It’s said that the last 10% takes 30% of the time…..and here is why. Not only are you testing previously done work finding “unexpected results” that last 10% of the work has to also continue.
Willie & I worked the weekend doing some of that stuff, going back to do finals on their original Onan generator we found several issues including a bad PC board 
we also found the maserator “hose holster” had pinched the generator fuel line….. hey, it’s just a thing! After all the hassles I’ve seen by simply inspecting and reusing rear wheel bearings, I told Willie we are changing all of his rear wheel bearings to KNOW he has fresh Timken rear wheel bearings. 
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As it turned out they WERE Timken but I could see a little race wear so it was a good move.
Guys I’m sorry but unless your REALLY know the age and condition of those 4 rear wheel bearings back there…. brother just change them. Tools are a lug wrench, a pair of pliers, socket set a hammer and a push rod….. and the new bearings and seals. Short money with long confidence it’s cash well spent!
While the rims were off I put them up on my truing machine,, got them round but in doing the balancing found they must have balancing beads or something inside… we’ll have that removed and to a proper balance on them.
Those of you with those…. it’s probably fine it’s just speculative wether it’s working as reported and for how long but with my Truing machine I can not only cut each tire/rim assembly round, I can then gravity balance them to be balanced at any speed unlike the “3 speed balancer” that are accepted today. Hey, that balancing seems to work ok but the laws of physics can’t be broken so I pretty much know when I true and balance a tire it will not “bounce”. 
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Earlier yesterday… or was it Saturday, they’re all mixing together we had Savoy Brown up front to cycle the fresh water and holding tank systems again 
Here Willie took the first drive up for a full load of fuel to look for leaks in the fuel delivery system…… Fewwww… no problems then warming the tires up we brought the coach back in. jacked it up with the tires hot so I could address the truing and balancing. Hey, THAT was a pile of work in itself! Up in hover mode now we can do the finals…… detailing the wheel liners and frame, getting the generator fuel line protected and all that stuff. We found the generator PC board had failed since the last time we ran it here…. go figure, replacing that and with the Onan prime circuit (go see the tips page on our site) his Onan it tuned up and ready for service.
Some of you may wonder why we didn’t automatically install a Honda water cooled for the restoration!. Both “Larry” and “JayGee” sport Onan “Troll” power drawers…. there is no doubt they are good units and the best when installed in the beginning. Years are better to some of us than others and by 40 years many Trolls are just that…. hard to deal with but that also means there are some that are still reliable and working well. If you have one of those (I have 2) be good to the ole girl. Give it good oil (30-40 weight with high ZDDP levels), air don’t start or stop it under load….. run it every week under load for 30 minutes. A good one will give you good service but honestly they are not worth going through the hassle of parts and the labor to rebuild them. You can if you like but the new technologies and costs are usually a better bet. Hey, all up to you… wanna tinker then it’s a real “tinker toy”! 
Here’s a Honda 
There’s been a thread on Facebook on not replacing your Onan Power Drawer hey and I agree as long as it’s giving good service and is maintaining but when it develops issues and work has to be done I feel that coat can go a long way toward a new, more efficient unit. Hondas are not new yes, but a power drawer sips 1.25 gallons an hour of fuel at full load. The Honda sips 3/7 of a gallon per hour at full load. One AC on hight will not pull 2000 watts… do the math…..
