Nissan's YD25 Single Row Timing Chain Failures

D22 Navara D40 Navara R51 Pathfinder YD25 engines are prone to single row primary timing chain failures.

YD25enginesI

If your Nissan D22 Navara D40 Navara R51 Pathfinder has one of the above YD25DDTI engines please read on.

The images below show failures occurring with the Nissan YD25DDTI single row timing chain, sprockets and guides.
Some images can be enlarged by clicking on them.

Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 original primary timing chain sprockets showing wear and damage.

Nissan Navara D22 Navara D40 Pathfinder R51 YD25 original crankshaft primary timing chain sprocket showing striped broken and wear to

  Nissan Navara D22 Navara D40 Pathfinder R51 YD25 original fuel pump primary timing chain sprocket showing wear to outer teeth   Nissan Navara D22 Navara D40 Pathfinder R51 YD25 original primary timing chain vacuum pump socket showing wear to teeth 



Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 original primary timing chain guides showing wear and damage. The worn and broken plastic guide fragments block
the oil pick up strainer.

Nissan D22 Navara D40 Navara R51 Pathfinder YD25 original primary timing chain long guide howing excessive wear and damage due to the   Nissan D22 Navara D40 Navara R51 Pathfinder YD25 original primary timing chain slack guide showing excessive wear due to the to single   Nissan D22 Navara D40 Navara R51 Pathfinder YD25 original primary timing chain slack guide showing excessive wear under the slack guid

 

Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 original single row primary timing chain showing wear and damage.

D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain showing collapsed bush   D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain showing wear to pin   D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain showing wear to pin and broken link   D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain showing wear to pin and broken links


Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 original single row  primary timing chain showing wear to the pins and bushes.
chain stretching

Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 badly worn original single row primary timing chain close to failure. Note no timing chain slap noise is heard, there will be some chain to metallic noise heard however as there is plenty of oil on the chain surfaces the noise is soft.

D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain stretched wearing into slack guide housing tensioner piston 1   D22 Navara D40 Navara R51 Pathfinder YD25 Original single row timing chain stretched wearing into slack guide housing tensioner piston



Damage to engine components following timing chain failure.

YD25 D22 D40 R51 damaged piston   YD25 D22 D40 R51 bent valves   IMG 0601    
 piston damage    valve damage    piston damage    
             
IMG 0608   YD25 D22 D40 R51 broken canshaft   YD25 D22 D40 R51 stripped engine    
 head damage     cam damage    stripped engine    


Have your valuable Nissan Navara D22 Nissan Navara D40 Nissan Pathfinder R51 YD25 vehicle fitted with our YD25 Duplex Timing Chain Conversing Kit before your vehicle suffers the above damage and you receive a repair bill for over $5000.