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#1
06-25-2007, 12:05 PM
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617 Valve Adjustment Clarity
adjusting valves today and want to make sure i got it correct. water temp below 30*C (86*F) measure between the a top nut and the rocker arm. exhaust set to 0.35mm and intake to 0.10mm.
what happens if the "cold" temo of the engine is above 30*C because we have been having 90*+ days here? the car has been sitting for a couple of weeks so it has not been run. thanks in advance
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-Trevor OBK #12 1980 300SD 333,XXX miles - Totaled 1986 Mazda RX-7 212,XXX miles - impounded and auctioned off 2005 Jeep Liberty CRD Limited 33,000- SEGR, Provent, Fumoto 
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#2
06-25-2007, 12:09 PM
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no problem, a little heat from ambient is fine. as long as it's not hot from running the motor. sounds like you have a handle on it. except there is no rocker arm... you are measuring between the cam base circle and the adjuster nut.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#3
06-25-2007, 12:10 PM
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thanks for the quick response John. This car is waiting for the tranny so i can head out your way. hopefully it will be done today....or some heads will roll cause i was supposed to be out last Thursday.
__________________
-Trevor OBK #12 1980 300SD 333,XXX miles - Totaled 1986 Mazda RX-7 212,XXX miles - impounded and auctioned off 2005 Jeep Liberty CRD Limited 33,000- SEGR, Provent, Fumoto
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#5
06-25-2007, 12:21 PM
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I've found no problems with measuring the way all the books suggest.
Valve Adjustment Why would you want to measure between the "cam base circle and the adjuster nut"?
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1982 300CD Petrol/Black Leather
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#6
06-25-2007, 01:55 PM
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there is a .02 difference for hot/cold engines. iirc its in the fsm
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#7
06-25-2007, 03:10 PM
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Doh! you are right. there is a "rocker arm" of sorts, it's the cam follower. but you measure to the base circle of the cam, not the lobe. be sure the lobe is pointing away from the follower.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!! 1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#8
06-25-2007, 08:43 PM
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i think i am going for the longest time to adjust the valves record. so far it has taken be 3.5 hours. i am going very slow and making sure things are right.
one question. my feeler gauge does not have a 0.10mm it has a 0.12mm though and that is how i have been setting the intake valves. is that 0.02mm that big of a deal? i figure they are going to tighten up anyhow over time. *edit* the PITA is the last two valves. those cam towers are close. i can see how the bent wrenches could help a lot.
__________________
-Trevor OBK #12 1980 300SD 333,XXX miles - Totaled 1986 Mazda RX-7 212,XXX miles - impounded and auctioned off 2005 Jeep Liberty CRD Limited 33,000- SEGR, Provent, Fumoto
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