Quote:
Originally Posted by bpu699
You make it sound so reasonable...  I appreciate that... Resealing it if nothing else diminishes leaks
If you look at the main bearings, and find slight wear... Would putting in new bearings and leaving the crank alone be reasonable? Or leave the originals? I ask as grinding the crank and getting undersized bearings seems a huge deal... What about polishing the crank?
With rod bearings, not sure I get the mechanics of it. If you take a peek at them, and replace with new same tension style bolts...why do you need to resize them? How do they change shape or orientation, if nothing else is changed? If it needs to be done then so be it...but why?
When you take the crank out, you take it to the machines shop and they resize. Then, you have to undo the bolts, and retighten again on the crank. How is this disruption any different than taking them off, peeking, and putting them back on. In both cases, you undid them...
I absolutely understand that a resized crank is better than one that isn't... But then, shouldn't an unresized crank with new bearings by definition be better that whatever is in there right now?
What am I missing? |
BPU,
I just delivered my 14th engine rebuild project for a Pelican part member. Bruce Abbott is one of my mentors and advisers for engine rebuilding. He has a lot of engine rebuilding experience that we could only dreamed about. I was in similar state of mind before with only a couple of engine rebuilds top end. Once you have opened or splitted ithe crank case for further inspection, you will realize later that there is nothing to worry about.
Learn to over come your fear and anxiety. As demonstrated earlier, if everything looks fine, resealing the case does not cost much specially if you are doing the work. You are over thinking this simple mechanical endeavor. BTW, got another motor to be opened this fall. I will give you a brotherly advise to get you started. Chose or select a mentor that you feel comfortable to talk over the phone or somebody nearby. I called Bruce or Mike B. or John W. every time I got in a situation that made me unsure what to do next.
Your first engine would be stressful and nerve wrecking at the beginning. But with all the help and assistance from this forum you will find out that there is nothing to worry about this wonderful experience. And enjoy the time doing it.
Tony