Just a nod here to using the advanced search function. Recently I pulled the distributor from my 235 and had some questions. I researched the Tech Tips but was unable to find just what I needed. Using the Advanced Search function for the "Engine Shop" I was able to locate the answer. While I do have a FAM it just didn't go in depth enough.
"What was the question" you ask? I had the distributor out while cleaning and painting the engine, when putting back in I noticed it had 2 ring grooves on the body. "Was there supposed to be an 0ring there"? I found the answer "No", and it actually came with a good explanation. Of course it was HRL (Jerry) who had the answer. The upper groove is there to keep engine oil from migrating up the distributor body. Adding an O-ring there would stop the vacuum advance from moving. QUESTION ANSWERED!
The BOLT to the rescue again....
