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Turbo adjustment on 87 300 SDL
Hey,
I've seen information posted on how to adjust the turbo and ALDA on the earlier's 80's turbodiesel engines. I haven't really seen much of anything for the 6-cyl that comes in the 300 SDL. Do the same procedures apply? Has anyone overboosted a little? Thanks for the info. -m
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Now: 2018 Tesla Model X 1999 S500 Grand Edition 164k 1992 300D 2.5 Turbo 287k 2005 E320 4MATIC wagon 1991 Alfa Romeo 164L 99k (sleeping for a while) Then: 96 Lincoln TC, 93 Lincoln TC, 87 560 SEL, 87 300 SDL, 80 300D, 89 560 SEC |
#2
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Don't.
These usually produce 12-13 psi already, leave them alone. If you have poor power, look for plugged trap oxidizer (my brother just had his changed, 87 300SDL, 145,000 miles), clogged boost control lines, etc. Bad turbo will also give low power. Wastegate usually isn't the cause, but I don't know of a good way to test a turbo other than to blow compressed air into the turbine and see if it generates pressure. Boost pressure can be check with a gauge "t'd" into the boost control lines. Certainly, I'm not equiped to check speed, balance, bearings, etc. Unless the catalyst is shot, you won't see much smoke on these cars, however much they are really making, so adjusting the ALDA would be difficult without proper test equipment, to say nothing of the fact that it will need to be removed for each adjustment! (unless you take the intake manifold off each time, that is!) Peter
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1972 220D ?? miles 1988 300E 200,012 1987 300D Turbo killed 9/25/07, 275,000 miles 1985 Volvo 740 GLE Turobodiesel 218,000 1972 280 SE 4.5 165, 000 - It runs! |
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