I recently had a tooth come off one of the upper gears in the Alpha G2 drive. I noticed a slight change in vibes I guess right when it happened,not far from home dock. I pulled drive and found upper gears bad. Interestingly to me at least,no metal got into lower drive. I suppose because i got on it so fast. I checked this out by repeat flushing with light oil, pretty much nothing ever showed up in lower. The upper was full of metal particles..I did not dissassemble the lower. After rebuild and an hours running I checked again(I put a magnetic plug in top hole during rebuild as well as bottom one). Anyhow all seems good metalwise.Nothing on magnetic plugs.
QUESTION I have is I am noticing a slight gear noise,sort of a light whine or whirring,when Im idling in neutral. It goes away when I put it in gear. Can anyone tell me if this is normal.Its not loud,really only just audible.if you say stand on dock near stern while idling. I ve had Mercruisers for many years and dont think Ive noticed this noise ever before.
I did the rebuild myself,have done a couple before. Did all the shimming and preloading correctly Im pretty darn sure. I actually checked the shimming on old gears before disassembly,they were on spec,and duplicated results with new gears.I did use the shimming tools. Even did a kind of backlash check after reassembly,all seemed good. Wonder if its normal for new gears to do this noise thing?Ive got 2 hours on it now and no change.
QUESTION I have is I am noticing a slight gear noise,sort of a light whine or whirring,when Im idling in neutral. It goes away when I put it in gear. Can anyone tell me if this is normal.Its not loud,really only just audible.if you say stand on dock near stern while idling. I ve had Mercruisers for many years and dont think Ive noticed this noise ever before.
I did the rebuild myself,have done a couple before. Did all the shimming and preloading correctly Im pretty darn sure. I actually checked the shimming on old gears before disassembly,they were on spec,and duplicated results with new gears.I did use the shimming tools. Even did a kind of backlash check after reassembly,all seemed good. Wonder if its normal for new gears to do this noise thing?Ive got 2 hours on it now and no change.