1988 Mazda B2200 smokes for 10 to 15 secs on start up

1988 MAZDA B2200
135,000 MILES • 4 CYL • 2WD • AUTOMATIC
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1988 Mazda B2200 Cab Plus 2.2l mileage: 135,000. The vehicle smokes just for ten to fifteen seconds after starting then goes away. This happens only when cold. I gave the vehicle a compression test and cylinders 1, 2, and 3 have 160 Psi and 4 has 165 Psi. The plugs are clean and are burning even, no oil on them. Warm starts are fine. One thing that is strange is that the smoke starts a "few seconds" after startup and not right away. Should I worry?
Dec 1, 2010 at 7:16 PM
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We have found similar problems with other cars with approximately 60,000 or more miles. Replacing the valve stem seals reduces the oil use. They are made out of rubber and over time become hard and brittle and no longer seal.
Dec 1, 2010 at 7:41 PM