I dont see how a loose connection to the air cleaner would reduce boost,
it would only suck in dirt and unfiltered air.
Royce Engler wrote:
My 300TD has been running REAL rough for a while. The other night I had
a flash of intuition and thought I'd better check the connnection from
the turbo to the air cleaner. I had taken the air cleaner off a few
weeks ago to adjust the valves. Sure enough, it had not been
tightened. As a result, whenever I put my foot into it and the boost
pressure built up, it blew past the loose fitting and made a sound like
a relief valve lifting. As you might guess the resulting loss of boost
pretty much eliminated any ability to accelerate.
I also did an exorcism on the A/C and have pretty much eliminated the
demonic possession that was causing it to suddenly blow hot. A/C seems
to be doing a relatively good job of cooling, and only occasionally goes
crazy. I still suspect something in the mono valve, even though my
indie said he checked it. He did think it might have a weak
solenoid(?). Anyway...I have bigger fish to fry and if I can hold the
A/C demons at bay for a while, I'll focus on power issues.
Royce Engler
1985 300TD Turbo 265K
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