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Home > Maintenance & Mods (L322) > 4.4 eats its timing chain tensioners \ guides what to do?

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Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

2002 Range Rover Vogue 4.4 V8 Java Black

4.4 eats its timing chain tensioners \ guides what to do?

Anyone else had their engine eat the plastic timing chain tensioner \ guides? Mine has - the evidence being plastic bits that blocked the strainer causing all hell to break loose in low oil pressure \ stop engine warnings on the dash.

If so, what did you do to fix?

I guess those bits of plastic are throughout all the oilways - and cleaning out not just an expensive job, but might not be really possible.

Replace engine?

Last edited by Cryptic on 29th Aug 2019 2:03pm. Edited 1 time in total

29th Aug 2019 1:31pm

doclees

Member Since: 24 Jun 2015
Location: PA
Posts: 672

How many miles on this set?

29th Aug 2019 1:37pm

Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

Just over 100k

29th Aug 2019 1:44pm

Dolphinboy

Member Since: 07 Dec 2009
Location: Bristol
Posts: 3167

2015 Range Rover Autobiography SDV8 Baltic Blue

The guides become brittle due to high running temps of the engine. NO choice but to take the front off and replace the guides. Mine cost £3000.

https://www.fullfatrr.com/forum/topic41142.html?highlight=guides

29th Aug 2019 2:27pm

Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

Thanks for that and the link.

Thoughts on the plastic bits - is there a risk of them still being round the engine and causing same strainer blocking in future?

29th Aug 2019 2:42pm

Brian Considine

Member Since: 15 Apr 2019
Location: Garlinge
Posts: 428

If you still have the bits then weight them and whats left, compare the weight to replacements & that should give you an idea of how much is actually unaccounted for.
May help you make a decision. 2003 Range Rover Vogue TD6

29th Aug 2019 3:07pm

Dolphinboy

Member Since: 07 Dec 2009
Location: Bristol
Posts: 3167

Yep you will have to access the filter and flush out. Holidayhicken on this forum is my SME (subject matter Expert) on this engine as well as JohnBoyAirey.

Good luck. Hope you get it up and running cos they have a lot of life in them if you do.

29th Aug 2019 3:53pm

Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

Mech reckons that given the great condition underneath she's worth saving one way or another . Currently he's concerned about the remaining floating plastic bits and is thinking replacement engine - if a decent one at the right price can be had. But will discuss further.

29th Aug 2019 6:42pm

doclees

Member Since: 24 Jun 2015
Location: PA
Posts: 672

80 to 100k miles seems about average. It's just a maintenance item. Mine we done by PO at 110k miles. So at 190 to 200k I'll do them and the Besian Vanos fix.

30th Aug 2019 1:31am

p38arover

Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1536

Just a maintenance item? At GBP3000 (nearly AU$5,500)? Crikey! That's nearly the price of a secondhand L322.

I've looked at the work required and it's not a maintenance item. It is a major job.

Cryptic: How many times have they been replaced? Ron B. VK2OTC
2003 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

30th Aug 2019 1:40am

Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

Quote:
Cryptic: How many times have they been replaced?

Never, to my knowledge - not in the 40k I've had her anyway. Wasn't a potential problem I was aware of.

31st Aug 2019 6:50am

p38arover

Member Since: 16 Dec 2015
Location: Western Sydney
Posts: 1536

I thought it must have been multiple times from the thread title.

I'd like to do mine but it looks like too big a job for me. Ron B. VK2OTC
2003 L322 V8 Auto
2007 Yamaha XJR1300
Previous: 1983, 1986 RRC; 1995, 1996 P38A; 1995 Disco1; 1984 V8 County 110; Series IIA

31st Aug 2019 8:08am

Cryptic

Member Since: 01 Apr 2014
Location: Manchester
Posts: 63

Quote:
I'd like to do mine but it looks like too big a job for me.

Been watching videos - it does look a lot of work but not necessarily that difficult (notwithstanding specific tools needed and encountering bolts that won't move)

31st Aug 2019 8:24pm

doclees

Member Since: 24 Jun 2015
Location: PA
Posts: 672

p38arover wrote:
Just a maintenance item? At GBP3000 (nearly AU$5,500)? Crikey! That's nearly the price of a secondhand L322.

I've looked at the work required and it's not a maintenance item. It is a major job.

Cryptic: How many times have they been replaced?

Maintenance. Do you wait until your oil stops lubricating before changing it? Of course not. Most don't have a sample sent for evaluation. We just change it at 5-10k miles. Here a timing chain kit goes for about $400 usd with a lifetime warranty. Yeah there is some wrench (spanner) time involved. Good time to do anything else on the way. Even an alternator or starter is a maintenance item if you want uninterrupted use. We usually just wait until they break because when they break they don't cause something else to break. I guess an alternator could take out a battery too. A sloppy timing chain could get ugly real fast. We now know "sealed for life" means change every 60k miles or it's life will be short.
Don't confuse routine maintenance with. Preventative or Predictive maintenance. In an ideal engine we could easily inspect those timing chain guides to check for cracks and wear. We can't . We can predict when these guides and chains need replacement from average miles at failure and turn it into preventative maintenance. Just another BMW idiosyncratic designs.

31st Aug 2019 8:45pm

knares

Member Since: 22 Jun 2017
Location: Perth WA
Posts: 739

2005 Range Rover Vogue 4.4 V8 Zambezi Silver

I am going through this now and for the last couple of years and have not got it right yet.
Like p38arover said it’s a major job
Doing it again, I am a lot wiser
I went to BMW and asked them to do a diagnostic test; they did not want to do it.
I went to a land rover specialist to do a diagnostic test, when I mentioned BMW, they would not touch it
I went to another land rover specialist to do a diagnostic test, they did the test but said they did not touch BMW
They are a major RR 2005 4.4 petrol
Any spelling mistakes are the fault of spellchecker
Previous MG J2, CITROEN light 15 x 2 gone unfortunately
Present MERC 180e, RANGE ROVER L322, JAGUAR XJS, MERC 280SE, MG F, JAGUAR S-Type 6v 2003, jaguar s-type 8v 2004, Ford Cougar

1st Sep 2019 5:31am

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