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What 2.7 V6 main bearing and conrod bearings have you used
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

On the 3 tdv6 engines i had opened up, all the torque settings were fine...

The main bearings on all of them show abnormal signs of wear as said earlyer..

Have a look yourself...

Left 68K mls..... right 120K mls...


Click image to enlarge
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #221757914th Mar 2021 11:58 pm
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Breg90
 


Member Since: 04 Feb 2017
Location: Falkirk
Posts: 347

United Kingdom 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

Well it appears that the bearing stamped numbers do not suffice. So unless any one has the genuine size/color chart it looks like I will be going with aftermarket bearings.

So far I have heard:

King - stories of success and failure

FAI - stories of success

Feel free to chip in with your experiences!

Adrian
 Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits 
 
Post #221901420th Mar 2021 10:43 pm
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jenseneverest
 


Member Since: 12 Jun 2017
Location: somewhere
Posts: 758

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi SilverDiscovery 3

Motolab wrote:
On the 3 tdv6 engines i had opened up, all the torque settings were fine...

The main bearings on all of them show abnormal signs of wear as said earlyer..


Interesting
What about the main bearing housing, have they been torqued and checked for size / ovality ? Was the wear to the bearings the same on all of the mains ? Both to the block and the cap ?
What about the big ends ?
  
Post #221902421st Mar 2021 12:09 am
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jenseneverest
 


Member Since: 12 Jun 2017
Location: somewhere
Posts: 758

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi SilverDiscovery 3

This is what i have for the colour coded bearings, note it is for the 3L engine...
For me the interesting bit is the size chart, assuming it relates to what is desired for your crank.

Click image to enlarge


Click image to enlarge


Click image to enlarge
  
Post #221902521st Mar 2021 12:17 am
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Yargo
 


Member Since: 25 Dec 2020
Location: Europe
Posts: 326

2014 Discovery 4 3.0 SDV6 HSE Auto Java BlackDiscovery 4

Breg90 wrote:
Well it appears that the bearing stamped numbers do not suffice. So unless any one has the genuine size/color chart it looks like I will be going with aftermarket bearings.

So far I have heard:

King - stories of success and failure

FAI - stories of success

Feel free to chip in with your experiences!

Adrian


One of the LR specialists and engine rebuilders on FB group said "I have seen too many bearing failures, never KING again, use FAI".

Genuine LR bearings are circa 500 quid, ouch.
  
Post #221903321st Mar 2021 5:25 am
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Breg90
 


Member Since: 04 Feb 2017
Location: Falkirk
Posts: 347

United Kingdom 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

Yargo,

It seems you can buy main and big end bearings for Ford F150 3.0 Powerstroke diesels. This a 3.0 version of the LION engine that we have. Whether its the same version as the 3.0 in the D4 I am not too sure. I have found on the interweb (of lies) that the USA version has a larger big end journal diameter (increase of 3mm) - sadly can't remember where I read it as it wasn't of that much interest at the time. I assume (if it is true) that this is strengthens the weak area that fatigues and fails. There is talk about the crank bearing forged rather then cast as well which would help. Makes me wonder if you could fit an newer design (uprated?) crank with new con rods to a D4 3.0. Cranks are list in Ford dealer web sites for OOM $545. Seems to good to be true!

Mean while you can also order the main and big end bearings from Ford in the USA. they even list the colours of each bearing as an option - red/yellow/blue. Question is what do I need???? If I knew that a full set of Ford bearings (main and big end) would be $325. I'd pay that.

https://www.tascaparts.com/v-2018-ford-f-1...ne--engine

You can also buy Ford main bearing cap bolts and side bolts + big end cap bolts.

Adrian
 Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits 
 
Post #222092428th Mar 2021 10:41 pm
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Breg90
 


Member Since: 04 Feb 2017
Location: Falkirk
Posts: 347

United Kingdom 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

jenseneverest wrote:
This is what i have for the colour coded bearings, note it is for the 3L engine...
For me the interesting bit is the size chart, assuming it relates to what is desired for your crank.

Click image to enlarge


Click image to enlarge


Click image to enlarge


Jenson,

Appreciate you posting that. I actually have found that document - it's by Outback Engineering, i.e. its not an official land Rover or Ford document. Looking at the table it lists the following nominal sizes:

Bore - 72mm (nominal)
Journal - 69mm (nominal)

But looking up sizes on the KING bearing web site it lists the following for a D3 2.7 V6 Lion engine:

Crank:
Bore - 75mm (nominal)
Journal - 70mm (nominal)

Big End:
Bore - 69mm (nominal)
Journal - 63mm (nominal)

None match the sizes in the Outback Engineering document which makes me suspicious. Plus the bearing code data does not match for the 2.7 V6. But I believe the bottom end is the same on a 2.7 & 3.0 V6.

I am now loitering/asking questions on Ford F150 forums about the 3.0 version of the LION engine they have had since 2018.

Adrian
 Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits 
 
Post #222092928th Mar 2021 11:00 pm
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garrycol
 


Member Since: 06 Dec 2010
Location: Canberra
Posts: 1114

Australia 

Yes the Powerstroke does have larger journals - about 2mm larger in diameter - this information implies the block is slightly different to the Lion 3.0 in that the crank tunnel will be bored to a slightly larger size - as I said by implication rather than confirmed information. Maybe a Lion 3.0 block has enough meat in it to enable line boring to fit the Powerstroke crank and bearings - who knows until someone tries it.
  
Post #222093028th Mar 2021 11:01 pm
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Breg90
 


Member Since: 04 Feb 2017
Location: Falkirk
Posts: 347

United Kingdom 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

Garrycol,

Main bearings or Big end bearings?

Adrian
 Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits 
 
Post #222093328th Mar 2021 11:06 pm
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garrycol
 


Member Since: 06 Dec 2010
Location: Canberra
Posts: 1114

Australia 

Not sure - I assume both as the specs for the Powerstroke just refer to larger journals.

I guess it is like when the Rover V8 went from the 3.9 to the 4.0 - same capacity engines but the crank on the 4.0 had larger journals and would not fit a standard 3.9 block.
  
Post #222093629th Mar 2021 12:14 am
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Yargo
 


Member Since: 25 Dec 2020
Location: Europe
Posts: 326

2014 Discovery 4 3.0 SDV6 HSE Auto Java BlackDiscovery 4

Breg90 wrote:
Yargo,

It seems you can buy main and big end bearings for Ford F150 3.0 Powerstroke diesels. This a 3.0 version of the LION engine that we have. Whether its the same version as the 3.0 in the D4 I am not too sure. I have found on the interweb (of lies) that the USA version has a larger big end journal diameter (increase of 3mm) - sadly can't remember where I read it as it wasn't of that much interest at the time. I assume (if it is true) that this is strengthens the weak area that fatigues and fails. There is talk about the crank bearing forged rather then cast as well which would help. Makes me wonder if you could fit an newer design (uprated?) crank with new con rods to a D4 3.0. Cranks are list in Ford dealer web sites for OOM $545. Seems to good to be true!

Mean while you can also order the main and big end bearings from Ford in the USA. they even list the colours of each bearing as an option - red/yellow/blue. Question is what do I need???? If I knew that a full set of Ford bearings (main and big end) would be $325. I'd pay that.

https://www.tascaparts.com/v-2018-ford-f-1...ne--engine

You can also buy Ford main bearing cap bolts and side bolts + big end cap bolts.

Adrian


No point buying Ford bearings for such money if you can get genuine LR bearings for 500 GBP.
  
Post #222094029th Mar 2021 4:49 am
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jenseneverest
 


Member Since: 12 Jun 2017
Location: somewhere
Posts: 758

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi SilverDiscovery 3

TBH if it was my crank i would have it ground to 10 thou (.25mm for those with metric brains) and get bearings to suit. That way all the clearances are perfect again. If the heads were coming off then i would standardise the rods too.
  
Post #222107429th Mar 2021 2:51 pm
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Breg90
 


Member Since: 04 Feb 2017
Location: Falkirk
Posts: 347

United Kingdom 2008 Discovery 3 TDV6 XS Manual Java BlackDiscovery 3

Yargo wrote:
Breg90 wrote:
Yargo,

It seems you can buy main and big end bearings for Ford F150 3.0 Powerstroke diesels. This a 3.0 version of the LION engine that we have. Whether its the same version as the 3.0 in the D4 I am not too sure. I have found on the interweb (of lies) that the USA version has a larger big end journal diameter (increase of 3mm) - sadly can't remember where I read it as it wasn't of that much interest at the time. I assume (if it is true) that this is strengthens the weak area that fatigues and fails. There is talk about the crank bearing forged rather then cast as well which would help. Makes me wonder if you could fit an newer design (uprated?) crank with new con rods to a D4 3.0. Cranks are list in Ford dealer web sites for OOM $545. Seems to good to be true!

Mean while you can also order the main and big end bearings from Ford in the USA. they even list the colours of each bearing as an option - red/yellow/blue. Question is what do I need???? If I knew that a full set of Ford bearings (main and big end) would be $325. I'd pay that.

https://www.tascaparts.com/v-2018-ford-f-1...ne--engine

You can also buy Ford main bearing cap bolts and side bolts + big end cap bolts.

Adrian


No point buying Ford bearings for such money if you can get genuine LR bearings for 500 GBP.


Yargo,

Interested in where you have a price for 'LR' bearings? Not managed that my self yet. But as the engine is made/designed by Ford then LR bearings are Ford bearings.

However $325 for Ford bearings makes £236 - some what cheaper than £500. To be fair no delivery and import taxes on that.

However you have made the same point twice - Am I missing something from your view point?

Adrian
 Series one 1949 - in bits, chassis is strapped to the ceiling in my garage (beside the canoe)
LR 90 - In bits
Disco 3 - currently in bits 
 
Post #222136630th Mar 2021 9:34 pm
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Yargo
 


Member Since: 25 Dec 2020
Location: Europe
Posts: 326

2014 Discovery 4 3.0 SDV6 HSE Auto Java BlackDiscovery 4

Breg90,

"Whether its the same version as the 3.0 in the D4 I am not too sure" - this is a problem. I would not risk buying if its not 100% guaranteed fit.

There is a guy in UK who sells genuine LR engine parts, including bearings.
  
Post #222137330th Mar 2021 10:02 pm
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Motolab
 


Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815

Netherlands 2006 Discovery 3 TDV6 HSE Auto Zambezi SilverDiscovery 3

@ Yargo,

“There is a guy in the UK who sells”

You could not be more vague TBH...
 Best regards
Harold

Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year

Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc. Wink 
 
Post #222137730th Mar 2021 10:11 pm
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