Getaway.

Left Flipper the plunger sticks in the coil and makes a whistling sound. Flipper mainly works fine at full power but sometimes gets stuck at the top of the flip where the hold is.

I have taken apart the flipper assembly and have checked everything. Put new coil stops in and coil sleeves. I test and its ok then after a few games plunger is catching again.

Ok so now I take the whole assembly out. Replace everything except the bracket from a right flipper new spare also I did not replace the eos switch. The flipper has new plunger link and even a new flipper in case the shaft was bent. Got it so it didnt catch.

5 or 6 games later the whistling squeaky sound comes back and indeed the plunger is getting caught again hence the squeaky sound.

I have replaced with a new coil. Only thing I can think of is that the bracket assembly has moved to missalign the flipper hole through the bushing maybe from the wood warping or shifting slightly?

Any ideas? got me stumped.

Regards David

Hi markmon done all that earlier still same

Will check spring again I am sure it is. Something must be twisted...

Hi yes its the correct sleeve and its been changed twice... Only thing I can think of I have not changed is the bracket. I changed all 3 end stops (top middle and bottom) as 1 was slightly bent. I am thinking that the flipper shaft maybe coming through the playfield at an angle due to something warping or stretching. I have looked down and it looks straight. Very strange problem. Its only when I do the 2 end stop screws to secure the coil tight the plunger starts to bind on the inside of the sleeve.

Its a 100% mechanical one! When the left flipper sticks in the up position it does come down with the vibration of flipping the right flipper eventually. But when its up even switching the machine off so the coils are no longer pulling current it stays up.

Hi thanks for your suggestion. I used a proper flipper gauge. Yes I actually got one from a goody bag someone was selling on ebay

I will strip the flipper down another time today and meticulously go through everything with a microscope there has to be something I am overlooking. I will also take everyones suggestions and go through them one by one before ruling them out.

I think flipper link may be the issue here looks too big.

Regards David

Update

Looks like the coil sleeves I ordered are correct but 1mm too long hard to spot but stops the coil from being tight. I am progressing nicely. Also only 1 screw in 1 eos switch and was lopsided. Flipper metal tab that touches the EOS leaf switches was scraping to the side of the leaf switches instead of into them. Hence the squeaky mouse sounds. I have a problem with the flipper hold on one flipper nearly sorted report back later...

I was lucky I didn't create a fireworks display and short anything...

Update and conclusion.

Please check your coil sleeves before installing. Every coil sleeve I have off a different manufacturer is slightly a different length. 1.5 mm tolerance between 5 types. anything over .5mm longer causes problems.

Flipper hold issue I quickly sorted out due to the lopsided leaf switch as stated above.

Thanks for the pointers guys it was not easy to see what was wrong you don't expect parts to be defective when you have a whole bagful