:: ENGINE PROBLEM ::

The bottle brush or flex hone is quite often miss-understood by the so called experts in reconditioning. Some in the industry have nicked name them dingle-berry hones. The flex hone is made as a series of honing balls around the size of peas attached to an instrument similar in shape to a bottle brush. They are produced in a series of sizes that suit different bore sizes. The flexible nylon wires that have abrasive balls attached control the stone pressure automatically. They were designed as glaze breakers for rebuilds and re-rings whenever the engine is not re-bored. They do an excellent job and are much more suitable in this instance than a rigid hone. Flex hones have been used in our workshop as the preferred honing device as a glaze breaker for over 20 years. They have performed in this role perfectly on every occasion. These flex hones by design are not suitable for stock removal when honing re-bored or reconditioned engines. However most prominent and street wise reconditioners incorporate the use of the flex hone as the final part of the honing sequence. I think the term dingle-berry is referring to those who don't understand the role of flex hones.