Hard cold starting 235

[mjs126]

What has previously been a very easy starting engine, O540 Cherokee 235, has turned into a nightmare. Nothing was changed on the engine prior to the issue. We have rebuilt the mags along with the impulse coupler; replaced the plugs (750 hours on old ones); inspected and cleaned primer injectors. The A/P is at a loss. Anyone experience such issues?

Thanks

Mike
N235MA

 

[JimC]

 

[Dennis]

 

[Chavycha]

 

[magman]

 

[Domenick]

 

[mjs126]

 

[mjs126]

 

[magman]

 

[killrocks]