Quote:
Originally Posted by Gogubjp
The reason is because i travel twice a year, 4000miles each, and i dont know if the previous owner change it...the car have 180k miles....and i can get the tools from ebay, for chain.
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Do you mean the timing chain guide? Still, the N62 engine is not known to have timing chain issues caused by high mileage. You're probably thinking of the older V8 M62 engine on the 4.6/4.4 E53 2003? When I did VSS on my N62 with 130k miles, the chain guides looked in perfect condition. I read somewhere that the materials were improved on the N62 engine.
As for what you may want to replace while doing the VSS and alternator bracket seal, you may want to consider, obviously, the upper timing cover gaskets, vacuum pump seals and lower oil pan gasket. I would also take the opportunity to do the coolant pipe seal/pipe replacement as someone has already suggested. If applicable, I would also recommend buying the valve stem seal toolkit rather than renting it. There's an alternative one that does the same job as the very expensive Aga toolkit and costs the same as what you'd spend on renting the Aga one. You can therefore take your time to do the job correctly in one shot without rushing through (and not risk making mistakes).
https://www.germanspecialtytools.com...d-n62tu-engine