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#1
09-10-2009, 09:31 PM
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Does this mean anything?
I have noticed that when I look at the timing marks, with the timing light, they will move two or three degrees back towards zero. It is very noticeable when I have the engine up 1500 rpm. It is a quick jerky movement.
Is this an indication of anything?
__________________
Britton McIntyre 68 280 SE coupe 'Hairball' 70 280 SL 71 280 SEL - RIP May 2010 
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#3
09-11-2009, 07:55 AM
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Quote:
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#5
09-11-2009, 08:33 AM
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Id say vacuum
__________________
Ron 2015 Porsche Cayman - Elizabeth 2011 Porsche Cayman - Bond,James Bond Sadly MERCEDESLESS - ALways LOOKING ! 99 E320 THE Queen Mary - SOLD 62 220b - Dolly - Finally my Finny! Sadly SOLD 72 450SL, Pearl-SOLD  16 F350 6.7 Diesel -THOR 19 BMW X5 - Heaven on Wheels 14 38HP John Deere 3038E Tractor -Mean Green 84 300SD, Benjamin -SOLD 71 220 - W115-Libby ( my first love) -SOLD 73 280 - W114 "Organspende" Rest in Peace 81 380 SL - Rest in Peace
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#6
09-11-2009, 08:35 AM
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If it's just a few degrees I wouldn't let it concern me. It just means that some things are getting a little warn. Chances are the bushings in the distributor are are getting a little loose. Another possibility, though unlikely, is the spring on the points is getting weak causing them to bounce.
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#7
09-11-2009, 09:44 AM
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How smooth is the idle?
__________________
___ /<>/>/> 1967 230S automatic Boston, MA
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#8
09-11-2009, 02:42 PM
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Quote:
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#9
09-11-2009, 02:48 PM
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The idle is ok and the vacuum unit is new. Start up is a little rough.
__________________
Britton McIntyre 68 280 SE coupe 'Hairball' 70 280 SL 71 280 SEL - RIP May 2010
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#11
09-11-2009, 03:04 PM
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Yeah, in that case I'm in the "forget you noticed it" camp too. I've seen them vary a little at random too. More often than not they do, although I've owned cars where they are rock solid steady too. They're almost always steady at high revs regardless, what's it like at 3000?
Were you the person on here that went through that whole frozen-sheared off distributor replacement fiasco?
__________________
___ /<>/>/> 1967 230S automatic Boston, MA
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