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Old 05-07-2002, 08:37 PM
fla auto shop
Posts: n/a
Question 73 4.5 quit-partial inj pulses

[COLOR=blue] Great Forum and I have read a lot of posts.
I have a 73 108 body 280 SEL that quit while driving.
It will run when cold but quits running after a minute or so.
The fuel pressure stays at 33 psi,good spark but when I cycle throttle with key on engine not running , I only have part (4) of the injectors clicking , 2 on each bank. Cleaned and retightened grounds and verified battery to relay power and controller power and ground.
I can meter some fuel down t/bore to get car to idle,and do not hear any injectors clicking with a stethescope.
Is this the trigger points and if so how do I adjust them.
Any advise will be helpful
Frank Swobodzien
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Old 05-07-2002, 11:38 PM
hill's Avatar
Registered User
Join Date: Feb 2001
Location: Northern Calif Sacramento
Posts: 736
Sure sounds like the trigger points. Have you removed and cleaned them?

Run a points file through them lightly and spray it down with carb cleaner. Add a little cam lube on the leading edge of the rubbing blocks. I don't know of anyway to adjust these but if it runs better order a new set from our benefactors ($150). If the plastic covers for each point are missing they will get oily fast.
Happy Benzing
Darryl, Hill
2005 SL55 AMG Kleemanized
1984 500 SEC
1967 W113 California Coupe
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