So, I noticed that my upper rad hose on my late model 8N side distributor model was leaking so I removed it and ordered a new one. In the antifreeze in the outlet spout from the head I could see something! Acorns.....so far I have fished out eight and when I reach in with my finger there are more! How could the tractor operate as well as it does? Any ideas on how far I should go? Do I need to remove the head? Dave