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Running lean in Vtec!

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Old Jun 7, 2011 | 07:14 PM
  #51  
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Default Re: Running lean in Vtec!

Originally Posted by mouab18c1
Alright so shitty news. I re timed everything at TDC, my cam gears are about 1/2 tooth off. Which is the only way they will line up using the TDC marks on the cam gears. Car runs like ****. No power whatsoever.
I'm going to do my best, to try and explain this.

When timing the motor, the gears are going to tilt forward a tad. The "Top slit, in the gear point up, should be in the middle of the cam journal cover. INT Lobe should be @ 1 oclock, exhaust @ 11 oclock..the motor does tilt forward. The cams should sit @ tdc pretty easily, they might need to be moved a bit each way to put the belt on, but when you move them you'll understand how to put them back in time shortly.

Put the crank pully back just a tad before the TDC mark. Put your belt on, starting @ the crank first, then over the tensioner, then water pump, now slid the belt on the intake and the exhaust at the same time, you might have to move the cams a little bit each way to get the belt on but after some "finesse" it should go on.

Now look @ what you have, your gears should be close to being to TDC. Rotate your crank just a tad, counterclock wise to remove the slack from the front of the belt. Usually about a half inch before the TDC mark on the block is how much i have the crank set back. When you rotate it, it takes the slack out the front of the belt. Now get a flat head or coat hanger, and pull up on the lip of the tensioner, and tight it down. If your "gears" are off a bit, its possible you have slack inbetween the gears , before it or after it. So you have room to move to get the slack out and line the gears up.

Its not very hard to do this.. i remember a while back you having such a hard time lining things up, but i assure you, it shouldn't be this hard.
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Old Jun 7, 2011 | 08:45 PM
  #52  
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Default Re: Running lean in Vtec!

The way I'm doing is according to the Chilton's book. Never had an issue with OEM parts until I recently got aftermarket valvetrain and cams.

Last edited by mouab18c1; Jun 7, 2011 at 10:16 PM.
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Old Jun 8, 2011 | 08:38 PM
  #53  
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Default Re: Running lean in Vtec!

The only thing I can think of now is the timing belt stretched. I have tried Derek's^ method along with the Chiltons method. Same results. At TDC my cam gears are 1/2 tooth off. When the cam gears are aligned at TDC my crank is about 1/4" past TDC. FML. aha
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Old Aug 5, 2011 | 04:37 PM
  #54  
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Default Re: Running lean in Vtec!

Back from the dead, Timing is now at TDC at the crank and cam gears. Car still leans out in Vtec. I will add more fuel for high load under IAT Corrections but I still doubt that's the problem.
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Old Aug 7, 2011 | 11:07 PM
  #55  
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Default Re: Running lean in Vtec!

Neptune is awesome. The end!
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Old Aug 9, 2011 | 06:21 PM
  #56  
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Default Re: Running lean in Vtec!

Originally Posted by mouab18c1
Neptune is awesome. The end!
lol... was it a tuning problem?
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Old Aug 10, 2011 | 10:35 AM
  #57  
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Default Re: Running lean in Vtec!

Originally Posted by Gunmetal_B20_Hatch
lol... was it a tuning problem?
It needed a **** ton of fuel, I didn't expect it to be that much. Car runs like a champ now
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Old Aug 10, 2011 | 06:02 PM
  #58  
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Default Re: Running lean in Vtec!

Originally Posted by mouab18c1
It needed a **** ton of fuel, I didn't expect it to be that much. Car runs like a champ now
*******!
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