1988 Mazda B2200 B2200 Air Filter Flooded with Engine Oil

Tiny
MAXA10E06
  • MEMBER
  • 1988 MAZDA B2200
  • 4 CYL
  • 2WD
  • MANUAL
  • 15,100 MILES
Recently experienced that my engine was losing about a 1 Qt of oil after a short 20 mile drive. Discovered that oil was collecting in the air filter breather cap. In fact so much oil that it was being feed to the exhaust line through the air filter breather cap (reed valves in breather controls exhaust gas remixing). Need to know what could cause such a large amount of oil to end up in the air filter. Since 140,000 miles the engine has used 1 Qt of oil every 2,500 miles. This was acceptable for a low use weekend lawn and garden delivery truck. But now I fear the engine has serious damage that obviously can not be ignored. Any insight would be greatly appreciated.
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Saturday, March 14th, 2009 AT 6:35 AM

3 Replies

Tiny
BPETERS2
  • MEMBER
I think you need a ring job- I had the same thing twice, after 160,000 or so- The rings turn to cheese. The smoke will get so bad after a while that people will report your truck on fire - happened tdo me the first time! The blow-by is pressurizing the system, and will ultimately blow out the front or rear seal. Happened to me in January, at -15 degrees! Check your compression with a good tester-
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Sunday, March 22nd, 2009 AT 10:08 PM
Tiny
MAXA10E06
  • MEMBER
Thanks for the reply. It is as I suspected time for a remanufactured engine. Yes, the engine went through the heavy smoke phase but suddenly stopped the heavy smoke about a 1,000 miles ago. I'll check the compression as you suggested but most likely it's time to pull the engine. Thanks for the share.
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Monday, March 23rd, 2009 AT 2:02 AM
Tiny
BPETERS2
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If the smoke has stopped, which I don't think it should have, it might be something else. I would keep an eye on the oil infiltration. If that is still occurring, check compression. Should be about 165 or so. If there is more than 20% differance between the cylinders, then you are developing a problem. Remember too that the oil is starting to clog up the catalytic converter with soot/carbon. If that gets too bad, the exhaust will all be going to the air cleaner through the EGR tubes, and may blow the hoses off the air cleaner. This is very surprising. The engine will REALLY bog down, lose power, then POW, you suddenly sound like a Russian tank. The EGR tubes will have to be cleaned out, in addition to the EGR valve on the manifold, and the air cleaner. Also, check the front and rear oil seals, as the pressurized oil system may be forcing oil out through them, and they will fail suddenly. A reman engine is going to run about $2000, by the way. Have just gone through all of this, and decided to rebuild instead. THAT cost $1100. Good luck!
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Monday, March 23rd, 2009 AT 8:40 AM

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