Just put the head back on my car today, started it up and it runs like hell, sounds like its sputtering/misfireing. Check the compression and it was only like 175. Maybe this was becuase the motor was not warmed up but i dont know. There is a check engine light and i havent ran it yet. Im woundering though, when i did the timing evrything was lined up, i had the bottom end at TDC and then i lined up the cam gears, i spun them around until the noches lined up, but im thinkin did i hit the top of the piston with a valve? It was at TDC and i spun each cam around to line it up. Is it possible i bent the valves again!? Help im really fustrated, just put ton of hours of work into it.

 

Did you use the white or red mark to find TDC? What was the compression in all cylinders? The engine should be warm for a compression test.

 

there was a notch where the timing belt runs on and i lined it up with notch behind it. I did not see colored lines.

 

Oh and the compression was like 170,174,178,170

 

You did it right, you just didn't have the lower cover installed at that point. Take a piece of string and extend it across the cam gear faces at TDC to check for proper alignment. What was your CEL? Are the plug wires in the correct order? Have you adjusted the ignition timing?

 

I didnt check the CEL, yes the plugs were in the right order,I have not adjusted the ignition timing i just put the distrubtor back where it was before. And im not really understanding your trick with the string, what do i do?

 

I do not have a picture of the string technique. You basically extend a piece of string horixontally across the centers of the cam gears to verify their alignment. The string should contact all center lines on the cam gears and intersect the bolt centers.

Check the CEL. It could provide insight.

 

Man i really wish i checked the code, because im home now and i do all the work at my garage. Im almost 100% that the timing it right. It idels at 1000rpm and aounds like its not running on all cylinders, the exhaust puffs smoke out like a missfire. Would the adjusting of the valves have anything to do with this becuase i just did them today.

 

Ill run the code and be back tomorrow. Thanks for the help so far.

 

Checked the code and it was the o2 sensor. It got pulled out of the plug when i moved the exhaust. Now no check engine lights but still runs like hell.

 

Anybody will the valves being adjusted wrong make it runn like its missfireing?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by str8JDMteggy &raquo;</TD></TR><TR><TD CLASS="quote">Anybody will the valves being adjusted wrong make it runn like its missfireing?</TD></TR></TABLE>

It can. The symptoms would be the same as a bent valve if they are too tight. However, your compression numbers were pretty consistent.

I think that your cam gears could be off. Have you done many of these before? Check your ignition timing with a timing light. If the distributor is in the original position and the ignition timing is off, your intake cam gear is off.

 

Maybe the compression numbers were constant because all the valves are all equally too tight. Im almost posative the cams are right. I spun it until the notchs faced eachother and its right on.

 

You didnt bend the valves, the LS is a non-interference motor and the GSR "small" off vtec lobes aren't large enough to cause interference. Thus, unless vtec is engaged the valves wont hit. If the valve adjustment is too tight then the valves might not be closing all the way (or just so on one cylinder), however that should've resulted in extremely low compression #s. You sound awfully unsure about the cam timing and thats my first guess. Do you have the back timing belt cover on? The one that goes behind the cam gears? My guess is you have the exhaust cam 1 tooth off and need to triple check that.

 

Yeh ill check the timing again and im having my friend come over and adjust my valves because he works on these cars everyday of his life. Thanks again for the info.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by str8JDMteggy &raquo;</TD></TR><TR><TD CLASS="quote">Yeh ill check the timing again and im having my friend come over and adjust my valves because he works on these cars everyday of his life. Thanks again for the info.</TD></TR></TABLE>

If you can get him to check double check the timing for you.

 

First off every honda motor is an interference motor. And yes valves not correctly adjusted will cause a misfire. The first thing you should have done was adjusted the valves. Adjust the valves ! ! !

 

did you do i valve lash adjustment cause thats what held me back after my head swap did a compression test got 0 after valve adjusted started rite up

 

Not really understanding you, did a compression test and got 0, then it started right up? What?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by str8JDMteggy &raquo;</TD></TR><TR><TD CLASS="quote">Not really understanding you, did a compression test and got 0, then it started right up? What?</TD></TR></TABLE>

ok ready for a story naw but here wat happen to me after i did a head swap long story short after i finish i tryed to start it and nothing after doing a compression test got nothing thought it was broke so i did timing again nothing so last thing valve lash and boom it started

 

ok i see, yeh hope its the problem, but mine starts everytime just runs rough.