CEL After Valve Adjustment
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Joined: Apr 2018
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You need to use the cam timing marks (idk what it's called) on the big sprocket in front of the 2 cam sprockets. Go 90 deg for each adjustment on that sprocket! Don't look at the cams.. I got a much better adjustment my second attempt when I paid attention to those timing marks.
Make sure you got "good drag" on the tight end, and you should be good to go. Are you using socket flathead combo tool?
Make sure you got "good drag" on the tight end, and you should be good to go. Are you using socket flathead combo tool?
Joined: Jun 2016
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From: Vermont
The best way, fastest, easiest, and virtually foolproof way to adjust valves is to ignore the instructions.
Instead, follow my simple rule for adjusting valves. Rotate motor until valve you want to adjust has its cam lobe pointing up, away from the follower.
Thats it. If lobe is up, adjust.
If you're too cautious to follow the radical idea of discarding instructions, you can still follow them AND follow the rule to make sure you don't screw up. If the valve you are about to adjust based on following the instructions does NOT have its cam lobe pointed up, STOP. You screwed up somewhere. Do over.
Follow this rule and its virtually impossible to screw up the valve adjustment.
Instead, follow my simple rule for adjusting valves. Rotate motor until valve you want to adjust has its cam lobe pointing up, away from the follower.
Thats it. If lobe is up, adjust.
If you're too cautious to follow the radical idea of discarding instructions, you can still follow them AND follow the rule to make sure you don't screw up. If the valve you are about to adjust based on following the instructions does NOT have its cam lobe pointed up, STOP. You screwed up somewhere. Do over.
Follow this rule and its virtually impossible to screw up the valve adjustment.
Last edited by rpg51; Jul 31, 2018 at 03:03 AM.
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Joined: May 2018
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From: Stockton CA
Yeah I used the timing marks and those did get alittle confusing trying to get them to be perfect. But after my second adjustment I was pretty confident in my work so I think it will be good now, I will just check everything now and then because getting the valve cover off is awfully easy now.
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Am I the only one that just inserts a very long (24"+), narrow dowel into the cylinder when I do adjustments? I've used that method on 4 cylinder motors for years. Get the motor to TDC on cylinder 1, insert your dowel, confirm cam and timing marks, and adjust that valve. On each successive cylinder in the firing order, rotate the crank until the dowel is as far up as it'll sit, confirm that the lobes are at 10 and 2, and confirm the timing marks on the gears. It makes it totally fool-proof. That's how I was taught, and I can't think of any drawbacks.... unless you're really not bright and just drop a short rod into the motor. lol
Joined: Aug 2012
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Inserting things into the combustion chamber just adds unnecessary risk, plus it takes longer than just watching cam lobe as you turn motor.
Turn motor with socket, watch cam lobe, Adjust valve. Turn motor, watch cam lobe, adjust valve. Repeat until all valves done. Simple, easy, foolproof.
Turn motor with socket, watch cam lobe, Adjust valve. Turn motor, watch cam lobe, adjust valve. Repeat until all valves done. Simple, easy, foolproof.
Joined: Aug 2012
Posts: 8,759
Likes: 1,859
No matter what method you use, ALWAYS LOOK AT THE CAM LOBES. You can't go wrong if you make sure the lobe is up.
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