GKP1961,

Thanks for the response and I appreciate the conversation. The questions seem to beget more...

As far as markings under the hood, I've looked at many pictures online and on this forum. The original decal was barely visible on the oil cleaner. After seeing so many photos on engines in various conditions, I was expecting at least so remnants of the yellow "Thriftmaster" decal on the valve cover. It is proper as to the location of the breather cap, and it is a "breathing" breather as the cover is not vented as earlier models.

Other than what I think might be the last of the original blue/gray block color in a few places near the plugs. Curiously, there is a streak of what looks like "Chevy orange" behind the generator and a spot of yellow on the block just above the oil pan; both on the left side of the engine.

It's a Janesville truck and, owing to a vintage service sticker still in place from the late '60s, spent at least the beginning of its life in Illinois, although I couldn't say whether in the metro Chicago area or not. But it must of either moved to a drier climate or been locked away for a long time before appearing again on the scene. The winter salt around here would have had reduced it to scrap decades ago. My dad had a '64 3/4 ton around '70, '71 and it was already pretty eaten up.

Yesterday was the first day since I brought it home where it was cool enough to get it outside for a good cleaning. And here's another question. On this site, in various locations, I read about the oil filter being a factory or dealer option. This truck has none and the pros and cons of having it are many. My intent was to leave it as stock as I can, allowing for what has already been done (HEI). But then, while studying the truck shop manual for '60, I discovered caution in bold print. It warned:

"If oil lines are removed, and vehicle is to be operated without a filter, connect a jumper line between the fittings on the cylinder block. DO NOT plug fittings in the cylinder block as this will cut off oil circulation."

Does this imply I should make the described connection? If this was so critical to lubrication; why didn't it come from the factory with that line if an oil filter was not ordered?

Wow, GKP, sorry for being so long-winded. There is no one in my area (that I know of) who can help with these "unknowns." Photods from yesterday, attached.

Thanks again,

Jim

[img]https://www.stovebolt.com/ubbthreads/ubbthreads.php/ubb/download/Number/20567/filename/Apache - cleaning day.jpg[/img][img]https://www.stovebolt.com/ubbthreads/ubbthreads.php/ubb/download/Number/20568/filename/Apache - bed.jpg[/img]
Attachments
Apache - cleaning day.jpg (649.02 KB, 134 downloads)
Apache - bed.jpg (616.35 KB, 130 downloads)