Thank you. I'm looking for some photos to post and register. I'm hoping its just a valve issue

Thank you. I'm looking for some photos to post and register. I'm hoping its just a valve issue

Hello from Vashon Island in Washington I just read your blog site, learned a great deal. Do need some help and new to the Packardinfo site, I have a 1941 120 Convert Coupe, Restored a few years back, did a little engine work, rings and a couple of valves, then all the tune up stuff from carb to oil pump. Here is my question, I just checked my compression, car has been sitting a while, anyway, 50lbs on most cylinders, and 25-35 on 8 and 1.. Im thinking about rebuilding the engine, but I really want to do it in the car, we are on an Island and it would be difficult to get it bored and honed. any recommendations?? think I could mike it and replace with standard size pistons and bearings?? open for lots of advice..