Nissan/Infiniti Tech SR20DET? RB26DETT? VQ35DE? What's it all mean? Find out here!

Attn: 240sx Troubleshooting Gurus, Help needed

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Old Apr 12, 2007 | 07:17 AM
  #21 (permalink)  
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Originally Posted by dan
fouled plug just means its so covered in soot and shit that it wont fire well, or at all. luckily its not a "bad" thing, its just therye not working.

my call is timing. its one of those things that if its not perfect it wont work lol.
Thats what I always thought a fouled plug was, but from what I've heard from people, it could have been something else, or at least thats the way my fantasical brain works...
would that happen if it was running lean for a while (not sure how long but several miles at least)

I'm thinking timing issues too, but everything seems to be were it is supposed to be. The cams point away from each other, when you line the marks up on the crank pulley. And according to my FSM and the pictures I can find online, I'm setting the distributor correctly.
I hope this is something obvious that I'm just over looking.....
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Old Apr 12, 2007 | 07:19 AM
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Originally Posted by Durdan
just bc you have it at the second mark to the right doesnt necessarily mean its at TDC. the cam lobes need to be facing away from each other to be at the correct TDC.

I don't think I realized that.... now that you point it out, it makes sense i think.... it would be TDC of #1 every other time it lined up right? That means that I might be setting the dizzy at TDC of #4?
I didn't think the ratios would let that happen, but maybe i missed something.
thanks, i'll double check that in a bit
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Old Apr 12, 2007 | 12:35 PM
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Originally Posted by norachelhere
I don't think I realized that.... now that you point it out, it makes sense i think.... it would be TDC of #1 every other time it lined up right? That means that I might be setting the dizzy at TDC of #4?
I didn't think the ratios would let that happen, but maybe i missed something.
thanks, i'll double check that in a bit

yea...you need TDC on the compression stroke. There is TDC compression stroke and TDC exhaust stroke. Take out the all the spark plugs and put the plug wire in #1 cylinder (w/out spark plug), and turn over the crank(better by hand) when the plug wire pops up your on the compression stroke, after that just set it on TDC and recheck distr. Hope that helps
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Old Apr 12, 2007 | 01:01 PM
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Originally Posted by KnightDrifter
yea...you need TDC on the compression stroke. There is TDC compression stroke and TDC exhaust stroke. Take out the all the spark plugs and put the plug wire in #1 cylinder (w/out spark plug), and turn over the crank(better by hand) when the plug wire pops up your on the compression stroke, after that just set it on TDC and recheck distr. Hope that helps
thats a nifty little trick...

I have to wait for my tools to get here, they are in the back of my buddies hatch. then, i'll be able to check a few things, double check the dizzy and get back with you guys on the status
thanks for all of help
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Old Apr 13, 2007 | 07:48 PM
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Originally Posted by norachelhere
I am gonna try that in a little bit. I didn't do it last night cuz it started raining, i didn't think holding a spark plug while being dripping wet was a good idea...
the fun part is when you have a nice big MSD setup and get hit with it LOL now that's FUN LOL I meen what a small heart murmur between you and your car LOL it's like a defibulator
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Old Apr 14, 2007 | 12:23 AM
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+1 with taylor

More helpful hints for timing:

Remove the valve cover and make sure the cam lobes are facing away from each other.

Line the marks on the distributor up with each other, and insert into the timing cover.

Look down the timing cover with the valve cover removed, and make sure the marks on the distributor are STILL lined up.

I have noticed that you typically have to slighly offset the marks from each other so that when the teeth from the distributor engage the teeth from the timing chain idler pulley, The marks will line up.


Hope this helps!
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Old Apr 14, 2007 | 05:41 PM
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Originally Posted by 40ozCasualty
+1 with taylor

More helpful hints for timing:

Remove the valve cover and make sure the cam lobes are facing away from each other.

Line the marks on the distributor up with each other, and insert into the timing cover.

Look down the timing cover with the valve cover removed, and make sure the marks on the distributor are STILL lined up.

I have noticed that you typically have to slighly offset the marks from each other so that when the teeth from the distributor engage the teeth from the timing chain idler pulley, The marks will line up.


Hope this helps!
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Old Apr 15, 2007 | 05:58 AM
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Originally Posted by asia989
holy posts batman, he comes out from his cave!!!

i know right

anyway, the latest update.

I wasn't there so I don't know this for a fact.

My buddy was working on the car and he said that he double checked everything and lined everything up. The spark plugs were sparking. Time was set at the correct TDC. The whole nine yards. He said that he couldn't get it to start. He got some "pops" but not enough to be running.
I don't know if he actually got everything the way it needed to be or not.

We also realized that the gas has been sitting in the tank for a while. I'm wondering if that is the cause. I know it was 92 octane, a few months ago.... maybe last august.... ok so maybe it was more than a few months, more like 8. Would the gas just not be any good? and would it cause this issue?

thanks
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Old Apr 15, 2007 | 09:37 AM
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um I had 6 month old gas and it started right up but i probaly got lucky. If its poping then its just your timing, try to turn the dist. to the left i believe i think the dist. is to advance...Try that.
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Old Apr 15, 2007 | 12:23 PM
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i've turned it all sorts of ways, still no luck. i'm gonna try and see if the injectors are actually putting out the proper amounts of gas.
anybody know of a better way then to hold the fuel rail off to the side and make a mess?
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