No Compression

by **Crono0001** on Sat Jun 18, 2011 1:09 pm

Piston cycles, tappet plate cycles, no air leak out of the cylinder or anything...
But no air compression. I hold my finger in front of the nozzle and barely anything comes out.
(This was the M4 with the ACOG today that was just dropping bullets)

by **mahabra695** on Sat Jun 18, 2011 1:18 pm

Torn bucking?

by **AlexDean** on Sat Jun 18, 2011 2:15 pm

mahabra695 wrote:Torn bucking?

the problem is within the gearbox, has nothing to do with anything outside of it including the bucking.

by **mahabra695** on Sat Jun 18, 2011 2:39 pm

I misunderstood his post, I was only saying cuz the bbs were just rolling out of the barrel.

by **quadro** on Sat Jun 18, 2011 2:58 pm

Replace the piston head o-ring with a #14 o-ring from ace hardware and put some teflon tape around the cylinder head to make it seal better. If this doesn't work then look into getting a new air nozzle with an o-ring on the inside so it seals on the cylinder head better.

by **AxisOfOil** on Sat Jun 18, 2011 5:03 pm

If you can get compression by hand, and not when cycling, it is usually the piston head.

Clean the grease off of it, replace the oring. Then LIGHTLY lube it, without filling in the vent holes.

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