I did a compression test today using a diesel compression tester I bought at Harbor Freight. Engine was fully warm. I removed all of the injectors and heat shields. I cranked with the throttle all the way down until the gauge didn't move anymore. Here are the readings:

Cylinder 1: 200 psi
Cylinders 2-4: 220 psi

I tried it a second time on one cylinder after installing the other three injectors but that didn't make a difference.

These numbers can't be right. It's my understanding that once you're under 300 the car won't run well at all. My engine is tired but it's not that bad.

Any ideas?

Thanks,

Scott

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Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)