Scott DellAngelo
Well Known Member
I was re-reading the overhaul manual and saw a line about installing the case so that the numbers are pointed towards the sump.
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Question about assembling rods onto crank
- Thread starter Scott DellAngelo
- Start date
godspeed
Well Known Member
connecting rods
Scott, we are building my engine 0320 now also , the a&p that is doing it said
it must be done this way.. the numbers 1,2,3,4 I saw nothing that would
have made any difference either.. but lycoming says and the ntsb & faa do
look for these issues on engine failures , and he made a big deal about, anyway I am not going to argue with 30 years of success building engines..
when doing the balance ect.. he said, you can mix pins and pistons but the rods much be in the proper position and proper direction..
I have built alot of drag motors, hot street rods , and one circle track car, all worked well, (except a porsche 911 motor I built failed) so I am keeping my mouth shut and doing exactly what the a&p ,manual, says.. I can't pull off to the side of the road as easy in this project.. the porsche motor was very complicated I wouldn't be a porsche machanic for nothing.. great cars but they are a pain to rebuild.. I would loosen and use the same nuts, they have not been stressed yet.. cheap insurance (26 $ bolts 4 $ nuts
thats my take on this subject..
Danny...
Scott, we are building my engine 0320 now also , the a&p that is doing it said
it must be done this way.. the numbers 1,2,3,4 I saw nothing that would
have made any difference either.. but lycoming says and the ntsb & faa do
look for these issues on engine failures , and he made a big deal about, anyway I am not going to argue with 30 years of success building engines..
when doing the balance ect.. he said, you can mix pins and pistons but the rods much be in the proper position and proper direction.. I have built alot of drag motors, hot street rods , and one circle track car, all worked well, (except a porsche 911 motor I built failed) so I am keeping my mouth shut and doing exactly what the a&p ,manual, says.. I can't pull off to the side of the road as easy in this project.. the porsche motor was very complicated I wouldn't be a porsche machanic for nothing.. great cars but they are a pain to rebuild.. I would loosen and use the same nuts, they have not been stressed yet.. cheap insurance (26 $ bolts 4 $ nuts
thats my take on this subject..
Danny...
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Scott DellAngelo
Well Known Member
After the paint on everything drys
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Might not be an issue on Lys, but on some auto motors the piston pin boss is offset slightly forward or aft of the center of the bore. Sometimes the rods are offset in a similar fashion so that the big end and little end are not quite in line with each other. This means that the rods should only be installed one way.
Steve Zicree
Steve Zicree
