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Like pasner says, my IWIS is from a know German dealer, and is GENUINE.mouse wrote:The GENUINE iwis chain would only stretch and become useless after about 30,000 miles, MBD have never had a failure with a GENUINE iwis chain which is why we stock them.ArKaTxU wrote:Hi.
I have a RB20 and after 100 miles I hear a strange sound in the chain side of the engine.
Today after 190 miles I open the engine and see that the chain is very stretched and I can put the fingers down and the chain can touch the engine case in the up side.
The chain is a IWIS 81 links.
This is not very normal, not?
What can cause this? bad chain?
Thanks for your help!
The problem is that if I put a finger down the chain near the crownwheel and other one near the front sprocket, I can touch the engine with the chain, then if i tighten it again still is stretched.stageman wrote:same happened to my brand new IWIS chain on a TS 230. dealer told me they stretch when in use from new and to just tighten it again. was reluctant to do so but had no other chain, tightened it up and kept it, however controlled it regularly. there was no further stretching discernible so guess it´s just what they do in the first couple miles and then they stretch no further. it is still in the motor.
I have 47x16.MarkH wrote:What size sprockets ya got?
Did you count the links on the chain to make sure you actually had an 81 link?
I just pulled an 81 link from the shelf that was actually an 84 link so count those links.
hahaha hijoputaaaaaa!Supereibar wrote:Arka melón a ver si aprendemos a contar joder...
Sorry, not sure if I get this correct. Are you saying that the chain is now too far stretched so that it rubs on the casing ? Maybe a Variochain will help to take up the slack, seeArKaTxU wrote:The problem is that if I put a finger down the chain near the crownwheel and other one near the front sprocket, I can touch the engine with the chain, then if i tighten it again still is stretched.stageman wrote:same happened to my brand new IWIS chain on a TS 230. dealer told me they stretch when in use from new and to just tighten it again. was reluctant to do so but had no other chain, tightened it up and kept it, however controlled it regularly. there was no further stretching discernible so guess it´s just what they do in the first couple miles and then they stretch no further. it is still in the motor.
Thanks!
Hi stageman.stageman wrote:Sorry, not sure if I get this correct. Are you saying that the chain is now too far stretched so that it rubs on the casing ? Maybe a Variochain will help to take up the slack, seeArKaTxU wrote:The problem is that if I put a finger down the chain near the crownwheel and other one near the front sprocket, I can touch the engine with the chain, then if i tighten it again still is stretched.stageman wrote:same happened to my brand new IWIS chain on a TS 230. dealer told me they stretch when in use from new and to just tighten it again. was reluctant to do so but had no other chain, tightened it up and kept it, however controlled it regularly. there was no further stretching discernible so guess it´s just what they do in the first couple miles and then they stretch no further. it is still in the motor.
Thanks!
http://www.lambretta-teile.de/Kettenspa ... -Lambretta
If that doesnt help then you´re looking at larger sprockets. Buying a new chain would probably only repeat your problem.
), the chain is now too far stretched. I know the Variochain, but i will buy a new chain and must check the crownwheel and clutch spider.