Quote:
Originally Posted by tbirdtbird
Inserts should cost no more than babbitting, maybe less. Sounds like the guy just shoved an extra 700.00 in his pocket
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Naturally I can't speak for everyone else but for us, there is more work/time involved in correctly machining a block for inserts. First, there is the task of pinning the caps. Also machining for the tang. When I cut babbitt bearings, the boring process goes quicker but when I machine the cast iron block, my cutter feed rate is much slower, and you must wait for the block to be cool on the final cut to ensure you are within .00025"+/-. Then the thrust bearing pockets much be cut on the block and cap, which takes additional time over cutting babbitt. Also, the thrust washers must be fitted and pinned. You also have the added expense of the bearings over babbitt, -and the cost of the inserted connecting rods over poured rods. Again, others probably have a difference of opinion, but for us there just seems to be more time/expense involved.