Welcome to the Dayco diagnostics section, which details the main faults and relative solutions for the components of the primary transmission and auxiliary transmission: timing belts, Poly-V belts, tensioners, pulleys and water pumps.

Select the product of your choice on one of the following sections.

You will find in this section the causes and remedies to the main problems related to timing belts: clean break, ragged break, loose teeth, side wear, worn land area, irregular wear on belt back, worn teeth, cracks on the belt back, tooth swelling.

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You will find in this section the causes and remedies to the main problems related to Poly-V belts: broken ribs, separation of the rib compound, loose resistant insert, reduced rib section, deposit of external material in the belt grooves.

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You will find in this section the causes and remedies to the main problems related to tensioners, both for primary transmission (metal contamination and oxidation, broken central pin, broken stop contact, dents on the end stop), and auxiliary transmission (irregular opening of the aluminium case, metal contamination and oxidation, broken stop).

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You will find in this section the causes and remedies to the main problems related to water pumps: presence of rust or contamination from foreign matter, inappropriate or excessive use of sealant, broken shaft.

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