Hello everyone. I finished my valve adjustment on my gsr today and had a question about the spacing I found before I ajusted them. When I pulled off the valve cover and started measuring the spacing of each cylinder at TDC, I found that some of the specs were too tight and I had to loosen them. I was on the assumption that over time, valves tend to get loose, not tighter. Is there a reason why the valves were tighter than spec rather than looser before I ajusted them?

 

they could have either been tightened at the tight end of the tolerance, or just misadjusted. if you don't hold the screw as you tighten the nut, the screw will move and put the adjustment out of spec.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtec03 &raquo;</TD></TR><TR><TD CLASS="quote">they could have either been tightened at the tight end of the tolerance, or just misadjusted. if you don't hold the screw as you tighten the nut, the screw will move and put the adjustment out of spec.</TD></TR></TABLE>

yeah check that first, and btw did when you did your valve adjustment, you didn't do all of them at tdc right?

 

that's what i was thinking^^

i hope that you didn't adjust all of your valves at TDC, only cylinder one. The firing order goes cylinder 1,3,4,2, in that order, so you should have rotated the crank 180 degrees in between each cylinder adjustment. Since the cam gears move only half as far as the crank, you will see the cam gears rotate 90 degrees. You can line up the cam gear teeth to make sure that the valves are in the right position.

Another question: What are you measuring the valve lash with? Hopefully feeler gauges, but just so you know, you should be able to fit the .007 feeler in pretty well, but the .008 shouldn't fit on the INTAKE side. On the EXHAUST side, the .008 should slide in with some friction, and the .009 shouldn't fit. This is if you are using the stock valve train.

Hope that helps a little...

 

how hot was the engine when u adjusted them?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSvtec03 &raquo;</TD></TR><TR><TD CLASS="quote">they could have either been tightened at the tight end of the tolerance, or just misadjusted. if you don't hold the screw as you tighten the nut, the screw will move and put the adjustment out of spec.</TD></TR></TABLE>

I used the specialized tool with the screw and socket thingy. I double checked my adjustment, but the spec it was at before I adjusted seemed to tight.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by virusiidx &raquo;</TD></TR><TR><TD CLASS="quote">yeah check that first, and btw did when you did your valve adjustment, you didn't do all of them at tdc right?</TD></TR></TABLE>

I put each cylinder at TDC before I ajusted. I followed the instructions from the team-integra web site and my helms manual. I was just wondering why it was so tight before I adjusted them. According to the helms and the site, I ajusted the intake at .006 so that .007 wound not fit, and the exhaust at .007 so that .008 wouldn't fit. Team-integra said that the valves tend to get looser over time, not tighter. I was just wondering why mine were tighter before I adjusted them.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Dan GSR &raquo;</TD></TR><TR><TD CLASS="quote">how hot was the engine when u adjusted them?</TD></TR></TABLE>

This I was iffy about. I went to go buy some feeler gauges in the morning about 2 miles away for just 5 mintues and then parked for about 5 hours before I started. I hoped that was enough and was told that the engine should be cold enough.

 

the engine should be ice cold, when doing the valve adj
i usually like to do it in the morning, after it has been sitting all night

last time did it with the engine, not cold enough, the parts were hot, and expanded, so the valves appeared to be too tight, and i adjusted them to be too loose

 

Ok, seems like a simple enough explanation. Engine Ice Cold before Adjusting. Got it. I guess I gotta do it over again.

 

adjusting them when they are warm is useless.

just let it sit overnight and you're good. 4 hours minimum.

 

just wait and crank your car up in the morning. If it sounds really noisy like a diesel engine, then you botched it and you need to do it over. This time make sure the engine is cold. I believe the Helms specifies the head's metal temperature needs to be 100 deg. or less before adjusting the valve lash.

 

valves can be adjusted as long as engine temp is under 100 degrees

 

Yeah, I waited 5 hours before I started. But I guess it wasn't enough. I'm going to redo it again sometime this week after waiting a night.