2005 Ford Escape Hybrid Q&A
2005 Ford Escape Hybrid Question: Found bad rod bearings in cylinder 4 but other seem fine. Should I replace all?
Pull another rod cap off, if the journials (what the bearing runs on) if both crank throws dont look the same and that one that has the "bad" bearing is the least bit rough or scored,, the crankshaft will to have to be removed for machine work,,,,,you know what that means!! If you just install another bearing, it might run 10 minutes before it too is destroyed!!! Sorry, but without seeing it, wish i had better news. - pushrod
save time and do a complete rebuild - globalhelper
The real question is, why did that bearing fail? The specification is 1.967-1.968" and production repair would be 1.957-1.958" which would require a .010 undersized bearing. Trying to use plastigage without resizing the rod and polishing the crankshaft on a machine which ensures that both are perfect circles is a miss-use of the product. You could easily line up a high spot and think your clearance is OK when in fact you have way too much 90 degrees of rotation away from that point. The biggest problem is how sensitive the upper end of the engine is to oil quality and starvation. So I'll ask again, why did this bearing fail? You need a real good answer for that or else you are doing a lot of work in vain. Was there a service issue and the wrong oil used or service over extended? Was there a consumption issue? One of the other responses really does have the right answer, complete rebuild IMO. A machinist needs to polish the crankshaft, resize it and fit bearings if necessary. He should be checking the line bore of the block and resizing the rods, and honing the cylinders in prep for new rings at the minimum. Plus the cam bearing journals need inspected to see if the head is still serviceable or not. - cardocIII