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timing chain guides & tensioner

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Loperamide
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timing chain guides & tensioner

Post by Loperamide » Tue Jan 21, 2020 11:24 pm

Anyone from the North East UK know any good and reputable garage who are previously experienced with the M62TU engine, who would do a prevantative timing chain guides & tensioner repair on a 2003 X5 4.4i ? Currently 120k miles.

Previous M62TU experience is a must.
Last edited by Loperamide on Thu Jan 23, 2020 12:31 am, edited 1 time in total.

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Greydog
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Re: timing chain guides & tensioner

Post by Greydog » Wed Jan 22, 2020 8:19 am

Sorry can't help with knowledge of an engine builder in your area (I am in Sussex) there is Register of BMW Specialists I would Google that and talk to ones close to where you are.
My own 4.6 was rebuilt following guide failure 4 years ago by a BMW Specialist in Sussex.

Good Luck
Dave

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henrym3
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Re: timing chain guides & tensioner

Post by henrym3 » Wed Jan 22, 2020 11:45 am

Out of interest what mileage have you got on the engine.

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Re: timing chain guides & tensioner

Post by Greydog » Wed Jan 22, 2020 5:28 pm

My guides failed at just about 90k total and catastrophic that required a complete rebuild, the engine is now at 151k

Maybe time to consider a change !!!

Dave

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Re: timing chain guides & tensioner

Post by henrym3 » Wed Jan 22, 2020 5:46 pm

My lads 4.4, well he bought it for a song with guides already gone at around 110k working on the principle that "dad will fix it". Because of paranoia I took my sump off at 147k and it had lots of bits in there. I think its all about heat cycles, long journeys are better than 5/10 mile runs.

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Re: timing chain guides & tensioner

Post by Loperamide » Thu Jan 23, 2020 12:17 am

henrym3 wrote: Wed Jan 22, 2020 11:45 am Out of interest what mileage have you got on the engine.
currently just over 120k miles,
Last edited by Loperamide on Thu Jan 23, 2020 12:19 am, edited 1 time in total.

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Loperamide
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Re: timing chain guides & tensioner

Post by Loperamide » Thu Jan 23, 2020 12:18 am

Greydog wrote: Wed Jan 22, 2020 5:28 pm My guides failed at just about 90k total and catastrophic that required a complete rebuild, the engine is now at 151k

Maybe time to consider a change !!!

Dave
was thinking of getting a 2007 4.8i e70 ..........thoughts?

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Re: timing chain guides & tensioner

Post by henrym3 » Thu Jan 23, 2020 8:00 pm

Yep, guides are due to be on the safe side, I haven’t read enough good things about a 4.8 that would encourage me to jump out of my 4.6.

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Re: timing chain guides & tensioner

Post by Loperamide » Mon Feb 10, 2020 10:00 pm

When installing the new tensioner, does it matter which way the small holes face?

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Re: timing chain guides & tensioner

Post by henrym3 » Tue Feb 11, 2020 4:36 pm

No it doesn’t matter, the hole from memory is in a groove round the circumference of the piston, which allows oil to enter no matter where the hole is. Plus the hole can end up anywhere as you screw the tensioner in.

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