how does this little device work

bennell · 11-01-2010, 07:42 AM

due to a mess up with my insurance im unable to ride untill the problem is sorted so im deciding to change my piston, clutch plates and springs to aftermarket ones, i know exactly how to change the piston etc and i know hw to do time and so on but im not to sure how the cam tensioner device works properly so im begging for some info on how to tighten loosen and remove the device, thanks very much

katoranger · 11-01-2010, 09:06 AM

The nut with the flat head screwdriver slot is the adjustment. The two bolts on the side hold it in place.

You should be able to just remove the two bolts and the assembly will slide out. Will be a rod and a spring in there. Pay attention to how to go together for reassembly.

bennell · 11-01-2010, 09:12 AM

Quote:

Originally Posted by katoranger

The nut with the flat head screwdriver slot is the adjustment. The two bolts on the side hold it in place.

You should be able to just remove the two bolts and the assembly will slide out. Will be a rod and a spring in there. Pay attention to how to go together for reassembly.

how do i use it to tighten the cam chain tension

katoranger · 11-01-2010, 09:49 AM

To make adjustments you would loosen the large nut while holding the screw portion with a flathead screwdriver. I believe to tighten you would turn in it in. When you get it to where you want it your tighten the large nut while holding the screwdriver portion in place.

Most modern engine now have self-adjusting cam tensioner so I am surprise to see this.

For removal purposes just take the two bolts out and leave the adjustment alone. It should be set close or correctly for reassembly then.

FastDoc · 11-01-2010, 11:40 AM

I'm not sure that advise is compleatly correct.

That looks like a Suzuki style cam chain tensioner.

Inside is a spring loaded rod. The setscrew and locknut lock the rod in place.

To adjust it you loosen the nut, back off the setscrew 1/2 turn. If the tensioner was loose, you will hear and feel the rod pop forward under spring pressure.

Then tighten the setscrew and locknut and you are good to go. DO NOT remove the setscrew, its difficult to get it all back together again. :(

katoranger · 11-01-2010, 02:01 PM

Doc is probably correct. I have never seen an adjustable one. All the tensioners I have encounter have been of the self adjusting type.

Makes more sense as I was wondering how you would know if it is set right.

FastDoc · 11-01-2010, 02:09 PM

Nothing to really set, the spring pressure does it.

I check it when I set the valves.

Other than that it requires no care.

Weldangrind · 11-01-2010, 02:13 PM

The XR / Lifan adjusters are similar, although they don't have the locknut setup. You can loosen the hollow bolt for the chain adjuster to allow the tensioner to self-adjust. Let me know if you need the specific procedure, and I'll look it up.

katoranger · 11-01-2010, 03:41 PM

I guess I never knew how to use them.

FastDoc · 11-01-2010, 03:59 PM

I might not be right! But like I say that looks like a Suzuki unit, which I'm familiar with from the shop manual.

katoranger · 11-01-2010, 04:48 PM

What bike is this on? I am sure that both Doc and W&G recommendations are probably the right ones.

bennell · 11-01-2010, 07:14 PM

its on my qingqi gy125 2-b the supermoto version with the suzuki gn engine, cheers for the replies

FastDoc · 11-01-2010, 07:28 PM

Quote:

Originally Posted by bennell

its on my qingqi gy125 2-b the supermoto version with the suzuki gn engine, cheers for the replies

Yup. That correlates with the Suzuki-oid adjuster. Go with my recommendations. 8)

katoranger · 11-01-2010, 09:58 PM

Quote:

Originally Posted by FastDoc

Quote:

Originally Posted by bennell

its on my qingqi gy125 2-b the supermoto version with the suzuki gn engine, cheers for the replies

Yup. That correlates with the Suzuki-oid adjuster. Go with my recommendations. 8)

GO with Doc's recommendations. His stuff actually runs. Don't listen to me. I just take stuff apart.

FastDoc · 11-01-2010, 11:48 PM

That's the funniest thing I've heard all day! LOL!

11-01-2010, 07:42 AM	#1
bennell Join Date: Aug 2009 Posts: 91	how does this little device work due to a mess up with my insurance im unable to ride untill the problem is sorted so im deciding to change my piston, clutch plates and springs to aftermarket ones, i know exactly how to change the piston etc and i know hw to do time and so on but im not to sure how the cam tensioner device works properly so im begging for some info on how to tighten loosen and remove the device, thanks very much
	0

11-01-2010, 11:40 AM	#5
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	I'm not sure that advise is compleatly correct. That looks like a Suzuki style cam chain tensioner. Inside is a spring loaded rod. The setscrew and locknut lock the rod in place. To adjust it you loosen the nut, back off the setscrew 1/2 turn. If the tensioner was loose, you will hear and feel the rod pop forward under spring pressure. Then tighten the setscrew and locknut and you are good to go. DO NOT remove the setscrew, its difficult to get it all back together again. :( __________________ Happy to serve.
	0

11-01-2010, 02:09 PM	#7
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	Nothing to really set, the spring pressure does it. I check it when I set the valves. Other than that it requires no care. __________________ Happy to serve.
	0

11-01-2010, 02:13 PM	#8
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	The XR / Lifan adjusters are similar, although they don't have the locknut setup. You can loosen the hollow bolt for the chain adjuster to allow the tensioner to self-adjust. Let me know if you need the specific procedure, and I'll look it up. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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11-01-2010, 03:59 PM	#10
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	I might not be right! But like I say that looks like a Suzuki unit, which I'm familiar with from the shop manual. __________________ Happy to serve.
	0

11-01-2010, 09:06 AM	#2
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	The nut with the flat head screwdriver slot is the adjustment. The two bolts on the side hold it in place. You should be able to just remove the two bolts and the assembly will slide out. Will be a rod and a spring in there. Pay attention to how to go together for reassembly.
	0

11-01-2010, 09:49 AM	#4
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	To make adjustments you would loosen the large nut while holding the screw portion with a flathead screwdriver. I believe to tighten you would turn in it in. When you get it to where you want it your tighten the large nut while holding the screwdriver portion in place. Most modern engine now have self-adjusting cam tensioner so I am surprise to see this. For removal purposes just take the two bolts out and leave the adjustment alone. It should be set close or correctly for reassembly then.
	0

11-01-2010, 02:01 PM	#6
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	Doc is probably correct. I have never seen an adjustable one. All the tensioners I have encounter have been of the self adjusting type. Makes more sense as I was wondering how you would know if it is set right.
	0

11-01-2010, 03:41 PM	#9
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	I guess I never knew how to use them.
	0

11-01-2010, 04:48 PM	#11
katoranger Join Date: May 2007 Location: Altamont, Kansas Posts: 15,103	What bike is this on? I am sure that both Doc and W&G recommendations are probably the right ones.
	0

11-01-2010, 07:14 PM	#12
bennell Join Date: Aug 2009 Posts: 91	its on my qingqi gy125 2-b the supermoto version with the suzuki gn engine, cheers for the replies
	0

11-01-2010, 11:48 PM	#15
FastDoc Join Date: Mar 2009 Location: Southeastern Washington desert Posts: 14,761	That's the funniest thing I've heard all day! LOL! __________________ Happy to serve.
	0