Reply To: Stripped Spark Plug Hole?

[Yellowstone]

Thanks! So, I tried to take off the bolts today, carefully, and one broke off. Fortunately, or maybe not, only the head did. Meaning the screw is still solidly into that hole. The bolts I did get out, lots of rust was coming out. So I am going to try it with the head on when I get the helicoil kit. Grease up the tool to catch the shavings. I see some guy in a youtube video “rinsed” out the inside of the head gasket to get any shavings. I couldn’t tell what he was using but it looked brownish liquid from a huge syringe. I hesitate to do that but was thinking I could tilt the motor down and try and vacuum anything out with the shop vac. I should have the spark plug specific kit and red silicone by tomorrow so more to come Wednesday probably if I get it as I also saw online you probably want to wait at least 24 hours before starting the motor afterward.

I also started casually digging into my next project last night. I have a pair of 56 7.5 Fleetwins, one I got for $15 and the other for free. They each are missing little parts like the fill/vent screws for gear case, high and low speed knobs, etc. One has broken hood bumpers. Just some examples. But overall they seem solid and compression is around 70/70 on each after testing many times. Not great but “good enough” someone told me. I took the first flywheel off last night and it almost instantly popped. Hardly torqued on at all but looks like newer coils. The second one too, but interestingly that one blue and one ivory coils I can see through the port. That one, the flywheel has been a bear to get off. I can’t turn the center puller knob any further and hesitate to do so. Been doing lots of tap, tap, taping on the puller knob and trying again but doesn’t seem to help. Anyway, planning to pull the parts from both to make one and get a tank to go with it. But, if both motors are mechanically sound with newer coils, points, etc., I am reluctant to “part” one out and may see if I can trade one to another AOMCI member who would be interested in parting with another motor in similar shape.