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#1
09-21-2009, 08:35 AM
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I'm getting there!
I have a 1976 450SL and thanks to this forum, I have solved some of its engine problems. However, the engine still sputters and backfires through the throttle plate when first started. After I let it warm up for about 5 minutes, it smooths out considerably. I have recently cleaned the screen on the warm up regulator and this helped, but the above problem still persists. Any ideas on this one? Thanks for your help.
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#2
09-21-2009, 08:36 AM
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Have you checked your timing?
__________________
With best regards Al
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#3
09-22-2009, 10:53 AM
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DO/Check the following
1.eliminate leaks in air intake system: 2. Check Auxiliary Air Valve for opening 3. Cold Start Valve leaking: 4. Cold control pressure not correct: 5. Injector Leaking: 6. Injected fuel Quantities low: 7. Basic Idle incorrect: 8. Fuel Leaks: 9. Fuel injector Clogged: 10. Control Plunger in the fuel distributor binding: and as Alabbasi noted 11. Idle speed, Ignition Timing, and mixture out of tolerance:
__________________
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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