coin mech fault

[pandaanda]

I have bought 4 second hand bouncy ball/ gobstopper machines and 3 of them all have the same problem with the coin mechs, when you put the 20p in it very often either falls straight through before you turn the handle or as soon as you start to turn it ?, I assume this must be a common problem with these machines as 3 out of the four are all the same! So was wondering if anyone knows of a fix or has any good mechs for sale.
cheers
Pete

[FlintVending]

errrrrrrr there are a dozen or so makes of this type of machine and unless you can find someone on here who is telephaphic any help will be nothing short of guesswork!
If you dont know the make, put a picture of the mech up on here

Job Done

[glennborthwick]

it sounds like the holding clip which the 20p sits on has come unscrewed and dropped off. I bet with my soothsayers hat on they are purple machines with a single normal top key.

[pandaanda]

Sorry guys was still in bed half asleep, they are beaver mechs.

[glennborthwick]

take mech out , check backplate screws are in tight enough