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Old 12-24-2010, 01:07 AM
Rahulio1989300E's Avatar
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Replacing Fuel Injectors/Seals, Intake Boot, Fuel Distributor ORing What Else? (M103)

Hello,

This evening after work, out of the blue, I decided to take the fuel distributor and plenum off the M103. This involved by first removing the fuel injector metal lines and then other various fuel connections, a vacuum line, and an electrical connector, etc.

To replace the intake boot, do I need to separate the two halves of the assembly that the fuel distributor sits on? The old boot is pretty stiff and definitely should be replaced. The injectors are original and probably shot, but I will keep them as spares. Should I replace the gasket that the throttle body sits on? What else besides all now easily accessible vacuum lines?

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Old 12-24-2010, 01:30 AM
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Yes the two parts need to be separated. Take the opportunity to completely clean the plunger ensuring there is no dirt and it depresses without any sort of binding and center the plate.
I also recommend getting as much dirt and debree out of the intake manifold. When you open the throttle valve attached you'll notice a swamp of horror below. Just soak some of it up as best you can.

Some more info and pics here:
http://w124-zone.com/articles.php?article_id=23

With the fuel distrib removed, check your motor mount on that side...it can be accessed 10x easier with it removed.

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