I thought some NA models had an altitude compensator

Sixto
87 300SDL

Yes, they do, but AFAIK, not adjustable for more go-power like an alda.

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Palangi

2004 C240 Wagon 203.261 Baby Benz
2008 ML320 CDI Highway Cruiser
2006 Toyota Prius, Saving the Planet @ 48 mpg
2000 F-150, Destroying the Planet @ 20 mpg



TRUMP .......... WHITEHOUSE
HILLARY .........JAILHOUSE
BERNIE .......... NUTHOUSE
0BAMA .......... OUTHOUSE

What is involved to shim an ALDA? I've never tried to pull one off to check it out.

If you have a 617 it's easy enough to use the set screw atop the ALDA. You can add shims between the ALDA and the IP to preserve the original setting. Shims are generally a must for the 60x turbo engines with the intake manifold just above the ALDA.

Sixto

you put a thicker or thinner shim on it...it basicly sets your adjustment range on the ALDA....but they are not easy to find in different thicknesses.

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Proud owner of ....
1971 280SE W108
1979 300SD W116
1983 300D W123
1975 Ironhead Sportster chopper
1987 GMC 3/4 ton 4X4 Diesel
1989 Honda Civic (Heavily modified)
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Section 609 MVAC Certified
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"He who fights with monsters might take care lest he thereby become a monster. And if you gaze for long into an abyss, the abyss gazes also into you." - Friedrich Nietzsche

To be honest with you, I never located a source for the seals. That link is from Rusty at www.*************** so he may be able to help you with that. I use silicone grease to lube, if the seals are still flexible, and reuse if possible. What helped the most was resealing the housing with a non-hardening sealant outside of the large o-ring.

As for the smoke, I have never been able to get much out of mine. I will be looking into seeing what the boost pressure is. Maybe the wastegate spring has weakened, after 350k miles. I used to have a link for adjusting the wastegate but it no longer functions.

I guess the lesson to learn in this is either print a hard-copy or save the information to your computer.

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Sam

84 300SD 350K+ miles ( Blue Belle )