i got a 2000 gsr and i took out the camshafts and timing belt and all this **** and i know the timing is all messed up...i was wondering how u can put the timing right and what u have to do?? help me out with this guys...thanks

 

http://www.c-speedracing.com/h...g.php

 

o ok but how do u know how the shafts are supposed to go...like if u put the shafts in anyway wouldnt it mess up the timing

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSR KiNg &raquo;</TD></TR><TR><TD CLASS="quote">o ok but how do u know how the shafts are supposed to go...like if u put the shafts in anyway wouldnt it mess up the timing</TD></TR></TABLE>

understatement of the day!!! yes it matters which way the cams are installed, when the cam gears are installed look at the marks on the face of them there are two marks that line up the gears, and two marks that point straight up. im sure somebody can post a pic to show you...............and you call yourself gsr-KING

 

After you get the cams and gears all installed, with the cam caps back on and everything, rotate the cams so that you can fit a punch or small screwdriver through the hole in the 2nd cam cap into the hole in the camshaft. That's where the camshafts should be for TDC #1 cylinder. Now rotate the engine so that the #1 cylinder is at the top of its stroke, get all the index marks lined up (on both the crankshaft sprocket and the cam gears) and install the belt.

Keep in mind that when you're talking only about the crankshaft and pistons, there is no compression or exhaust stroke. There is only TDC or BDC or somewhere in between. When you fit the punches through the holes in the cam caps into the camshafts, that is TDC for the #1 cylinder on the compression stroke (all valves closed above the #1 cylinder).

 

u sure ?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GSR KiNg &raquo;</TD></TR><TR><TD CLASS="quote">u sure ?</TD></TR></TABLE>

sure about what, the crankshaft? It makes 2 complete revolutions during every 4-stroke combustion cycle. There is no different between the compression stroke and exhaust stroke, or the intake stroke and power stroke, as far as the crankshaft is concerned. The only thing that determines what stroke it's on is the positions of the valves of that cylinder. If the piston is moving up and the exhaust valves are open, it's the exhaust stroke. If the piston is moving up and all valves are closed, it's the compression stroke. Piston moving down w/ all valves closed = power stroke. Piston moving down w/ intake valves open = intake stroke.

What I'm saying is, if you're setting #1 to TDC with the everything together and timing belt on, then you have to make sure it's at TDC on the compression stroke. If you're just setting the #1 piston to TDC without the head on, or without the timing belt or camshafts installed, then just make sure that piston is at the top of the stroke. You don't have to worry about what stroke it's on.