Valve Adjustment Question
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Valve Adjustment Question
2005 CR-V EX 2.4 engine
I'm right in the middle of doing a valve adjustment, and I have a question. I hope a few of you can answer quickly. I've done valve adjustments before on my 65 VW back in the 70's (cork gaskets, done with every oil change!) and came up adjusting points with a feeler gauge also. But it's been decades since I've used a feeler gauge for anything but checking plug gaps.
BTW, as others have noted, all the exhaust valves have been pretty tight.
So here it is: I have been through all the cylinders and adjusted them. But as I was putting in the feeler gauge every time, I noticed that there was some give as I pushed in the feeler gauge (due to the spring on the valve and some movement of the rocker arm and the adjusting screw.
I think I'm doing things correctly, but I just want to check. Should the correct size feeler gauge fit in between the adjusting screw and the top of the valve stem without that movement, or is that normal? I'm adjusting the intakes to .009 (0.23 mm) with a nice feel to it. But if I push pretty hard or if I lift up on the rocker arm I can still get the .010 (.254 mm) gauge in there. Should I be adjusting the clearance so that I can get the .009 in there without movement of the rocker relative to the valve stem?
I know it's a Saturday afternoon and I don't know how many people are on, but I'd appreciate a little advice so I can put things back together.
I'm right in the middle of doing a valve adjustment, and I have a question. I hope a few of you can answer quickly. I've done valve adjustments before on my 65 VW back in the 70's (cork gaskets, done with every oil change!) and came up adjusting points with a feeler gauge also. But it's been decades since I've used a feeler gauge for anything but checking plug gaps.
BTW, as others have noted, all the exhaust valves have been pretty tight.
So here it is: I have been through all the cylinders and adjusted them. But as I was putting in the feeler gauge every time, I noticed that there was some give as I pushed in the feeler gauge (due to the spring on the valve and some movement of the rocker arm and the adjusting screw.
I think I'm doing things correctly, but I just want to check. Should the correct size feeler gauge fit in between the adjusting screw and the top of the valve stem without that movement, or is that normal? I'm adjusting the intakes to .009 (0.23 mm) with a nice feel to it. But if I push pretty hard or if I lift up on the rocker arm I can still get the .010 (.254 mm) gauge in there. Should I be adjusting the clearance so that I can get the .009 in there without movement of the rocker relative to the valve stem?
I know it's a Saturday afternoon and I don't know how many people are on, but I'd appreciate a little advice so I can put things back together.
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From: The South - Roll Tide !!!
Re: Valve Adjustment Question
Make the feeler gauge clearance snug enough so that you cannot get the next size inserted. So using your example, snug up the adjustment on the .009" feeler gauge so that you cannot insert the .010" feeler gauge. IF you can insert the next feeler gauge size, it should be REALLY TIGHT and very difficult to do. You should be checking the lash between the valve tip and the rocker arm. You should not be able to compress the valve/valve spring by hand... what you are likely experiencing is the "free play" of the rocker arm being lifted when you insert the feeler gauge between the rocker itself and the valve tip. This would be normal as long as the camshafts are at the proper position for setting lash... TDC for the appropriate cylinder.
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Aug 19, 2013 04:16 PM