I love those opposed twin engines. I have a crapsman with an 18 horse that I am going to stretch the frame a bit and make it more stable along with rebuild and add a turbocharger or supercharger. I plan on mounting my welder to it or making some sort of cart for my Miller Roughneck so I can load them up on my cart and take them off road to farm equipment and other repairs as a mobile welder.
Onan's were the first engines I worked on so they kind of hold a special place for me. There are clearly better engine out there but I enjoy Onan's for sure. Opposed twin Kohlers are just difficult to work on!
Note to self, be aware if you clean a Onan engine with brake cleaner...guess what? That engine sticker with the serial # and engine type will be a nice shiny looking sticker. WITHOUT ANY OF THE DATA! Luckily I had taken a couple pictures of it before I started.
I've done that before. The current brake clean that I used doesn't do it, but there are some brands than will make that tag nice a shiny.... with no information!
I would have decarbed and adjusted the valves while you had it on the bench. Just did my 416 Wheel Horse and other than expensive gaskets that would be the time to do it.
I did consider doing this. However, since this it was running fine prior to removing it from the machine and it will be a limited use machine for me the monetary cost and the risk of creating issues outweighed the benefit of pulling the heads. I do realize the "risk of creating issues" is a little odd, but what happens when I take the heads off and find a major issue OR what happens if I take the heads off and I can't get the head gaskets to seal again. I had an Onan like that years ago, four set of head gaskets and I eventually trashed the block and sold the parts. All these are very uncommon, but can happen when you start messing with engine in that manner. Hopefully all that makes sense and I might include some commentary on that in the next video.
@@mmrbeef I kind of know what you mean about finding something.....My P216 ran perfect and only a slight puff of blue on start up. Now I know why, the right or front cylinder has a single score on the very bottom. I can just feel it with a finger nail and it allows a bit of oil to creep into the cylinder when it sits. I decided not to bore it because it runs so well but it does bug me!
@@outragousbob4367 All good points here. Sometimes it's not worth opening up another can of worms. I usually try to clean up and service all the running Onan engines I get in tractors, but I've had a handful that run good, don't leak or smoke, so they usually don't get touched. I swapped a P218G into my Cub Cadet 782 and replaced all the seals, gaskets, etc. before installing it in the tractor just to make sure it was ready to go. It runs great (when the intake manifold isn't leaking), but it must have some pitting in the cylinders because it has a lot of blow-by, which is a shame.
The engine had been washed previously with a power washer in Part 2. Normally I would wash the engine with a power washer once the tins were removed. However, if you notice at the end of the video I discuss the temperature situation 64 degrees and headed to 20 something overnight. It was faster to do it this way vs blowing out the hose and cleaning everything up and not letting anything freeze.
Time-lapse works fine.
I am trying out some new to me editing techniques. I have to get better at editing these videos!
Still missing the oil filter rubber seal 👍
It was ordered a couple weeks ago, just hasn't arrived yet. I thought I had a couple of them but evidently I have used them all.
I love those opposed twin engines. I have a crapsman with an 18 horse that I am going to stretch the frame a bit and make it more stable along with rebuild and add a turbocharger or supercharger. I plan on mounting my welder to it or making some sort of cart for my Miller Roughneck so I can load them up on my cart and take them off road to farm equipment and other repairs as a mobile welder.
Onan's were the first engines I worked on so they kind of hold a special place for me. There are clearly better engine out there but I enjoy Onan's for sure. Opposed twin Kohlers are just difficult to work on!
Where did you get that big pan your working on?
Note to self, be aware if you clean a Onan engine with brake cleaner...guess what? That engine sticker with the serial # and engine type will be a nice shiny looking sticker. WITHOUT ANY OF THE DATA! Luckily I had taken a couple pictures of it before I started.
I've done that before. The current brake clean that I used doesn't do it, but there are some brands than will make that tag nice a shiny.... with no information!
I would have decarbed and adjusted the valves while you had it on the bench. Just did my 416 Wheel Horse and other than expensive gaskets that would be the time to do it.
I did consider doing this. However, since this it was running fine prior to removing it from the machine and it will be a limited use machine for me the monetary cost and the risk of creating issues outweighed the benefit of pulling the heads. I do realize the "risk of creating issues" is a little odd, but what happens when I take the heads off and find a major issue OR what happens if I take the heads off and I can't get the head gaskets to seal again. I had an Onan like that years ago, four set of head gaskets and I eventually trashed the block and sold the parts. All these are very uncommon, but can happen when you start messing with engine in that manner. Hopefully all that makes sense and I might include some commentary on that in the next video.
@@mmrbeef I kind of know what you mean about finding something.....My P216 ran perfect and only a slight puff of blue on start up. Now I know why, the right or front cylinder has a single score on the very bottom. I can just feel it with a finger nail and it allows a bit of oil to creep into the cylinder when it sits. I decided not to bore it because it runs so well but it does bug me!
@@outragousbob4367 All good points here. Sometimes it's not worth opening up another can of worms. I usually try to clean up and service all the running Onan engines I get in tractors, but I've had a handful that run good, don't leak or smoke, so they usually don't get touched. I swapped a P218G into my Cub Cadet 782 and replaced all the seals, gaskets, etc. before installing it in the tractor just to make sure it was ready to go. It runs great (when the intake manifold isn't leaking), but it must have some pitting in the cylinders because it has a lot of blow-by, which is a shame.
Why not powerwash it with a small electric (1,200 psi or so) powerwasher (with some purple power, or another degreaser)..?
The engine had been washed previously with a power washer in Part 2. Normally I would wash the engine with a power washer once the tins were removed. However, if you notice at the end of the video I discuss the temperature situation 64 degrees and headed to 20 something overnight. It was faster to do it this way vs blowing out the hose and cleaning everything up and not letting anything freeze.