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Finding TDC cylinder 1 (easiest way)

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Old Aug 29, 2011 | 05:38 PM
  #21  
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From: Natick mass 508
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With the valve cover off you should be able to see when the base circle of the cam is in contact with the valve/rocker then just line up the factory marks with the cam gear to the head or cover and crank to a mark on either the cover or the block if the timing belt has marks on it u will line those up with the marks on the sprockets if not just put the belt on the crank then probley the water pump and then cam (s) then end up with all your slack on the tensior pulley side then set your tensioner and rotate the motor 5-6 times by hand check your sprocket marks cam and crank and that your tension is good then button it all up if i get a chance at work tomorow ill try and look up the factory procedure but that should do it u can probley find a write up online with pics to help but like i said that should do it u could also see if u could pay a shop a couple bucks to print out the procedure from all data or mitchells program i just dont have a way of coping and pasteing it to online
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Old Aug 29, 2011 | 08:11 PM
  #22  
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Thank you so much paulding for taking your time on this write-up!
I wish I had that earlier because I put the timing belt on this morning
tight-up everything and tried to start the vehicle, unfortunately
the motor turned over & over but did NOT start. I will try your comments
and see if I can get this engine started atleast, I hope nothing damaged from
trying to start it earlier.

People always say: little one's are the worst...and this is why I better work
on my BMW instead.

Thanks paulding!
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Old Sep 4, 2011 | 01:44 PM
  #23  
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I just use my matco bore scope and watch the pistons with a camera.
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Old Sep 10, 2011 | 07:51 AM
  #24  
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Originally Posted by Damian
I just use my matco bore scope and watch the pistons with a camera.
^^^^ Good Idea. I will ask my good friend,has one at shop..
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Old Apr 13, 2013 | 10:42 AM
  #25  
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reviving an old thread but I have one question about the thumb trick, you will feel air being pushed throughout the entire comp. stroke, so how do you know when the piston reaches TDC using that method?
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Old Apr 22, 2013 | 05:56 PM
  #26  
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The air pressure lets you know the piston is coming up on the compression stroke, and not the exhaust stroke.

When it stops pushing air, its pretty close to tdc.

There are very few jobs you would ever do that require a precise or exact TDC on a distributor less engine,AND you don't have it disassembled to the point where you can see the timing marks
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Old May 20, 2013 | 10:43 PM
  #27  
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Originally Posted by Damian
I just use my matco bore scope and watch the pistons with a camera.
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Old May 26, 2024 | 10:43 PM
  #28  
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Originally Posted by Jeff Smith
^^^^ Good Idea. I will ask my good friend,has one at shop..
TDC markin..... if your at TDC and your marks are not lined up on the balancer and cover what is wrong
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Old May 27, 2024 | 01:17 AM
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Originally Posted by Ebetts
TDC markin..... if your at TDC and your marks are not lined up on the balancer and cover what is wrong
Hey genius, first off, you're replying to a THIRTEEN YEAR OLD thread.
Besides that, LS engines don't have indexed crank balancers, therefore NO MARKS ON THE BALANCER!
BOTS and TROLLS are not welcome here.
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