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#1
02-08-2004, 11:52 AM
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URGENT! 4.5 valve clearances?
What are the valve clearances for a 4.5?
Thanks Tim 
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#2
02-08-2004, 01:14 PM
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.10 mm (.004") for the intake valves and .20 mm (.008") for the exhaust valves. Clearance is measured cold.
hope this helps. This info is easily found by searching the archives. Often quicker results than posting an urgent message.
__________________
Mike Tangas '73 280SEL 4.5 (9/72)- RIP  Only 8,173 units built from 5/71 thru 11/72 '02 CLK320 Cabriolet - wifey's mid-life crisis 2012 VW Jetta Sportwagon TDI...at least its a diesel Non illegitemae carborundum.
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#3
02-08-2004, 05:34 PM
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Well, I searched and got that, but in a Chilton's book that i rented from the library, it said .003" for intake and .007" for exhaust.
Thanks Tim
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#4
02-08-2004, 10:38 PM
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Well, you're both half right:
0.003" (0.08mm) Intake. 0.008" (0.20mm) exhaust! According to the emissions plate on the front crossmember, and my emissions control booklet:
__________________
Current: 2021 Charger Scat Pack Widebody "Sinabee" 2018 Durango R/T Previous: 1972 280SE 4.5 2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi" 1999 Chrysler 300M - RIP @ 221k
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#5
02-08-2004, 10:54 PM
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Just to muddy the waters here - aint no crime in erring at opening them slightly too far (especially exhaust valves) - say .0045 intake and .009 exhaust......... old hot-rod trick for picking up compression on tired old engines.
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#6
02-08-2004, 11:34 PM
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Well I didnt do much to them today as I lost the crow's foot for it temporarily, but when it gets warmer, I will do that.
Thanks Tim
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