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Finding #1 TDC on an engine out of a car... 

 

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 Post subject: Finding #1 TDC on an engine out of a car...
Posted: Sun Nov 02, 2008 7:18 pm 
Getting Side Ways
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The EF engine that will be going into my ED came, of course, without a distributor. As I am putting a log manifold on it and "downgrading" it, I am putting a distributor in.

My question is, what is the trick to finding #1 TDC if I cannot turn it over (with a starter motor) to find the compression point or can a use a plug in #1 to do the same thing? I would prefer not to buy some expensive tool.

Any suggestions welcome.

Cheers
RD

 

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Posted: Sun Nov 02, 2008 7:45 pm 
Parts Gopher
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the easiest way to do it is pull the tappet cover off so you see the cam an valves an that an then turn the motor over untill number 1 cylinder is on the rock ie both the inlet an exhaust are closed then look down on your harmonic balancer to find excatly tdc (that is if your harmonic balencer isnt stuffed and slipped)
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Posted: Sun Nov 02, 2008 9:26 pm 
Getting Side Ways
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xpnutter wrote:
the easiest way to do it is pull the tappet cover off so you see the cam an valves an that an then turn the motor over untill number 1 cylinder is on the rock ie both the inlet an exhaust are closed then look down on your harmonic balancer to find excatly tdc (that is if your harmonic balencer isnt stuffed and slipped)
Thanks... so #6 doesn't come in to play here, isn't it up at the same time as #1? This is why I asked about the compression stroke.

BTW, in all my years of owning cars I have never had a harmonic balancer slip - ever. Why does everyone say that thse ones slip?

Cheers
RD

 

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=1998 EL Futura Sedan - The EF Fairmonts Replacement=
Build Thread: viewtopic.php?f=53&t=106588

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Posted: Sun Nov 02, 2008 9:29 pm 
Getting Side Ways
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Pull all the plugs except no.1. Turn the motor clockwise by the crank pully bolt untill you feel resistance continue untill the timing mark aligns with tdc.

 

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Posted: Sun Nov 02, 2008 9:35 pm 
Getting Side Ways
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twason wrote:
Pull all the plugs except no.1. Turn the motor clockwise by the crank pully bolt untill you feel resistance continue untill the timing mark aligns with tdc.
Bingo, thats what I was looking for - thanks!

Cheers
RD

 

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=1998 EL Futura Sedan - The EF Fairmonts Replacement=
Build Thread: viewtopic.php?f=53&t=106588

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Posted: Mon Nov 03, 2008 3:41 pm 
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twason wrote:
Pull all the plugs except no.1. Turn the motor clockwise by the crank pully bolt untill you feel resistance continue untill the timing mark aligns with tdc.

That's clever.

The last way i did it was to remove no.1 and have a bit of fluid on my finger stuck in the hole so i could see which way the airflow was going. Maybe not as good as your method.

 

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Posted: Mon Nov 03, 2008 11:00 pm 
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i agreee with twason, thats what we do with them at work.
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