PeachParts Mercedes-Benz Forum - View Single Post - BOOST & A Bunch of Bad ALDAs (& "disabled EGR melted that SD's engine")

veg_burner · #9 04-16-2005, 02:53 PM

i *had* boost from the intake manifold to overboost sensor switch behind the brake booster; no boost from there to the ALDA - got myself a new valve at the wrecker's and now there's pressure on both sides.
i pressurized the ALDA with a gas line tester fitted with a 1/4" barbed hose to 1/2" NPT connection and a bicycle pump. (i really need to get myself a mityvac...) on both ALDAs I have i can hear air escaping at the ALDA.
i was surprised that so many of the ALDAs i tested failed to hold pressure. i figured surely it wouldn't be hard to find a replacement... i wonder how many 917s are out there that are lacking boost power from a leaky ALDA.

yep, it's amazing to me how many "mechanics" know just enough to be confused... i'd never have any mechanic work on my car unless he is in line with what i read here. i guess it just surprises me when i know - ok i don't really *know* it so much as i've read it here which is why i can't quite hold out in a debate - more than a mechanic. i only knew very roughly the function of the EGR but you all say to get rid of it and so it's done...
Thankful for all the help & support served here daily...