqued it up. Manual wants 68-72nm. Im running 90nm.

Then the power came back and i went back in. :slight_smile: Glue it together and maybe get it mounted tomorrow.

Pressed the bushings in place

Mounted Poly Diff mount

Old crap

Properly mounted

Heeeeeeeeeeeeeeeeeeeeelp. :smiley:

Diff glued and mounted.

Mounted properly.

Left it like this tonight

The innersleeves i got made for the bushings. Two of them had a too small inner diameter.
So im getting those drilled tomorrow.

NIce 8v Turbo… Is that an Original or a self made ?

Here in Germany you can buy only 16V (C20LET) engines in that car.

Excellent thread. Damn, I wish I had your abilities! :mrgreen: I played around with my last Mazda but nothing on this level (CAI, Swaybar and a short shifter, that is it). Nice work, very impressive :smiley:. I always wanted an old school Toyota Celica Supra (~85 model), but my lack of mechanical ability has always put me off!

[quote=“dervectra”]http://img.photobucket.com/albums/v331/gnugfur/diverse%20mekk/DSC_0425.jpg

NIce 8v Turbo… Is that an Original or a self made ?

Here in Germany you can buy only 16V (C20LET) engines in that car.[/quote]

Thats an original 8v turbo. :slight_smile:

Its all about getting started, having friends to help out and teach away their knowledge and alot of trial and error. :slight_smile: When i started out with cars 10 years ago i didnt have a sligtest clue of what the hell i was doing.

This pic pretty much explains me 10 years ago.

but today, we’ve build alot of weird cars. Some record breakers and some less impressive creations.
now im all done with plastics and the glory of having a 400hp car. I wans something that works and something i can drive every day.

My first car after its rebuild. I had no clue what i was doing, but as long as you pump enough money into it. It has to turn out allright. Right?

I was so stupid back then that i actually cry today when i think about it.

:slight_smile:

Good ol’ days.

I remember this from Z31Performance…but then you deleted all the posts you made about the car.

Looks good though.

[quote=“Z31NA2T”]I remember this from Z31Performance…but then you deleted all the posts you made about the car.

Looks good though.[/quote]

Yes,
I figured 2 pages of flame because of the size of the registration plate was enough for me to not share anything there.
Im still on z31.com though.

[quote=“gnugfur”]

[quote=“Z31NA2T”]I remember this from Z31Performance…but then you deleted all the posts you made about the car.

Looks good though.[/quote]

Yes,
I figured 2 pages of flame because of the size of the registration plate was enough for me to not share anything there.
Im still on z31.com though.[/quote]

They can be stupid sometimes…



youtube.com/watch?v=8dF5NcerksA

Mounted up new exhaust. And one of the trail arms. Bolts for the other arm were so broken that i ordered new ones. :slight_smile:

youtube.com/watch?v=KGDwjGi_tAs

Awesome thread! I love how in depth you are going with it. Looks like a great project.

I wish I had documented what I did with my '69 Grand Prix as well as you are before I sold it. Awesome, awesome, awesome!

Your Z is turning out great! Good work!