ghillie
Private First Class
Posts: 13
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Post by ghillie on Jan 31, 2012 0:33:10 GMT -5
hello well i had my pinion gear go out on me today guess thats what happens when hardened steel gears meets pot metal pinion so i am looking for a new one dont want to replace motor it is under a month old and performs great i knew it was going to be a matter of time before the pinion stripped but what would you recommend and little tricks for changing without the tool would be helpful mine has the flat cut out with the set screw
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Post by trs90stang on Jan 31, 2012 12:43:40 GMT -5
hello well i had my pinion gear go out on me today guess thats what happens when hardened steel gears meets pot metal pinion so i am looking for a new one dont want to replace motor it is under a month old and performs great i knew it was going to be a matter of time before the pinion stripped but what would you recommend and little tricks for changing without the tool would be helpful mine has the flat cut out with the set screw Well, I lucked out and had a pinion come right off of one of my motors. I tried a trick to get the others to come off, but they wouldn't move. I'm planning on ordering about 8 new pinions for several motors I have that need new ones, along with the tool to remove and install them. I would be happy to help ya out once I get it if you haven't been able to get it taken care of by then. |
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Post by tcleck on Jan 31, 2012 15:31:28 GMT -5
I thought the D-type (set screw, flat face) came off after you took out the set screw. Of course, I've had that not work out, but I've had luck with using a cut-off wheel from the dremel and slowly grinding away at the screw. Gotta have steady hands though.  And like we were talking about on the Tidewater page, I'd suggest you shim your pinion gear to your bevel gear like in the guide. If you just drop a super strong chromoly pinion gear on there, I guarantee that the next gear that's going to strip is the bevel. |
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ghillie
Private First Class
Posts: 13
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Post by ghillie on Jan 31, 2012 19:41:03 GMT -5
I have a hardened steel gear set so i done thinkin have to worry about stripping that as easily but I will reshim
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Post by trs90stang on Jan 31, 2012 19:48:50 GMT -5
I have a hardened steel gear set so i done thinkin have to worry about stripping that as easily but I will reshim I wish I could remember the link to show how to shim, I have tried so many different ways, but the way I do it now, takes more time, but it's well worth it when you can shim the gears, put the shell back together before you install everything, and spin the gears and they just roll like butter, and there is no side to side movement. |
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ghillie
Private First Class
Posts: 13
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Post by ghillie on Feb 1, 2012 1:04:59 GMT -5
okay so i tested the gun with a different motor and lets just say not good looking high pitched scream when firing looking through the holes in the gear box i see no obvious signs of wear on the gears so i assume the piston that i have taken through hell in back has given out as well
EDIT
upon opening the gun i am finding no mechanical reason for the screach
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Post by trs90stang on Feb 1, 2012 7:48:31 GMT -5
okay so i tested the gun with a different motor and lets just say not good looking high pitched scream when firing looking through the holes in the gear box i see no obvious signs of wear on the gears so i assume the piston that i have taken through hell in back has given out as well EDIT upon opening the gun i am finding no mechanical reason for the screach Could be a couple of things, how well were the gears lubed? If it wasn't lubed well, that would cause some noise. What type of motor was it? If your other motor was high torque and the replacement wasn't that might cause it to make lots of noise. Battery power might be the cause. Last but not least, I would double check the shimming just to make sure nothing got out of wack. There's also a way to test everything without having to take the gear box apart, this way you can check it to see if it is the piston. I would just remove the upper receiver, this way you can still hook up a battery and see if everything is still moving. |
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ghillie
Private First Class
Posts: 13
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Post by ghillie on Feb 1, 2012 11:26:42 GMT -5
plently of lube bevel gear was a tad over shimmed am now using a classic army high torque motor until i can order my new pinion gear though i did have plenty of powdered metal so i cleaned that out but i am going to have to take it apart once again so i can shave the second to last piston tooth down on the piston i threw in there
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Post by tcleck on Feb 1, 2012 15:40:47 GMT -5
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ghillie
Private First Class
Posts: 13
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Post by ghillie on Feb 1, 2012 21:30:44 GMT -5
I used the with pictures to find how bad the bevel gear was shimmed the gear tilted hard towards the motor when the motor was put in...I snapped the head of one of the pistol grip screws...so I hope the grip can still come off without needing to cut anything
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Post by trs90stang on Feb 2, 2012 20:06:39 GMT -5
I used the with pictures to find how bad the bevel gear was shimmed the gear tilted hard towards the motor when the motor was put in...I snapped the head of one of the pistol grip screws...so I hope the grip can still come off without needing to cut anything Oh that's not good. It should still come off and you should be able to get the rest of the screw out as well. I have had several screws not come out on the gear box shells, and I was able to drill the head off them and then the rest of the screw came out okay. |
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