Main/Crank Bearing replacement write up
#61
Wow. Camshaft bearings can just come right out of the Rover V8.....
In my experience with bearings/races of ANY type, when the race comes loose/spins out of it's pressed/beat in housing, then the female bore that excepts the bearing is toast?? Is this rover block in the pic bad now? What is going to keep a new cam bearing from walking back out again? Do you have to peen the bore for a tighter fit??
In my experience with bearings/races of ANY type, when the race comes loose/spins out of it's pressed/beat in housing, then the female bore that excepts the bearing is toast?? Is this rover block in the pic bad now? What is going to keep a new cam bearing from walking back out again? Do you have to peen the bore for a tighter fit??
#63
A Land Rover parts dealer told me that the cam bearings for this engine must be installed an then line bored which isn't possible up here in AK. A local machine shop tells me the Buick bearing can be installed as a direct replacement. I guess I'll try them and see what happens.
#65
Finally getting around to fixing the cam bearing that walked. Major PIA. Here's the bad bearing once removed. It was notched from rubbing the lifter.
The old bearing doesn't appear to be solid. Wonder if this is why the walk.
Made this tool to press in the bearing. Worked great.
Had to reach thru the cly 7 to hold the bearing and tool then thread the rod to the bearing support tool and the pull the bearing in with the nut from the front.
Amazing with 204,000 miles there is no ring ridge on the cylinders and hone marks are still vivid and there no sign of a slipped liner. Hopefully the hot idle tick was just from low oil pressure.
The old bearing doesn't appear to be solid. Wonder if this is why the walk.
Made this tool to press in the bearing. Worked great.
Had to reach thru the cly 7 to hold the bearing and tool then thread the rod to the bearing support tool and the pull the bearing in with the nut from the front.
Amazing with 204,000 miles there is no ring ridge on the cylinders and hone marks are still vivid and there no sign of a slipped liner. Hopefully the hot idle tick was just from low oil pressure.
#67
#68
It may have been like this for a long time and wasn't until it finally wore far enough notch in the bearing from riding agianst the lifter that the oil port was completely uncovered. The new bearing would have to do the same. There's not much clearance between we're the bearing lives and the lifter.
Will have it started tomorrow and will see what happens.
#69