Larry Chamberlain 22 #1 Posted March 3, 2014 I have a 73 8 HP wheel horse I just purchased a 12 HP k301 to put on it any ideas how to Mount this motor its 19 inches high same as the hood Lol if any ideas please share as i will be trying to figure this out too Share this post Link to post Share on other sites
Hodge71 665 #2 Posted March 3, 2014 Sounds like you have the wrong engine as the 10,12,14,16 horse K and M series Kohlers fit under without any mods. You need to takes some pictures of the transplant candidate. I bet it has the wrong oil pan on it. You also need to know the measurement to the centerline of the PTO/output shaft for your transmission drive pulley and PTO if you plan on mowing or using any belt driven implements Share this post Link to post Share on other sites
Larry Chamberlain 22 #3 Posted March 3, 2014 Well I did the measurements with out the mounting plate so I'm gonna have to drill some holes in the frame to mount it the I called the guy I got the motor from yo see if he has the pulley he said he would have to check in the morning I'll post somr picks of the motor when I get back home Share this post Link to post Share on other sites
Kelly 1,033 #4 Posted March 4, 2014 Look at the top of the engine section there is a post on engine block styles, it also shows oil pans, should give you a few ideas, with the right pan it will bolt in, except the front right corner, I have some pics on how that is done, I'll see if I can find them. Share this post Link to post Share on other sites
Larry Chamberlain 22 #5 Posted March 4, 2014 I have the pan in the top picture so there are blind holes on the bottom six to mount to the frame I'll have to check this out tomorrow Share this post Link to post Share on other sites
Larry Chamberlain 22 #6 Posted March 4, 2014 OK my oil pan dose not have the extra holes on the bottom of the oil pan the frame hole are roughly around 6inches on center so what oil pan can I use so this setup will work kinda getting desperate here Share this post Link to post Share on other sites
Hodge71 665 #7 Posted March 4, 2014 So you have the top engine/pan combination but no holes in the pan? OK my oil pan dose not have the extra holes on the bottom of the oil pan the frame hole are roughly around 6inches on center so what oil pan can I use so this setup will work kinda getting desperate here Share this post Link to post Share on other sites
Larry Chamberlain 22 #8 Posted March 4, 2014 Correct no extra holes just the ones on the ears Share this post Link to post Share on other sites
Don1977 605 #9 Posted March 4, 2014 It might not have the ball bearings on the crank shaft that are needed for the manual PTO. Some of the other brands had sleeve bearings. Share this post Link to post Share on other sites
Kelly 1,033 #10 Posted March 5, 2014 Oil pans can be swapped, I'm sure I have one I could sell you. here are a few pics of a swap much like you are doing I did last spring in my sons B-100 when I built it I put a 8hp in it because I had it and it ran great, well now about 5 years later he wanted the bigger engine in it so we put a 12hp in, because it is a mid frame tractor much like your 8hp machine, you have to use a J bolt on the front right corner, and yes it is factory on this style frame, others the frame is a little longer and you have room to install the bolt from the bottom, and because your oil pan does not have the holes in the bottom you could J bolt both holes on the right side, here is a few pics hope they help. Another thing you will have to address is the wiring will need to be longer, but no big deal, and the choke and throttle cables will need to be changed for ones to fit the bigger engine, and have you checked the crank diam. ?? if it's 1" your good the 8hp pulleys and PTO sleeve will fit, if 1 1/8" you will need different ones. With the 8hp and the riser plate for it the big 12 bolted it J bolt I was talking about Almost done Happy young man, now to wash it All washed this took about 4 days but that is including painting the engine, actual time to do the swap was about 4 hours with rewiring and the other stuff needed in the swap. Share this post Link to post Share on other sites
Larry Chamberlain 22 #11 Posted March 5, 2014 I'm picking up a oil pan for it tomorrow for $20 and he has. Pulleys just gotta see what will fit my engine Share this post Link to post Share on other sites
