www.86garage.com

My s30z (S31)







Spec:
Weber 40DCOE + SK adapter
432 Exhaust
SSR mesh 15x?
Fiberglass hood and hatch
After market Lip, spoiler, and ZG flares

Need body work (-_-)

More pics

pretty nice there where a bunch of these up in tulsa and some of them where pretty insane

i know a girl that has a baby blue one down in sugar land ill take pix of it next time i see it.

damn, nice Z man :D

damn.... very nice!

It's gonna be a long project
Carb rebuilt 1/19/08

you need to do the twin cam setup in that other thread

Update:
The tripple weber been rebuilt. It run fine but there is fuel dipping from the inlet side (-_-). After that I didnt start it at all. Now it won't start. (P_P)
New 5 months ago ( I only drive it less than 20 miles after I rebuilt the carbs Just start warm it up feed the battery like one time a week)
New spark plug Gap 0.44
New fuel filter ( Get dirty very quick)
New starter
New Battery
Rebuilt weber new gasket

after I have problem I put these new parts
New Wire
New Cap
New rotor
New Coil ( Accel universal 12v)


I set TDC and rotor point to cylinder#1 ( valve cylinder 1 fully close piston go highest)
Fuel pressure at 3.5
spray some fluid start
crank it up.
Sound like one cylinder fire up and gone.
Check all plug have spark.

I just order a new fuel pump Carter P4070
will see what happen.
Any suggestion? Help me!!!

Thats a heck of a prob, but it sounds ignition related. Are FOR SURE you have spark? ex. pull a plug and watch it spark when turned over.

Otherwise I would say the dizzy is misaligned, unless its like one of those that plugs into the oil pump and it can only be put in 2 ways.

It has 1981 280zx distributor which is an electronic one. It has electronic module on the side. I hook it up like this


As for the spark I test with this testing light. The light on every cylinder.

I actually pulled 2 plugs out and see the actual spark. I will test all plugs later just to make sure.

As for the distributor It might be misaligned. How can I re align it? Can I just turn the crank to TDC and turn dizzy to point at cylinder one?

What would happen if the electronic module is bad?

(-_-) . . .

would this help?


also, found this:
"ENGINE TIMING
This is the #1 problem on newly rebuilt Z motors: the engine cranks, with backfires out the carbs/airbox, but won't start. This because you have the distributor oil pump shaft 180 degrees off. I did this myself on my first rebuild, it's very common. There's some confusion on the proper method, this is the secret to getting it right:
-Set the engine to 0 TDC on the front pulley.
-Open the oil cap and look at the front 2 cam lobes, they should be pointing up. If they are down you need to rotate the engine once more to 0 TDC.
-Now at 0 TDC, with the front two cam lobes pointing up, the distributor rotor should be pointing at 9'ish o'clock. If the rotor is at 3 o'clock then you put the oil spindle in 180 degrees off.
-In other words: At 0TDC with the cam lobes up....the rotor tip will always be at about 9-10 o'clock if the spindle is in properly.
"

credit goes to Mr.G from the ZClub.net and Bryan Little from DatsunZGarage.com

Thank you dr. I already checked the TDC. I actually opened the valve cover, reinstall the dizzy just to make sure it's at TDC. Hope less. . . (P_P)

Damn.

Is the timing on the cams set right? If the dizzy is like the one on my 4ac, its driven by a gear on the end of the cam. But like I said earlier, it appears you can only have the dizzy right the 1st or 2nd time because of the flat oilpump drive design.

Im stumped.

Devil_Z wrote:Thank you dr. I already checked the TDC. I actually opened the valve cover, reinstall the dizzy just to make sure it's at TDC. Hope less. . . (P_P)

well, install the p4070 when you get it and see if that solves the problem. we'll wait to hear back from you.