Your mention of the compression ratio (23:1) made me wonder if the correct
Compression can be calculated by multiplying the 23 X's 14.6 (normal
atmospheric pressure) = 336psi ??
Or does that make *no* sense at all?
Sincerely,
Larry T (78 240D)
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----- Original Message -----
From: "Peter Frederick" <[EMAIL PROTECTED]>
To: "Mercedes mailing list" <[EMAIL PROTECTED]>
Sent: Sunday, November 27, 2005 12:03 PM
Subject: Re: [MBZ] OT older VW diesels
The engine in the old VW Jetta will be the Volvo/Renault/VW engine --
23:1 compression ratio, prechamber, solid "lifters" -- the cam runs on
top of the valves directly, acting on a steel disk in the "bucket" on
top of the valve, just like Volvo gassers.
They have a rotary distributor pump, and that is the only problem I've
had. They are sensitive to low sulfur fuel, among other things.
Drive gently until it's warmed up, since it has a "cold start" device
that advanced the timing cold. Hard driving cold will wear out the
upper cylinders.
Otherwise, they tend to run about 200,000 miles between rebuilds.
Peter
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