My report on the project now completed.
Please re-read all posts to get a feel for situation.
After I dis-assembled the door lock assembly ( panel, locking unit, etc. 14 screws, 2 nuts, spring loaded attachment, etc) I found that the key cylinder could not be removed without a key; I didn't have a key.
I contacted the source provided by Jon Canfield (thank you) and they told me that they could not cut new keys without a number. They offered a new cylinder with 2 keys for $20.00. Sounded great.
Problem was how do I remove the cylinder to put a new one in. My only choice was to find a local locksmith (found a good one in my town) to remove the cylinder. They used their master key, after some fiddling around, to remove the cylinder.
Their answer was to purchase 2 newly cut keys for $12.50 and all would be fine. I agreed.
Today I re-installed all components and all is well. A by-product was that I was able to lubricate all the linkages inside the door area which made quite an improvement in the overall operation of the locking/ unlocking system of the drivers door. Guess after 13 years no one has ever set eyes on that area.
(This is turning into a story---sorry). The locksmiths, having been in business here for more years than they want to remember, (their quote) have a thriving business. It so happens that the keys they cut will also now open my main door on the passenger side. (DYOC).
One other thing I learned from these pros was that they recommended using WD-40 on locks. They said that my lock was probably rendered inoperative from an ingress of water, road dirt, etc. over the years and had plugged up, corroded the tumblers in the lock cylinder. They cleaned it out and all is well. An interesting sideline; they said not to use the graphite puff stuff on the locks because it will clog it eventually and attract dirt and water. Use WD-40, they said, it'll remove the water (true) and leave a trace of lubricant behind, just right. This was new info to me as I asked another locksmith a few days ago and he said...graphite is the only thing to use. I think I'll' go with the WD-40 idea.
One other bonus: Inside the door assembly there was a label stating where the door was made and what the key number was: TM 2xx. I also found that this Winnebago door was built like a tank..all steel and super strong. Thank you Winnebago.
I took a few photos but did not post them...this is a boring topic, I would think. If someone would like to see my pix, let it be known.
carson FL