Posted by dhermesc on October 19, 2009 at 12:20:56 from (24.248.193.103):
In Reply to: Smoking F150 posted by Les Shollenberger on October 18, 2009 at 18:08:22:
The 4.6 (the smaller version of the 5.4) had a huge issue with this on their 1990 to 1997 models. Age or wear (or both) would lead to shunken or cracked valve seals. The cars wouldn't burn all that much oil but they'd smoke like &*(& when every you started them or took off at a stop light. Problem was on those they were good for 5-8 years or 80-100K miles. I bought a grandma's Grand Marquis with only 10K on the engine when it was 7 years old. At 40K it started blowing blue smoke. $600 later and an entire new set of valve seals and it ran like new again.
Given that this has been like that since new I'd say the post below about an incorrectly installed valve seal that eventually gave out is probably correct. Should have screamed like *%&$ when it was under warranty now they'll tell you are SOL.
If you are getting blue smoke you need to get it fixed. The cats won't handle the extra oily smoke and will clog up - leading to even more expensive repairs.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let�s make one more addition to our series on hydraulics. I�ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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