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That might be right. Check the flange where it bolts on. I'm pretty sure there were two styles, one with the bolts on opposite sides of the opening, the other with them closer together. There were also at least two brackets to hold it on the CCKA block. See what you have and whether it looks like a match.

And yes, I meant to say boomer, but my fingers typed bruce :)
 

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Get a briggs v twin vanguard and do not look back. You will be much happier in the end. It also looks like your camshaft is in poor shape(have you measured the lobes yet and compared to specs)? camshaft iffy then how are the lifters? Going this far how are the valves , seats, and guides? Probably worn out and needing attention. I wouldnt bore the block and put new piston and rings in a engine that is worn out without addressing the rest of it. Save yourself a ton of potential aggravation with "partially rebuilding a worn out engine that has been oil starved on top of being worn out. With your intended usage a vanguard will last you 20 years with peace of mind. Give it regular oil and filter changes and it will serve you fine. JMO
 

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Discussion Starter #224 (Edited)
Get a briggs v twin vanguard and do not look back. You will be much happier in the end. It also looks like your camshaft is in poor shape(have you measured the lobes yet and compared to specs)? camshaft iffy then how are the lifters? Going this far how are the valves , seats, and guides? Probably worn out and needing attention. I wouldnt bore the block and put new piston and rings in a engine that is worn out without addressing the rest of it. Save yourself a ton of potential aggravation with "partially rebuilding a worn out engine that has been oil starved on top of being worn out. With your intended usage a vanguard will last you 20 years with peace of mind. Give it regular oil and filter changes and it will serve you fine. JMO
I had planned on a new camshaft too. The shop had said that the valves, seats, etc were all good. How do you think the Briggs would compare to the 16.5 Onan? How about torque?

Most have encouraged sticking with the Onan. What makes you lean toward the Briggs?
 

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Discussion Starter #225
Well I struck out today. I called 4 places and while the starter showed as available online, none had one. That included Wilson, the manufacturer. Wilson did not say the starter was discontinued, but they also could not say when or if they would have more in stock. Also, the one on eBay turned out to be the newer version that requires the bracket that is seemingly impossible to find.

So that’s obviously a negative to rebuilding the Onan. My next stop with be showing a pic of the “new” bracket to a machine shop to find out what making one might cost. The outcome of that will likely determine whether I rebuild the Onan, or go with the Briggs or a Honda.
 

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Well over the last few days I have read this whole thread, saga, epic, novel...I have experienced several of the engine choices including the Onan. While I agree the Onan has a unique and pleasing feel, they can become their own projects as you have discovered. I'd vote for a repower and pass the Onan to a nut-job, wait, I meant "enthusiast", who really digs them. It could be rebuilt or might go into a Steve Turchek "3 into 1" special. Briggs, Honda, Kohler, Predator will all be modern engines that should be reliable and powerful enough to handle your work. Of course you could go Diesel if you really must have torques like crazy.
 

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Discussion Starter #227
Thanks and I’m definitely leaning toward a repower. When I started this, I was expecting to spend just a few hundred in parts. I had no idea how quickly the costs would add up. There seems to be a market on eBay for Onan parts, so hopefully I’ll be able to recoup some of these unanticipated costs from the parts that are OK.

Between the Honda GX690 and Briggs Vanguard, would you recommend one over the other?
 

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Gravely1964
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LOL yes onans are and can be a labor of love. Work all weekend to run 3 months and have something else happen. Its the game you play with old iron any age shape color or size. I've never seen a bad onan twin starter knock on wood. So would not worry there
 

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Agreed... if you don't want the whole thing to always be about dealing with the Onan, the DBS Vanguard V-twin 16 is an excellent choice. I run one in my Shibaura and love it.

Manufactured in Japan (at least until 2018 iirc) to a very high standard, they're very tough if maintained properly and parts are easily available just about anywhere.
 

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My recollection is that Bruce Guthrie did more Honda re-powers than other makes, but that is solely based on my faulty, highly suspect and concussion-addled memory. You could reach out to him or someone can give you the contact info of a fellow named Kevin ?? who is now the keeper of the re-power flame. I'm partial to Honda just because they are so dang reliable. But they seem like more hsprs (pronounced hirspirs) engines than torques engines. Yeah that s belongs there. Do the math, however, a modern re-power is not cheap.
 

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Oh BTW as I sit here waiting for supper to heat, I should confess that I'm in the middle of refurbishing a B43M for a friend of mine's 8163-T. It's not seized or anything and I've been following Steve's lead with external fuel pump, new carb, etc. But I really don't expect it to just get put together and run forever. He loves the Onan feel so that's what we're doing. We'll milk that Onan for all its worth!
 

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Discussion Starter #232
Thanks all for the input. I actually talked to Bruce Guthrie in the very beginning before I started breaking the Onan down. He recommended the Honda GX690 and gave me Keith Tarvin’s contact info since he sold his business to him. I recently talked to Keith and he has a kit for the Honda, which may or may not work with the Briggs. There may be some issue with the way the Briggs mounts to the adapter plate. He said it appears as if the mounting face of the Briggs motor can't be sealed, so the adapter plate would have to be milled out so an oil seal could be added. He was going to investigate it further and let me know what he finds out.

Small Engine Warehouse does however sell the Briggs, muffler, and adapter plate ready for a Gravely....
.
 

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Why don't you talk to one or two of the specialist rebuilders on the internet that include onan they sometimes take blocks as a core and may offer you a exchange in short or long block form. This is a long thread if it was suggested before, please excuse.
 

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Discussion Starter #234
Why don't you talk to one or two of the specialist rebuilders on the internet that include onan they sometimes take blocks as a core and may offer you a exchange in short or long block form. This is a long thread if it was suggested before, please excuse.
That’s not a bad idea. Two places popped up when I searched online. This also popped up during my search...

 

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Kenny Queens hardware in Lavalette, WV sells and repairs Gravely's. Now, I'm not sure how well they do engine rebuilds, but they may know someone who does. Although it seems like you have moved away from that, I thought I'd mention it.
 

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Discussion Starter #236
Thanks for mentioning Kenny Queens.

Anyone have any thoughts on the Onan Performer series? The one on eBay reportedly has only 350 hours.
 

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Good strong engine that has pressure lubrication. I have one on a Steiner 220 and it seems like it is a strong engine. Only have 10 hours on it since I got it. Unknown how many hours on it when I got it as the hour meter was missing. Good torque too. Too many good choices, you are going to have a tough time picking one. Good luck.
 

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Thanks for mentioning Kenny Queens.

Anyone have any thoughts on the Onan Performer series? The one on eBay reportedly has only 350 hours.
If memory serves me, the P220 is the same as the B48 Onan (found on the 818T and 8183-T) except with solid state ignition instead of points.
 

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Discussion Starter #240
I spoke with Boomer and he said the crank is too short on the P220. Right diameter, but wrong length.
 
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