Posted by engineoops on March 01, 2016 at 09:06:57 from (107.220.205.68):
In Reply to: 2008 GM 5.3 with AFM posted by jeff nwoh on February 29, 2016 at 08:19:07:
Don't have answer to all your questions , but the lifters are roller lifters and very seldom hurt the camshaft . just put the AFM lifters in daughters 07 GMC AFM , and they were 54.00 each (8 AFM lifters and 8 regular lifters in this engine) . rock auto had the AFM lifters for 22.00 each but we were in a hurry. Problem started when they put 10w30 and Lucas oil stabilizer in the engine and it went haywire .ran bad ,shifted bad and lost 1 lifter . so proper viscosity is important 5w30. with the thick oil the pressure went up to 40 then slowly down to zero .proper oil and it's back to normal . seems there are some fine screen in the AFM solenoids and one under the oil pressure sending unit . I hope someone chimes in to tell if you could put all non AFM lifters in and disable AFM with device or reprogram . some guys disable AFM by removing sensor wire on brake booster or plug in device found on the net , but have not heard if all non AFM lifters can be used . hope this info helps someone . most people just get the lifters replaced and drive on. Eo
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Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
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