So I threw a systema m100 and metal bushings into an otherwise stock TM m4a1 today. I've been inside gearboxes before but I've never shimmed one, so I thought I'd give it a go. I did it just like all the guides/ hints on the internet and I must have re-checked it a million times. not too tight, but not too loose. After the upgrade the mechbox sounds the same.. but at a higher pitch, almost like its whining.
what brand bushings did you get? if its the CA ones, those will make a very high pitched noise as they are larger than the holes in stock tm gbs yet smaller than the shafts of stock tm gears. i would recommend guarder bushings.
I went w/ Airsoft Elite bushings, which probably wasn't the wisest decision.
[quote="s0c0m_freak"]I went w/ Airsoft Elite bushings, which probably wasn't the wisest decision.
well one thing i do is when i do shim jobs is after shimming i put the pistol grip back on and in the GB have the electrical parts only and run the motor a few times and thats how i was able to minimize the gear sounds in my GB.
"1 shot 1 kill"
[quote="aka_sniper"]well one thing i do is when i do shim jobs is after shimming i put the pistol grip back on and in the GB have the electrical parts only and run the motor a few times and thats how i was able to minimize the gear sounds in my GB.[/quote]
so how does it sound now???
"1 shot 1 kill"
Freakin LOUD. and scratchy. Im buying guarder bushings right now.
new bushings just came today. they fixed the problem. sounds perfect :P
