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  #1  
Old 02-18-2019, 05:46 AM
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4.8is E53 Changing TimingChain/ValveStemSeals/AnternatorGasket

In about one month i wanna change timing chain + valve stem seals + alternator bracket gasket on my 4.8is E53, but untill then i wanna buy everything i need.

I wanna know if i need to change something else, likes O-ring, gaskets, seals, screws ?

Have to be someone in here that know or have a list with what to change apart from that 3.

Thanks in advance !!!
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Old 02-18-2019, 01:12 PM
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4.8is E53 Changing TimingChain/ValveStemSeals/AnternatorGasket

Any reason you want to do the chains? That involves removing a lot components, one time use bolts and might as well do the coolant transfer pipe while at it not to mention the additional tools you will need to get the timing set back.
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Old 02-18-2019, 01:23 PM
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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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Old 02-18-2019, 01:57 PM
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Several vendors offer timing chain kits that will include all that you will need. ECS tuning offers 3 versions. Be sure to buy a good tool to keep timing locked in place. Some have had problems going cheap. There are a couple of sources to rent a good quality tool. There are some good DIY step by step options with pictures, tips and help with organization on vendor websites if you are interested. I have read many posts and threads here that might also be helpful to you. They should be easy to find using the forum search function.
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Old 02-18-2019, 02:04 PM
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Why change the timing chain on an N62? That isn't a common issue IIRC.
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Old 02-18-2019, 03:33 PM
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Quote:
Originally Posted by Gogubjp View Post
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.
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
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Last edited by X5only; 02-18-2019 at 03:58 PM.
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Old 02-18-2019, 03:34 PM
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Quote:
Originally Posted by bcredliner View Post
Several vendors offer timing chain kits that will include all that you will need. ECS tuning offers 3 versions. Be sure to buy a good tool to keep timing locked in place. Some have had problems going cheap. There are a couple of sources to rent a good quality tool. There are some good DIY step by step options with pictures, tips and help with organization on vendor websites if you are interested. I have read many posts and threads here that might also be helpful to you. They should be easy to find using the forum search function.

Thanks for your reply buddy.
I will buy a good one...i hope 😜 thats why i write here, maybe is someone hwre to help and give me a link to a good tools set.

But my big question was if i need to change somethine else apart of that 3.
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Old 02-18-2019, 04:10 PM
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X5Only, so you say on N62 engine dont need to change the timing chain ?
Then why everyone ask when ur selling one: TIMING CHAIN DONE ?
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Old 02-18-2019, 05:30 PM
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Quote:
Originally Posted by Gogubjp View Post
X5Only, so you say on N62 engine dont need to change the timing chain ?
Then why everyone ask when ur selling one: TIMING CHAIN DONE ?
You're talking about the older X5 V8 (1999-2003 4.4 and 4.6) and 5/7 series (e39/e38 v8) that have a completely different engine M62/M62TU. For the E53 N62 X5 (4.4 and 4.8) and 5/6/7 series N62, your worry should be the valve stem seals, alternator bracket seal and coolant pipe. As long as regular oil changes is done, your N62 engine should not have chain or chain guide issues based on mileage. You will see this for yourself when you remove the valve covers. Also just do a search here for chain guides.
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Last edited by X5only; 02-18-2019 at 05:39 PM.
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Old 02-18-2019, 05:39 PM
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Yea not doing the chain will save you hours of labor, just not worth it unless something is wrong. Nothing you are doing takes you even halfway there. Might as well do the oil pan gasket if you are set on doing it.

Also it will be easier to pull the motor out completely and refresh all.
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