I took my failed lifter apart to see how it works. Then got on wikipedia for more information. I found this interesting information, just thought I would share with those who, like me, know what they are, sorta, but don't really understand the entire process. I bolded the stuff I found interesting.... Now I think I have a better understanding of what "preload" is when adjusting my roller rockers. So basically, sounds like the "hydraulic" portion of the equation is just to minimize the firm hard pressures that the valvetrain would undergo if there was no cushioning, and I am assuming that "more tap equals quicker damage to parts". Finally, a pic of a disassembled hydraulic lifter, for those who have never seen one...
that little piece of keeper that is at the left. where the bend at the end is. is what broke and ruined my last engine. seized the oil pump.
That little flat piece? or the spring? Either way, hate to hear that an engine cratered because of one small part failing on a $4 lifter But, I guess my engine failed because of a $4 lifter...
Cool pic and cool car My bro had a mav just like that one when I was younger. Same color too. I remember him burning tires from every stop. My dad had a 4dr comet the same color at the same time. Both cars ended up in the junk yard
If this is true then the lifter shouldn't bleed off and allow the valve to close when the engine stops turning, right? I only ask because when I turn my engine over with the starter and valve covers off the valve all open and close like they should. When the starter stops the valves that are open will slowly close. Just curious if this is normal or not.
When the engine isn't runniing the oil pump doesn't pressurize the oil galleries, so then oil will bleed out around the lifter bore.
I need to sound stupid here, and I hope you guys are correct. How is this causing my carb stumble? Non-technical terms please, so I can understand the language
stumble I believe what Naford meant is that if that's what your lifter looked like , you had an engine miss caused by that valve not operating properly..not caused by any carb problem...but I could be and occasionally have been wrong
I understand that, but what I don't get is how a 7 cylinder car (mine with one intake not working, maybe it was 7-1/2 cylinders ) would stumble. The carb doesn't know that it is 7 or 8 cylinders. or 6 or 10 for that matter. What would cause the stumble to occur as opposed to the working 7 cylinders just running 1/7th richer (let's not get into the math, you all know what I am getting at here).
