What causes timing chain to stretch?

What causes timing chain to stretch?

In many cases, timing chains stretch due to improper owner maintenance. Going too long between oil changes and using the wrong type or viscosity rated motor oil causes the timing chain pins and plates to wear, resulting in timing chain stretch.

Why did Nissan never fix the timing chain stretch?

Timing chain failure seem to affect particular modern engines, and its a design flaw. Especially if its an engine out job. That just shows that the manufacturer never intended it to be fixed. There is no reason timing chains should be any less reliable these days.

How can I tell if my Nissan chain is stretched?

Scanning it will show a discrepancy between the cam and crank position sensor readings. To ensure it is a stretched chain and not a dodgy sensor the chain tensioner protrusion should be checked – 10mm or more and the chain is knackered.

Is there a problem with the timing chain on Nissan Almera?

I’ve been reading up on Nissans – especially the Almera which I own and it seems there is a problem with the timing chains on these cars – and that can include the Primera & Micra. The chain can become stretched & require an expensive (and some !) replacement. Anyone want further details on this – let me know.

What’s the life of a duplex camshaft timing chain?

The duplex camshaft timing chain is built for a 300,000 km service life. The fuel pump drive timing chain is simplex (single row) and is failing well before the camshaft timing chain.

Timing chain failure seem to affect particular modern engines, and its a design flaw. Especially if its an engine out job. That just shows that the manufacturer never intended it to be fixed. There is no reason timing chains should be any less reliable these days.

Scanning it will show a discrepancy between the cam and crank position sensor readings. To ensure it is a stretched chain and not a dodgy sensor the chain tensioner protrusion should be checked – 10mm or more and the chain is knackered.

I’ve been reading up on Nissans – especially the Almera which I own and it seems there is a problem with the timing chains on these cars – and that can include the Primera & Micra. The chain can become stretched & require an expensive (and some !) replacement. Anyone want further details on this – let me know.

What kind of timing chain does a Nissan Navara have?

This page explains the methods used to diagnose a timing chain fault in the Nissan Navara D40, D22 & Pathfinder R51 YD25 engine. All common rail YD25 engines from 2005 have duplex (double row) camshaft timing chains.