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Old 04-06-2003, 04:17 AM   #1
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Is this cam installed wrong ?
Hey everyone. I had my shortblock built by a reputable machine shop here locally. Now I'm at the point where I need to adjust the valves and something just doesn't add up. I'm not sure TDC is.... TDC. As I turn the motor clockwise to go towards #1 TDC the exhaust valve on number is is closing. BUT when I look in the hole on #1 the piston is down and both valves on number #8 are closed. If I turn it 360 degrees, the piston comes up and #8 exhaust is opened. Does that sound right to you guys ??
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Old 04-06-2003, 09:50 AM   #2
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Watch #1 valves. With the timing mark up (#1 TDC), one of 2 things should be happening; either both valves should be closed, or the E should be just closing and the I just opening. Turn the crank 360° and the other thing of those 2 should happen. Turn it 360° again, and the first thing should happen again.
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Old 04-06-2003, 01:36 PM   #3
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Well how can either of the "two things" happend when you're at TDC ? Shouldn't both valves be closed and that's IT ?
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Old 04-06-2003, 02:11 PM   #4
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Quote:
Well how can either of the "two things" happend when you're at TDC ? Shouldn't both valves be closed and that's IT
it takes two revolutions of the crank to make one cycle
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Old 04-06-2003, 02:36 PM   #5
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Well yeah.... but when the #1 pistin at TDC only ONE of those things should happen, correct ?
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Mighty Demon 850
Dart Iron Eagles fully ported 2.08/1.60 valves
Edelbrock RPM Air Gap intake
256/262 .600/.600 Erson solid roller
NWC T5 (can you believe it ?)
MSD Digital6 ignition
Full exhaust
LED dash
LED tail lights and 3rd brakelight
17 inch chrome IROCs
Nitto 555 drag radials
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Old 04-06-2003, 02:51 PM   #6
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Right. I'm still not that hardcore to where I can "just know" when the engine is at TDC and on the "bang" stroke.

I always spin the engine around a couple times to be sure. I watch the valves and go thru the "suck, squish, bang, blow" cycle
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Old 04-06-2003, 03:18 PM   #7
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LOL !!

I guess I'm idiot... I figured it out. I just followed RB's advice on watching the exhaust valve on #6 close AS you're approacing the TDC mark. That seemed to work beautifully. I wasn't in the position where I had to adjust that valve that's supposed to opened anymore. LOL


All the valves are set right now at .015 lash I'm about to drop it in right now....
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Mighty Demon 850
Dart Iron Eagles fully ported 2.08/1.60 valves
Edelbrock RPM Air Gap intake
256/262 .600/.600 Erson solid roller
NWC T5 (can you believe it ?)
MSD Digital6 ignition
Full exhaust
LED dash
LED tail lights and 3rd brakelight
17 inch chrome IROCs
Nitto 555 drag radials
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Old 04-06-2003, 03:18 PM
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