Kanga belt tensioner mod

Mark G · 22nd July 2010, 07:50 PM

Here is a couple of pics of the belt tensioner.It is on a off center cam with heavy bearings machined in.It fits in the original side cover.

Eric Frei · 23rd July 2010, 09:14 AM

Mark, can you get a closer pic for me. Can you show ro explain how you built it and where to get parts from, how it is mounted etc.

I am about to do some more work to mine and the belts I use are now manf in China, so not the same size and they're slipping whilst every other brand is too loose or too tight.

Mark G · 23rd July 2010, 05:10 PM

I will get some closer pics later on saturday after work.But in short I took a 5 belt pulley and machined it to three,receseed the pulley for the bearings.The post the pulley mounts to has a off centre bolt hole drilled into it so to tighten the belts use a pipe wrench on the piece the pulley mounts on and tighten the nut that is on the inside plate ie grinderwheel side.Make sense?Belt tension is a big thing on these especially with the crap honda motor as they have no real bearings on the out put shaft, so side loading on these motors is not a good thing.

22nd July 2010, 07:50 PM	#1
Mark G Semi-mature vigorous tree Join Date: May 2007 Location: new zealand Posts: 55	Kanga belt tensioner mod Here is a couple of pics of the belt tensioner.It is on a off center cam with heavy bearings machined in.It fits in the original side cover. Attached Thumbnails

23rd July 2010, 09:14 AM	#2
Eric Frei Admin - Razor sharp and independent 2 X Diploma Level 5 qualified arborist Join Date: Jan 2007 Location: Brisbane Posts: 12,820	Re: Kanga belt tensioner mod Mark, can you get a closer pic for me. Can you show ro explain how you built it and where to get parts from, how it is mounted etc. I am about to do some more work to mine and the belts I use are now manf in China, so not the same size and they're slipping whilst every other brand is too loose or too tight. __________________ Protect your rights to work - Join Australian Tree Association My businesses:- Qualified Brisbane Tree Lopping \| Stump Grinding Brisbane \| Brisbane - Gold Coast Consulting Arborist

23rd July 2010, 05:10 PM	#3
Mark G Semi-mature vigorous tree Join Date: May 2007 Location: new zealand Posts: 55	Re: Kanga belt tensioner mod I will get some closer pics later on saturday after work.But in short I took a 5 belt pulley and machined it to three,receseed the pulley for the bearings.The post the pulley mounts to has a off centre bolt hole drilled into it so to tighten the belts use a pipe wrench on the piece the pulley mounts on and tighten the nut that is on the inside plate ie grinderwheel side.Make sense?Belt tension is a big thing on these especially with the crap honda motor as they have no real bearings on the out put shaft, so side loading on these motors is not a good thing.

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