Welcome to the DoItYourself Forums!

To post questions, help other DIYers and reduce advertising (like the one on your left), join our DIY community. It's free!

Ariens Rocket rototiller engine

FiveNines's Avatar

Join Date: Feb 2016
Posts: 8

01-12-17, 09:06 AM   #1  
Ariens Rocket rototiller engine

I have an Ariens Rocket rototiller from 1976. The tiller works ok, but the engine is spent. The tiller originally came with a Tecumseh 8hp (HH80) engine with horizontal counter-rotating shafts. Tecumseh is out of business and rebuild kits are nonexistent. I donít need the dual shafts. I looked on the Briggs & Stratton website to find bolt patterns and other dimensions and non are listed. Engine brand doesnít really matter, but certain specs need to line up.

Anyone completed such an upgrade or have an engine website with specs?

Name:  tiller.jpg
Views: 466
Size:  28.3 KB

Sponsored Links
CarbideTipped's Avatar
Forum Topic Moderator

Join Date: May 2015
Posts: 3,138

01-12-17, 11:36 AM   #2  
I have one of the old Garden Way Horse tillers that threw a rod, so I was faced with similar issue. A local power equipment repair place was able to find a Kohler kit made to fit one of their engines to the tiller. So if you have a local Ariens dealer that's been around for a while, might be worth asking them if they know of a suitable engine or kit.

The engine and kit cost me more than a new crappy tiller would have, but that horse is built like a ---well---a horse.


Inside every small project is a big project waiting to slug you over the head and take all your money and time....

geogrubb's Avatar

Join Date: Jun 2006
Posts: 2,333

01-12-17, 11:48 AM   #3  
Small Engine Warehouse has a re-power section. Link below. Have a good one. Geo

Home - Small Engine Warehouse

Vermont's Avatar

Join Date: Jan 2010
Posts: 2,183

01-12-17, 11:58 AM   #4  
I would do some serious diagnosis and then look for a set of rings and someone competent to grind and re-seat the valves. Plus whatever else is required because it's "spent" and needs to be re-awakened.

If it's still intact, and runs, and it doesn't knock, how spent could that be ?

GregH's Avatar
Super Moderator

Join Date: Jan 2001
Posts: 9,607

01-12-17, 01:12 PM   #5  
I have had very good luck with inexpensive import engines on low use machines.
If you use premium fuel and fuel stabilizer when storing you should get many years out of a tiller.

GregH.........HVAC/R Tech

cheese's Avatar
Forum Topic Moderator

Join Date: Jul 2001
Posts: 16,570

01-12-17, 03:40 PM   #6  
There are parts still available, If it's just smoking and low compression issues, I'd put some rings/piston/rod/etc in it as needed. I'm not a tecumseh fan by any means but those engines were decent enough to warrant a rebuild when needed.

"Who is John Galt?" - Ayn Rand (Atlas Shrugged)

God bless!

joecaption's Avatar

Join Date: Jan 2011
Posts: 3,967

01-12-17, 06:23 PM   #7  
Want to rebuild it there lots of sights with the parts to do it.
Want to replace it there's tons of them on Craig's List.
Contact Northern Tool and use there Chat funtion with the model and serial # and they can convert it over.
Not a big issue to drill two new holes to make a B & S motor work.

FiveNines's Avatar

Join Date: Feb 2016
Posts: 8

01-16-17, 10:04 AM   #8  
Thanks for the replies. I'll check out some of the ideas. I prefer a new engine at it is simpler.
Per geogrubb, I found a replacement on SmallEngineWarehouse.com:

Carb is shot, but at one time I did find rebuild kits available. That was a few years ago. Engine itself has no power and burns oil.

Search this Thread