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#41 wayno

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Posted 18 February 2011 - 06:52 PM

Make sure the two connections to the matchbox from the coil are not loose. The engine moving around can loosen them, at least thats what happened to mine. wayno

 

 


#42 banzai510(hainz)

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Posted 19 February 2011 - 10:25 AM

72RaceReady

make sure the dizzy just isnt plane worn out. Like alots of side wiggle on the shaft.

you sure the timming is good on this? have you used a light? if its erractic at idle then soemthing is wrong.

The Accel Super coil is a .7 ohm coil. But I heard they can get hot if running a matchbox as one guy with a 280zx told me. But Bertvorgen on the realm runs his just fine with a Matchbox. So I dont know.
Just want to make sure your just no running out of time if your dizzy is off.

Maybe the module is going bad. They is a resistance ck for thes but I dont have the specs.
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#43 72RaceReady

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Posted 19 February 2011 - 10:51 AM

i havent used a timing light on it but i havent moved it from the position it was runnung fine in

all i did was switch the cap rotor and coil i haven measured any of the volts or any of that stuff i will do that today
does it sound like matchbox failure i switched both wires out to the coil from the matchbox and all the connections are tight and secure

some dude in tolleson is selling a matchbox dizzy complete for 125 i wanna pick it up sould i?
or coul i use the msd box to bypass the module banzai you said those msds suck so i kinda want to keep the matchbox but if i could bypass it for less money and have a hotter ignition that would be good too

i gotta try and get it fixed today its my dd lol thanks guys

#44 datzenmike

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Posted 19 February 2011 - 11:12 AM

i havent used a timing light on it but i havent moved it from the position it was runnung fine in

all i did was switch the cap rotor and coil i haven measured any of the volts or any of that stuff i will do that today
does it sound like matchbox failure i switched both wires out to the coil from the matchbox and all the connections are tight and secure

some dude in tolleson is selling a matchbox dizzy complete for 125 i wanna pick it up sould i?
or coul i use the msd box to bypass the module banzai you said those msds suck so i kinda want to keep the matchbox but if i could bypass it for less money and have a hotter ignition that would be good too

i gotta try and get it fixed today its my dd lol thanks guys


What you really should do is start your own thread on this so the answers aren't confusing to the original poster of this thread. If you have a 510 try the 510 section or Electrical. If you want, start a Project thread and discuss you problems there.
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#45 banzai510(hainz)

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Posted 21 February 2011 - 06:41 AM

B) matchbox goes to + coil
C) - coil.

use a EI coil(79 200sx ) with a matchbox and bypass the ballast resisitor


this is a EZ fix.
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#46 skyblue

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Posted 21 February 2011 - 08:00 PM

Update.

finally got a new coil. went with the pertronix flame thrower 3 ohm . swapped it out this morning then drove to sonoma and back and she was running great. then about an our ago i was at the mall parking lot and she died. but started back up. then stuttered a bit on the freeway. ugh!:angry: I've never had this problem before and this is my 5th datsun. but i'm not very good with electric. I've got the wiring diagram and the only thing behind the coil is the fusebox. could a faulty fuse box be the culprit?

#47 banzai510(hainz)

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Posted 22 February 2011 - 07:12 AM

Dude we told you to buy a stock 79 200sx coil.
You putting a 3 ohm coil on there is good for a stock set up on a Point system. Otherwise you could have used the coil you got & the ballast resisitor and have the same out put as you have now. as a point coil is 1.6 ohms and the ballast is 1.6 ohms so a total of 3.2
The Pertronix is 3 ohm is design to use with Pertronix as is needs a high resistance of around 3 ohms. 12volt divide by 3 ohms is 4 amps. more than 4 amps it could POP.

the 79 coil is a .7 ohm and is designed to run on 12-14volts. and the match box as you have it hooked up.

anyways I dont think its a coil proplem now as its still happening.


Flame Thrower dont mean Bigger spark!!!!!!!!!

Find some metal heat resisiant tape and cover that Blk module and maybe add a ground wire to the dizzy to the pedastal

Fuse box????? just replace the fuse with a new one. Matter of fact replace all of them with the correct one just for maint. sometimes the ends break off due to age and vibration.
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#48 skyblue

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Posted 22 February 2011 - 10:04 PM

ah dang. i didn't realize that. thanks for the schoolin'.

it dont? damn it i thought it was. :confused:

i'll try the ground. what's the pedestal?

thanks

#49 banzai510(hainz)

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Posted 23 February 2011 - 06:51 AM

Pedastal = distributor mount with the tang that has the 10mm hold down bolt. also known as dizzy mount.

ground the case of dizzy to the dizzy mount(pedastal)


I wonder if you go to Radio shack and buy a bottle of quick freeze and spray the module whn this happens if it goes away.

maybe take module off and clean the 2 connections there. the grn red wire.
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#50 burrito213

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Posted 23 February 2011 - 08:09 AM

nice! :cool:
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#51 skyblue

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Posted 23 February 2011 - 11:51 AM

Pedastal = distributor mount with the tang that has the 10mm hold down bolt. also known as dizzy mount.

ground the case of dizzy to the dizzy mount(pedastal)


I wonder if you go to Radio shack and buy a bottle of quick freeze and spray the module whn this happens if it goes away.

maybe take module off and clean the 2 connections there. the grn red wire.


where does the other end of the ground to the pedestal go?

so the distributor affects coil spark?

i would try the quick freeze, but it usually starts after it dies.

#52 banzai510(hainz)

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Posted 23 February 2011 - 11:58 AM

SELL THIS PROPLEM TRUCK TO ME FOR 350$

FROM "DIMEQUARTERLY"



Quick Tech Tip: Ignition Problems - Grounding Datsun's Breakerless L-Series Distributors
By Kelvin Dietz

If you haven't already done it already, make sure you have your breakerless distributor grounded to the chassis. Datsun originally provided a .250 male spade connector under the vacuum can screw for grounding. Use it. Yes, I know it's an aluminum case bolted to an aluminum pedestal, which is all firmly attached to other metal bits. Why would you have to add a ground wire from the distributor to the chassis? I'm guessing Datsun did it for a reason and I've fixed three cars with odd electrical problems, including one of mine that got by with no ground wire for 3 years.
A few days ago that car was running badly again. It sure felt like the same problem - tach was jumpy... missing all thru the rev range - but we'd just added a ground wire a few weeks earlier!

We pulled the dizzy and swapped black boxes. I've honestly never had a black box go bad. Dozens of these distributors have gone thru my garage. It seemed I finally had a bad one. Swapping the black box fixed the problem.

I took a look at the old box sitting on my bench. The back of it was very dirty and the aluminum quite oxidized - about what you would expect after 25 years. We decided to pull the distributor back out of the car and clean the mounting area on the distributor as well as the back of the original black box with a wire brush. We then reinstalled the old black box and buttoned the whole thing back up. And guess what? The cleaning worked like a charm! The car ran great with all of the original parts.

My guess is most of those "dead" black boxes aren't. That box needs a good ground and after all those years there is enough corrosion to lose that.

Tach jumping? Car running like crap? Give it a try. It just might be the answer.
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#53 skyblue

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Posted 23 February 2011 - 01:25 PM

[quote name='banzai510(hainz)' date='23 February 2011 - 11:58 AM' timestamp='1298491139' post='432853']
SELL THIS PROPLEM TRUCK TO ME FOR 350$


haha. 350$? aw man. :P

she hasn't pissed me off that much yet. i'm gonna stick this one out.

#54 dat521gatherer

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Posted 24 February 2011 - 02:17 PM

most have a male/spade connector for a ground as seen on the left by the vacuum advance
Posted Image

here is my set up. i recently went through and replaced all my female connectors cause i had a bad miss from carbon tracking do to unshielded connectors. fixed the miss right away.
Posted Image

#55 skyblue

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Posted 24 February 2011 - 10:53 PM

mine doesn't have it.
Posted Image

thanks for the pics. they really help. i totally grounded it that wrong. i'll redo it as soon as it stops raining. no garage or carport.:(

#56 banzai510(hainz)

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Posted 25 February 2011 - 06:33 AM

maks sure your wires are correct
B goes to + coil
C to neg coil

ground it!!!!! 10min job.

If raining get a trash bag as your rain jacket.Better yet buy a Gortex one cause these are 40 year old rigs and get used to working on them on the side of the road
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#57 wayno

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Posted 25 February 2011 - 10:33 AM

My 40 year old rig always makes it home before i have to work on it, only once it didn't make it, that stupid dogleg transmission was the reason, I guess I deserved it, using a light duty tranny in a heavy duty truck. wayno

 

 


#58 banzai510(hainz)

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Posted 25 February 2011 - 01:37 PM

Wayno
Not to thread hijack but My rigs always make it home. But all are L motors. They havent really broke hard in a LONG LONG TIME. Dome a headgasket maybe ayear or year and a half. but that is not a hard break for me. 3.5- 4 hrs I was rolling again.

Sky
I swear the top part of the T on a matchbox was the B side
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#59 skyblue

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Posted 25 February 2011 - 01:52 PM

ok so i grounded it. cleaned the outside of the module and connectors. will go run some errands now.

fingers crossed.

#60 skyblue

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Posted 25 February 2011 - 01:54 PM

Wayno
Not to thread hijack but My rigs always make it home. But all are L motors. They havent really broke hard in a LONG LONG TIME. Dome a headgasket maybe ayear or year and a half. but that is not a hard break for me. 3.5- 4 hrs I was rolling again.

Sky
I swear the top part of the T on a matchbox was the B side


really? i read here: http://datsun1200.co...atchbox_Testing
that its the stem of the T.

how can i b certain?