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1983 W123 300D Turbo; 1994 W202 C280; 2005 W203 C230; 1984 W126 300SD
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68 Posts
Discussion Starter · #1 ·
Hi-
This is regarding my 1983 300D (123.133; 617.952); Mercedes. I've called the dealer (after exhaustive research on Web) trying to get the official word on which way the heat shields face when replacing/maintaining the injectors. Dealer didn't know. Researching common topics here and there said basically 1; Yes. You need them! & 2: 'Make sure you put them in the right way'. Right.
Think it's obvious which they face? I don't. Here's why:
The mere 56-58 ft. lbs of torque means shields won't split (but do get evenly crushed) when placed like a 'dome' in the injector mounting hole.
I've installed the shields both ways and I must say conical-side-up (like a dome) gives me a better seal it seems
O.K. Let me have it! Thanks to all who contribute to this topic (and other topics) that add to the great wealth of information available here.
Cheers!
-chris
 

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1985 California 300 D Turbo Diesel and '85 Federal 300D Turbo Diesel. '84 Cali 300D - SOLD
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360 Posts
^^^Thanks for the link^^^ Anyone have a link for a how to for doing compression tests?
 

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1985 California 300 D Turbo Diesel and '85 Federal 300D Turbo Diesel. '84 Cali 300D - SOLD
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360 Posts
^^^WHAT?^^^
 

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77 450 SL
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613 Posts
Use an adapter that goes into the glowplug port instead of the injector.
Elaboration on reason please. I've done all except for one of mine via injector holes. Gives me a chance to check glow plugs in circuit with the injectors out too.
 
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