Wodihor

Well I think that the apex seal finally bit the dust. Sometimes I have power sometimes I don't. it runs really rough when it doesn't have power, like i'm running on one rotor or something. give it some gas, and sometimes power comes back and sometimes it doesn't.

What do yall think?

-xlr8planet-

iTrader: (3)

If it comes and goes, probably is not a busted apex seal

Wodihor

Bad primary?

Andrizzanizz

iTrader: (1)

how does power come and go. like when you get on the gas or what?

Wodihor

Well it was when I started the car, it was a little rough. If i held the gas til about 2.5k or 3k It would kick in and run better. Today I was driving down the road and it was sputtering on me a little, but it was just a sputter.

I thought that I might be a little low on gas, and not really trusting gauges all the way I pulled over and got some gas. Well it wouldn't crank back up. I then went though a bunch of things. pulled the plugs and such put a small amount of aft and turning the motor my hand with plugs out. you know all the things you try and run though when the car doesn't crank.

well after some time and a few guys helping me out that wanted money, I was in the hood, it started and would only hold idle at 2.3k. So I needed to get to work, I adjusted the Idle screw/cable and started to take off. It used to get power when I pushed on the gas, now it doesn't.

Some time It has power now and other times it sounds like it is starving for gas. It is not back firing at all, I guess if it was a bad apex it would also be dumpnig gas into the exaust system as well.

I hope that helps some.

t_g_farrell

iTrader: (1)

Check your fuel filter and pump. Then move on to the carb itself. Sounds like a fuel issue.

RXnos1200

iTrader: (24)

check your ignition system; coils, ignitors and make sure you have consistent spark on all 4. good luck.

dbragg

iTrader: (7)

check your compression. if you need an engine or want a spare, come get mine. we can pull it this weekend if youd like.

Jeff20B

iTrader: (13)

Bad gas or water in the gas.

mxd

iTrader: (1)

hrmm.. intermitten power...

what i do:

1. Check omp or mop (easy way. have friend hold lever waay up at idle, watch primary barrels in carb, you can see the oil bead up, if you see beading up on the wall of the barrel on 1 barrel and not both barrels, then you have an OMP line or OMP mechanical problem). Or air in the line.

2. Make sure you do not have a carb jet plugging up, or other visible issues (float chamber, throttle cable, other junk you can see stuck or missing something)

3. Sound check on the vaccum lines, and a twist and press on all fittings, clean the lil filters on the rats nest, also a lil tapping on the junk on the RHside of the carb, to see if it farts or twitches (bad emissions/afterburn/otherjunk) i use a medium screwdriver and tap stuff with the plastic handle gently, to see if it affects anything with a lil baby tap.

.. if your omp mop is the problem then premix, and hope for the best.
if carb is plugging up, search around and try one of the millions of ways of cleaning without retuning and rebuilding.
.. if its a vaccum problem isolate and fix i guess

gl2ya

Brainmatter

I'm leaning towards the guys saying ignition problems. Pull the cap and check for carbon tracking or hairline cracks on the inside of the cap. check the rotor for stress cracks while your in there as well. make sure it is all clean and dry inside the cap or you will have problems, especially on humid or rainy days. A test lamp is a good way to check your plug wires. Just have the lead clamp grounded and run the probe over the plug wires, if there is a bad wire or boot, it will ground through the test lamp and missfire.

Wodihor

where does one get a test lamp at?

Brainmatter

Any auto parts store will have a 12 volt test lamp. Get a decent one, it will be your best friend if you do any electrical work whatsoever.

Jeff20B

iTrader: (13)

Oh my.

It's really the first piece of test equipment you should get. Go to your local auto parts store and ask for a test light.

Heh we posted at the same time.

Brainmatter

Yeah, I think we may be in trouble here.....

Wodihor

I know it is not the clearest pic, but what do yall think? It looks like 2 of the tips inside the cap are slightly melted.

If i need to replace it, i'm sure I do. what would cause this so that I can fix the cause of this problem so it doesn't happen again.

Jeff20B

iTrader: (13)

Get a high quality cap and rotor set. You can tell whether it's high quality or a run of the mill cheapy by either brass contacts or aluminum contacts on the inside of the cap. Brass = high quality. The rotor contacts can be brass or some other metal, and either smooth or with bumps, as in your picture.

Kentetsu

I recently had a sticking apex seal, thought my motor was dying. I dumped a full bottle of Seafoam and one bottle of MMO into half a tank of gas. Smoked like a bitch, but after a few runs at an autocross she was smooth as silk once again. Might be worth a try if it turns out not to be an ignition issue....

Wodihor

thx for the feed back yall.

I ran a can of seafoam in it a while back. I have not tried MMO yet, I have been running Castrol 2-cycle outboard in the tank, about 4 oz per tank. I'm not sure that is the right mix though, so sometimes I run 8 oz per tank.

I had the mech look at it here at work and we tried a few things. He pulled the wires from housing 1 and no change in the motor at all. put them back on and had a change. So really not sure.

He also revved up the motor some and stuffed a towel in the primaries. Said that it would suck the gunk out of the jets if it was a little clogged. It seems to run a little better after doing it 2 or 3 times. I really will not know until I try and take it home this after noon.

I wonder if I would use direct fire, or a better leading coil.

Kentetsu

Probably not a bad idea to throw a 2nd gen coil pack on there. At least that would bypass the cap/rotor. Takes like five minutes to hook it up...

Wodihor

Well I got it home. Was a slow go until I learned how to drive it.

The more RPMS the more gas I could give it. It took a long time to get to hwy speeds around here though. 1st was easy... just ease on the gas and with would rev out. Then second and so forth. If i punched the gas for any reason it would choke down. as long as I was easy on it though and short stroke pumps of the gas peddle I was all good.

I'm not sure what to think of it now. Fuel? Air? I took the carb off of the 83. I'm going to try and strip it down like the other one. I don't know if it will help or not. More than likely would solve a fuel problem.. the other carb looks really clean.

Kentetsu

Make sure you have spark on the leading plugs. Otherwise, you're probably looking at clogged jets...

Wodihor

I went over some things with Ray last night. checked out a few things and still didn't get it running. I think that I was tired.

Today I came home and just went right to work. Pulled the plugs again and cleaned them up.. checked for spark again just to make sure. WTF!?! It fired yesterday. It appears that I had a plug that was grounding to the motor and not firing. I don't know where it was to start with but that I able all I can find right now. The car will now idle around 1k when it gets warmed up. I really need to get that choke cable working again.

At any rate, ATFed it really good, and cleaned up a plug from the GS. Put it all back together and still no go. Bah!

Started looking for the carb that was on it. I had left it sitting on the ground by the GS. I hate the children in the apartments I live in. They picked it up the tossed it into the woods. Bent the return up, so I changed that out with the other carb. Okay, lets try this again. Damn! battery dead... charge the bat, all good lets go!

Car fires up after a little while and seems to be running better. I still get a little sputter, but it smooths out when it warms up. I have always had some sputter I think.

So it wasn't an apex this time.. I keep crying wolf because I"m stupid. One day I will not cry wolf.

Brainmatter

Glad to hear you got it going!

Wodihor

yeah it is going... but it is rough. I is good at hwy speeds but will not hold a steady idle now. guess i will keep tinkering with it.