Buy this '66 Suburban? (needs a motor rebuild)
Posted February 26, 2015 - 01:07 AM
I'm more of a Bolens guy, but have always loved the look of the old Suburbans (although I know NOTHING about them). The price is right but I'd like to keep it original.
Question is, how difficult and/or costly will it be to rebuild the old 12 horse Tecumseh in this beast? Are parts readily available for the engines and tractors?
Any help greatly appreciated!!!
- rustyoldjunk, Sawdust and Bill 76 have said thanks
Posted February 26, 2015 - 02:05 AM
It's not impossible to rebuild your engine, but it may take some time to gather up the needed parts. The HH120 is a great engine if everything is up to par. Keep the oil clean and full and keep the RPM's where they belong.
- rustyoldjunk, boyscout862 and Bill 76 have said thanks
Posted February 26, 2015 - 02:24 AM
Classic about summed it up-- you might want to check with our site sponsors for parts,if they can't find em then it's ebay time
- rustyoldjunk and MH81 have said thanks
Posted February 26, 2015 - 02:25 AM
The HH120 is a great engine if everything is up to par. Keep the oil clean and full and keep the RPM's where they belong.
I will second classic the HH120 is a great engine when it is in good condition. I will second him on keeping the RPM's where they belong. These engines are splash lubed and intended to run at 3600 RPM when worked. The lube works best when the engine is throttled up. The same goes for air cooling. The flywheel blows the most cooling air over the engine when throttled up.
Posted February 26, 2015 - 07:10 AM
Have no idea if the mag is available, but most guys wire it for coil ignition if they have serious issues.
Posted February 26, 2015 - 07:56 AM
I have one of thease engines that I intend on going through......i'm scared now!
Posted February 26, 2015 - 08:12 AM
Posted February 26, 2015 - 08:31 AM
The 66 was first year of the Roper built Sears tractors, good machines.
The Tecumseh is a good motor when running, but as stated, parts are NLA and finding old stock is getting hard to do.
Mark at www.carbrescue.com can fix any of your carb issues, he is a magician with the old Walbro carbs.
- KennyP said thank you
Posted February 26, 2015 - 11:05 AM
I went through the same thing last year with a Wisconsin S12D for a Bolens 1250. It took months and $600+ to find parts & bring it back from a broken governor gear and 45+ years of use and abuse. Skin of the teeth deal too with carb parts - got the last NOS throttle shaft that I could find anywhere in the nation.
I'm still not sure about pulling the trigger on this. Is there an easy drop-in repower engine swap that won't mangle the tractor if I decide to go back to the original Tecumseh someday? Thanks again for all the help!
Posted February 26, 2015 - 12:18 PM
I have seen a lot of guys swapping in the Harbor Freight honda clone engines in the suburbans. Many use the 6.5 Hp they sell if tractor is just used as a yard tug or light duty type stuff, pulling trailer, maybe rake, etc. Others have used the 11 hp and I think HB sells now a 13 Hp side shaft. They can all fit, but may take some modding to clutch idler pulley, throttle cables, engines pulleys and the air cleaner assembly. I've seen guys notch hoods for air cleaner and exhaust, but that's like scratching a chalk board for me. Other than finding a used Tecumseh motor, no real direct swap.
Sears did used a 14 and 15 hp flat head Briggs in the 71 & 72 suburbans so if you can find one of those, you maybe able to swap them in without much fuss
Posted February 26, 2015 - 12:19 PM
There should be lots of Teccy engines out there and I know a couple of guys who have transplanted Kohler's. just be aware of the output shaft size and the rest should be pretty straight forward.
All depends on how much effort you want to throw at it.
As for buying/not buying... My Suburban12 is probably my favorite tractor.
Posted February 26, 2015 - 05:14 PM
There are two different companies now making brand new bolt on replacements for worn out SSI units.
- MH81 said thank you
Posted February 27, 2015 - 07:23 PM
I have a HH120 short block you can have if you can come and get it,its a slightly newer motor since its not setup for points but has a good crank and rod. I ran the motor for a few years but it started smoking alot so I replaced it with a HH100 that was not as bad.