Compression test done.....with not so good results.

#1-136
#2-120
#3-145
#4-95, W/oil 105
#5-140
#6-135

So not bad except for #4. Adding oil didn't seem to do much, would that mean its a valve problem? Or do I have to take it all apart to find out?


58' 3200 235 3-speed/OD