M14 Posted June 30, 2007 Report Share Posted June 30, 2007 I recently stripped a stock TM plastic piston in my Inokatsu M60A1 and was wondering if the metal pistons, specificly the systema one, are any good. Do they wear out the gears faster or anything bad like that? I replaced the stripped piston with another plastic one and thats what I am using right now. Link to post Share on other sites
ARadam6696 Posted June 30, 2007 Report Share Posted June 30, 2007 Well most people feel its better to have a cheap poly piston wear out than a more expensive piston and possibly a gearset. If your using it in a support weapon than I would say no. If you fire that much then you risk damaging your piston and possibly your GB shell. Leave metal pistons for tougher springs and get yourself a nice polycarb. Link to post Share on other sites
Perch Posted June 30, 2007 Report Share Posted June 30, 2007 Strange, I have so far stripped no TM-Piston in one of my guns, they they even work fine with hot springs, 30m/s above Forum Limits Link to post Share on other sites
Stealthbomber Posted June 30, 2007 Report Share Posted June 30, 2007 As has been said, the weakest link in any system will be the one that breaks. If you fit a metal piston in your gun you fill find that the spur gear and/or bevel gear will mangle themselves the next time the gun jams or some other bad thing happens. On that note, you need to ask yourself why the piston stripped. Did you get a BB jam which caused it or was it just fatigue due to the level of power you're running at? If it was a jam then you'll break something else next time. If it is wear and/or fatigue then maybe a metal piston is the way to go. But... Support weapons are supposed to lay down lots of fire. Having a heavy metal piston rattling around for long periods might cause premature damage to your gearbox housing. I forget who but somebody (madbull?) now make a poly piston which has about 8 metal teeth. One of these might be the ideal solution for you. Same weight as a poly piston but with metal teeth. Link to post Share on other sites
Chrissyg Posted June 30, 2007 Report Share Posted June 30, 2007 Well, 2 Inokatsu M60s that I had to repair both had the pickup gears on the utter #### orange pistons that are standard in the Inokatsu. I've replaced them with stock TM pistons and they run even better than before. The Ino standard is really badly made, id reccomend a TM (if you havnt already changed it to a TM). Link to post Share on other sites
Rob15 Posted June 30, 2007 Report Share Posted June 30, 2007 If you read the OP he says he stripped a TM piston in it, so i'm guessing he has already changed to a TM piston Link to post Share on other sites
Rapier Posted June 30, 2007 Report Share Posted June 30, 2007 my sugestion is get a new Polycarb piston and double check your shimming. Link to post Share on other sites
M14 Posted June 30, 2007 Author Report Share Posted June 30, 2007 I had put a TM piston in when I was upgrading the spring (M120) and cleaning the gun out. Right now a CA piston is in the gun, it was the only spare piston I had. I will probably put a polycarb piston in it soon. The piston stripped just from being used every weekend and the high ROF. Link to post Share on other sites
Perch Posted June 30, 2007 Report Share Posted June 30, 2007 then give the Deepfire Tituanium Teeth Piston a go Link to post Share on other sites
Rapier Posted June 30, 2007 Report Share Posted June 30, 2007 Or not. That will shred the gears FAST. Best bet is to get one of the pistons that is missing the second tooth, it is a little more forgiving on high ROF guns. Link to post Share on other sites
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