Crank scraper maybe little too tight?
Posted: Sun Feb 09, 2020 8:18 pm
The windage trays maybe a little tight in this engine?
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Yep, those were rebuilt. I don’t recall those marks after the rods were rebuilt, but that doesn’t mean anything.Dave Koehler wrote: ↑Sun Feb 09, 2020 8:37 pm Just to cover the bases did you have the rods resized lately?
I think you will find all the rods have that rub mark.ptuomov wrote: ↑Sun Feb 09, 2020 8:40 pmYep, those were rebuilt. I don’t recall those marks after the rods were rebuilt, but that doesn’t mean anything.Dave Koehler wrote: ↑Sun Feb 09, 2020 8:37 pm Just to cover the bases did you have the rods resized lately?
Yes. The marks were a mystery to me, but if they came from resizing the rods then that’s a logical explanation. I threw out the windage tray hypothesis, even though the geometry doesn’t really make that explanation terribly likely.Dave Koehler wrote: ↑Sun Feb 09, 2020 8:49 pmI think you will find all the rods have that rub mark.ptuomov wrote: ↑Sun Feb 09, 2020 8:40 pmYep, those were rebuilt. I don’t recall those marks after the rods were rebuilt, but that doesn’t mean anything.Dave Koehler wrote: ↑Sun Feb 09, 2020 8:37 pm Just to cover the bases did you have the rods resized lately?
Plus your scraper is cut to clear the big end of the rod is it not?
I think the scraper/windage tray sheets clear the big end, where the geometry is tighter.Kevin Johnson wrote: ↑Sun Feb 09, 2020 8:25 pm Trim back the drawer handles a little. Should be fine.
That’s where the marks came from, so mystery is solved. Windage tray comment was just for fun, they obviously can’t touch the rod so high up.