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Troubleshooting / Re: m4 firing problem in semi
« on: February 17, 2010, 10:50:15 AM »Quote from: "Whiskey11"
Quote from: "War savage"You need to take it apart again and make sure you intalled the gears along with the tappet plate correctly (timing is off). Make sure your tappet plate is not cracked or worn down. Make sure your springs for the anti rotation lever is in correctly. It sounds like the gears are continuing to rotate causing your piston to pull the nozzle back and double feed. There's a lot of steps to trouble shoot.
You need to sit down with lots of time and just check it out. Have you taken your gearbox apart before? You need to have a pretty solid memory and knowledge of how everything was when you took it apart. It's an issue that you need to put your hands on to figure out.
Sorry couldn't be more help. I would need to physically look at it. 90% of the time, these issues are solved by someone actually getting into it themselves and trouble shooting. Just takes time.
Gearbox timing, the worlds biggest myth... I'd just like to point out, that the only "timing" things that need to be done when reassembling a gearbox are to make sure that the tappet plate nub is not pulling back the tappet plate and that the sector gear's teeth are not touching the piston. Thats it. Irregardless of where the sector gear's...
Yes...I knew I would catch hell for saying "timing is off". Thats why it's in parenthases. Let me just say this. Speaking from experience, I once did install a new heavier spring, metal upgraded spring guide w/ball bearings and ball bearing piston head. The addition of the bearings caused the spring to compress itself so much it stopped the piston from retracting all the way back. Which in return stopped the "timing" of the piston to be released with the sector gear, causing damage to the piston. Also causing a drop in FPS due to lack of enough air entering the cylinder. Hence loss of FPS.
So to mention, "timing" is always something you may consider when checking overall function of a gearbox.
As I mentioned before. It's something that takes time to trouble shoot. Do check everything that was mentioned by Whiskey11. Along with the compression of the spring. If you added ball bearings to the piston head and spring guide, you could be further pre-loading your spring and stopping the piston from retracting causing bad "timing".
And one other note: Whiskey11. The use of the word "Irregardless". There is no such standard word as "irregardless"... it is simply "regardless". The origin of irregardless is not known for certain, but the speculation among references is that it may be a blend, or portmanteau word, of irrespective and regardless, both of which are commonly accepted standard English words. By blending these words, an illogical word is created. The nonstandard word irregardless is redundant. It is a double negative. The prefix ir- means not. People intend irregardless to mean without regard for some information, or without taking certain information into consideration. But it would really mean "Not [ir-] without regard" [regardless].
When used, the word irregardless carries the unfortunate sense that an uninformed person is attempting to appear learned. Regardless of what others may say, avoid "irregardless".