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1998 Honda Accord Timing.

Tiny
CHOCOLATETHUNDA
  • MEMBER
  • 1998 HONDA ACCORD
  • 2.3L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 250,000 MILES
I am putting a new cylinder head on to replace the old one that was stolen. The camshaft is pretty easy to determine where I need to set it at for TDC. The issue I'm having is with setting the no.1 piston at TDC because it needs to be on the compression stroke. Is the stroke (exhaust or compression) just determined by which valves are open or does the crankshaft positioning play a role as well?
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Monday, October 13th, 2014 AT 6:12 PM

3 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
Nope. Just put it at top dead center. That puts two pistons all the way up, including cylinder number one. If you rotate the crank one complete revolution, the pistons will be right back in the same spot. It's the camshaft that determines valve timing, not the crankshaft.
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Monday, October 13th, 2014 AT 6:20 PM
Tiny
CHOCOLATETHUNDA
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  • 1 POST
I think I got it. No.1 piston at TDC and camshaft in the TDC, there's a marking on the camshaft pulley/gear that says up, I put that into position and lay it down on there?
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Monday, October 13th, 2014 AT 6:24 PM
Tiny
CARADIODOC
  • MECHANIC
  • 33,871 POSTS
What do you mean by "lay it down on there"? Are you trying to position the sprocket, then set the camshaft onto the head?
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Monday, October 13th, 2014 AT 8:28 PM

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