Archive for October, 2007
Chains need special Lubricants like ProTecta Oiler
Thursday, October 18th, 2007
Chain maintenance whether on a bicycle or motorbike is one of the most controversial subjects between mechanics. The major cause of chain “stretch” is wearing away of the metal where the rivet rotates inside of the bushing (or the “bushing part of the inside plate) as the chain links flex and straighten as the chain goes onto and off of the sprockets. Premature chain fatigue can be a real problem and effect gear shifting and performance.
Three Points of Chain Lubricaton
First one must be aware of the three points where a chain needs lubrication
- The rivets need to be lubricated where they move inside the inner links as the chain bends and straightens.
- The insides of the rollers need lubrication to let them revolve freely around the bushings as they engage and disengage in the sprocket teeth, which can cause accelerated sprocket wear.
- The surface where the outer side plates overlap the inner side plates can benefit from lubrication as well, although this contact surface is much more lightly loaded than the first two.
Posted in ProTecta Precision Oiler | No Comments »
ZDDP in Additives
Monday, October 15th, 2007
ZDDP (Zinc Dithiophosphate)
In 2006 when a new motor oil warranty category for gasoline engines was developed GF-4, problems started occurring with older cars. When a new warranty specification is put on the market and licensed by the American Petroleum Institute (API) it makes all other previous specifications obsolete. All cars are supposed to be able to run on the new oil, however this is not the case with GF-4. (more…)
Posted in Additives in motor oils, Technical | 5 Comments »