An update for those of you who followed this saga from the beginning. I have scoured the Internet on this subject, which has answered some questions and led to numerous more questions. After I found out that I could turn the eccentric on the front of the camshaft sprocket by using a long wood dowel inserted in the fuel pump hole, I decided that an eccentric that turns when the sprocket is not turning is an eccentric that has a loose bolt, and therefore I must open the timing case. Then, upon learning that there are two kinds of eccentrics, the one-piece and the two-piece (Randy Bennell wrote about this), I decided that there is hope and I examined this again to see if I could determine if this engine has the one-piece or the two-piece. I couldn't tell, and I do not know of a way to differentiate. It is my understanding that in the two-piece, the outer section rotates around the inner section.The oil lubricates it. In the one-piece, the eccentric is fastened to the cam sprocket with a bolt and held statioary with a metal dowel/pin. Clearly, the one-piece should not rotate. If it does, it means that the bolt might be loose and definitely that the the dowel/pin is not in place. With the sprocket not moving, I was able to rotate the eccentric with the wood dowel several full rotations. If this has the two-piece, I wondered, could the ability to rotate be "normal"? As it rotated, it felt smooth, like an outer bearing race, not rough like I would expect from a piece rotating because of a loose bolt and an ineffective dowel/pin. I also noticed that there was some looseness in the eccentric. I decided to find out if the cam sprocket was loose by trying to move it with a screwdriver. It seemed tight. The timing chain seemed kinda loose.Then I inserted the wood dowel again as I rotated the engine with the starter and found that I got a slight in and out movement. Even though days before, I had bolted the new and old fuel pumps on the engine, and neither would pump any gas out of a can, I thought I would try that again. The old pump didn't suck at all this time. I was surprised to find that the new pump did suck gas this time. So I hooked it all up and the engine started and ran fine.So now I am confused. Why on a previous try did the new pump not suck gas out of a can? Did fiddling around with the wood dowel change something? Did my moving the eccentric cause i to catch on the dowel/pin? Is this just a temporary fix that won't last? I cannot draw any conclusions with certainty. I wrote into a Ford Forum and presented this case. I am frustrated in asking questions of obviously knowledgeable individuals who contradict each other. For example, I still do not know if this is an "interference" engine. Several say "yes" and several others with equal convictions say "no". They all seem to agree on one thing - all recommend I open the timing case. Is this is why many folks buy a new car instead of repairing an older model?
Jerry 240D 72 Ford F250 __________ Information from ESET Smart Security, version of virus signature database 7070 (20120419) __________ The message was checked by ESET Smart Security. http://www.eset.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
