Zenoah G-62 endplay
06-23-2017, 10:01 AM
#1
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Location: Prior Lake,
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Zenoah G-62 endplay
How much crankshaft end play should a G-62 have?
How is it adjusted?
Mine has about 1/16th inch of end play or more, another one I have doesn't have any that I can feel.
How is it adjusted?
Mine has about 1/16th inch of end play or more, another one I have doesn't have any that I can feel.
06-23-2017, 01:08 PM
#3
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G-62
I see the thrust washer in the exploded view, but I'm wondering what the spec is for end play?
The plane has been hanging from a PVC pipe rack I built years ago to hang my planes from the rafters in my work shop.
I found it on the floor, the hanger broke and damaged the rudder and a few other things, not serious.
Then I noticed the end play in the crankshaft, not sure if it landed on the prop or not.
Thought I better check it out before I run it.
The plane has been hanging from a PVC pipe rack I built years ago to hang my planes from the rafters in my work shop.
I found it on the floor, the hanger broke and damaged the rudder and a few other things, not serious.
Then I noticed the end play in the crankshaft, not sure if it landed on the prop or not.
Thought I better check it out before I run it.
06-23-2017, 04:46 PM
#5
+1 on the .010 endplay
If you have more than .015 endplay remove the crank and install the shim between the crankshaft and bearing , front or rear ,whichever end the bearing comes of the easiest .After reassembly rotate the crank several times and tap the crank with a hard rubber or brass mallet from both ends to center the crank in the bearings then recheck the endplay .Repeat as needed . If more than one shim is needed avoid stacking them on the same end of the crank if possible. Stacking can give erroneous endplay readings
If you have more than .015 endplay remove the crank and install the shim between the crankshaft and bearing , front or rear ,whichever end the bearing comes of the easiest .After reassembly rotate the crank several times and tap the crank with a hard rubber or brass mallet from both ends to center the crank in the bearings then recheck the endplay .Repeat as needed . If more than one shim is needed avoid stacking them on the same end of the crank if possible. Stacking can give erroneous endplay readings
06-24-2017, 04:34 AM
#7
Ralph is the man on all things engine .
The problem I have seen if the runout gets beyond .015 is that the ignition pickup can get out of track with the magnet on some ei engines. Magneto engine's would not have this isue.
The problem I have seen if the runout gets beyond .015 is that the ignition pickup can get out of track with the magnet on some ei engines. Magneto engine's would not have this isue.
06-24-2017, 09:35 AM
#8
My Feedback: (19)
The main thing with crank end play .... its just a nuisance and especially if a tight fitting spinner is used.
Loctite could also be used between the crank and the inner bearing races but that would make disassembly a real pain.
