4.4L V8 Engine Failures

TMonk · Oct 17, 2009

Re: 4.4L V8 Engine Failures (gascos80)

Quote, originally posted by gascos80 »

Irrelevant...

The only relevant piece of info is whether or not the engine still has the counterbalance shaft of the same design.

Wrong, bro'. It's quite relevant.

Consider that the Noble's engine has been extensively reworked in order to produce much higher bhp. That means that the rods and pistons were likely replaced with stronger and lighter units. It also means that the crankshaft was reworked for both strength and to rebalance the engine.

Each of these mods changes the reciprocating mass. Unless the counterbalance shaft was re-worked (i.e. lightened), the engine would be rough. Not changing the mass of the counterbalance would also consume bhp -- this isn't something that makes sense in the Noble's application.

At the very least, a lighter counterbalance shaft would be less stressful on the bearing.

So it is not just the design, but the application. In this case, lighter counterweights to match an engine with low reciprocating mass.

Quote, originally posted by gascos80 »

Irrelevant...

If you think about the issue from an engineering perspective, you wouldn't be quite so dismissive of Dexobrick's post. What he says makes a lot of sense, bro'.

ImInPA · Oct 22, 2009

Re: 4.4L V8 Engine Failures (TMonk)

Actually, IMHO, the most relevent point in this thread is how few failures have been reported. That a design chane was made with the drainholes being added, shows that Volvo was responsive to even the potential of this being widespread. While I am glad that less than 10 instances of this failure have been reported on the Web, I would be very interested in knowing how Volvo is handling these folks.

gascos80 · Oct 22, 2009

Re: 4.4L V8 Engine Failures (ImInPA)

Quote, originally posted by ImInPA »

Actually, IMHO, the most relevent point in this thread is how few failures have been reported. That a design chane was made with the drainholes being added, shows that Volvo was responsive to even the potential of this being widespread. While I am glad that less than 10 instances of this failure have been reported on the Web, I would be very interested in knowing how Volvo is handling these folks.

Some people here claimed 40+ known failures. The internet is a great source of info in general, but has its limitations when it comes to such obscure issues. All you can get is just a general feeling whether or not the failure is of statistically significant magnitude.

So far, my feeling is - it is not. Not to the degree of sub-frame bushings or GM 4-sp transmissions. There, you would not have to search hard to see dozens and dozens and dozens of individual stories all over the web...

I also doubt that Volvo would publicize the issue much. They might make the side deals with the few "victims" that are not covered by some kind of warranty to keep the issue under the wraps.

TMonk · Oct 24, 2009

Re: 4.4L V8 Engine Failures (gascos80)

Quote, originally posted by gascos80 »

Some people here claimed 40+ known failures. The internet is a great source of info in general, but has its limitations when it comes to such obscure issues. All you can get is just a general feeling whether or not the failure is of statistically significant magnitude.

The general feeling I get is that 2005 V8 engines have a serious design flaw, bro'. The chance of this flaw leading to a failure is low, but the cost of failures are high.

Quote, originally posted by gascos80 »

I also doubt that Volvo would publicize the issue much.

This is exactly why it needs to be discussed here.

Quote, originally posted by gascos80 »

They might make the side deals with the few "victims" that are not covered by some kind of warranty to keep the issue under the wraps.

We know that Volvo different dealers don't necessarily treat customers the same. By knowing what one dealer does, owners can hold other dealers to the same standard of customer service.

For these reasons, I'm glad Swedespeed members are bringing this problem to light. http://********************/smile/emthup.gif

gascos80 · Oct 24, 2009

Re: 4.4L V8 Engine Failures (TMonk)

Quote, originally posted by TMonk »

The general feeling I get is that 2005 V8 engines have a serious design flaw, bro'. The chance of this flaw leading to a failure is low, but the cost of failures are high.

This is exactly why it needs to be discussed here.

We know that Volvo different dealers don't necessarily treat customers the same. By knowing what one dealer does, owners can hold other dealers to the same standard of customer service.

For these reasons, I'm glad Swedespeed members are bringing this problem to light. http://********************/smile/emthup.gif

Yes, if you enjoy light social chit-chat. Current level of shared information is not sufficient to draw a conclusions about the serious design flaw, bro'. But I respect your feeling...

TMonk · Oct 24, 2009

Re: 4.4L V8 Engine Failures (gascos80)

Quote, originally posted by gascos80 »

But I respect your feeling...

Just as I respect the feelings of [disappointment] shared owners who are affected by this failure, bro'.

gascos80 · Oct 24, 2009

Re: 4.4L V8 Engine Failures (TMonk)

Quote, originally posted by TMonk »

Just as I respect the feelings of [disappointment] shared owners who are affected by this failure, bro'.

So, You think that proclaiming the "serious design flaw" will ease their pain?

I should see it, given the avatar you have...

TMonk · Oct 25, 2009

Re: 4.4L V8 Engine Failures (gascos80)

Quote, originally posted by gascos80 »

So, You think that proclaiming the "serious design flaw" will ease their pain?

No. Just heighten their vigilance, bro'.

Sharing info on how Volvo responds to issues is good for Swedespeed members. Just like it was for this guy:

http://forums.swedespeed.com/z...28131

mitter · Dec 23, 2009

Re: 4.4L V8 Engine Failures (TMonk)

I would suggest that the problem with the Counter Balance Shaft in the 2005 V8 is far wider spread than Volvo will acknowledge. Mine failed 5 months outside of waranty at only 55,000 miles. The dealer where I get my work done (not the dealer where I bought my vehicle, as I live in Canada and bought out of the States) was only too happy to fix my engine for a cool $5,000. No help on the money side! I contacted Volvo Canada and they shut me down before I even had a chance to explain my situation. They explained that they are not associated with Volvo US and since I purchased my Volvo in the States they have no vested interest in considering the matter further. So much for protecting Volvo's brand. I'm going to escalate this matter to Volvo North America and see if I can get any satisfaction. One point of note is that I asked the dealership to drill a hole in the chamber that contains the CB Shaft before putting my engine back together and they had no problem following my instruction. Their willingness to modify my engine certainly leads me to believe that they are aware of the design flaw, so it makes me wonder why they are not prepared to show me some goodwill and cover the costs? Warranty should protect the consumer against product failure for a reasonable period of time. However, the value of protecting one's brand name should entice a manufacturer to stand behind their product, when they have a known design flaw, regardless of time. If this issue was a cheap / easy fix, I'm sure there would have been a recall, instead Volvo is going to sit back and keep its fingers crossed, hoping to hide behind its warranty expiry date. I'll post any success or failures I meet with while trying to get Volvo to stand behind their product. Sharing this type of information is the only way we will have any chance of combating these types of injustices!

TMonk · Dec 23, 2009

Re: 4.4L V8 Engine Failures (mitter)

Quote, originally posted by mitter »

Sharing this type of information is the only way we will have any chance of combating these types of injustices!

Correct.

You should also question anyone who trivializes such failures or attempts to muzzle discussion on the shortcomings of our cars.

Shimon · Jan 7, 2010

Hello

The counterbalance bearing design was upgraded in 2005 at serial number 68xx see the XC90 post for the countermeasure date.

Re the Noble M600, the exact details of the engine spec havent been released yet

schmit01 · Feb 21, 2013

I know this is an old thread... just wanted to drop my 2 cents. I have a 2005 Volvo XC90 v8, 97k miles, yadda yadda.... just got the call about two hours ago from the dealer. Counterbalance Shaft failure causing complete engine failure. Looking at 10k for repair. It is a real problem, maybe not widespread, but real.

itwontstopsnowin · Feb 22, 2013

Yes. It's a real (and widespread) problem with the 2005 XC90s only. The problem was discovered and fixed for 2006 which is before our S80s were ever introduced.

strikeoutss · Feb 22, 2013

schmit01 said:
I know this is an old thread... just wanted to drop my 2 cents. I have a 2005 Volvo XC90 v8, 97k miles, yadda yadda.... just got the call about two hours ago from the dealer. Counterbalance Shaft failure causing complete engine failure. Looking at 10k for repair. It is a real problem, maybe not widespread, but real.

Thats job is timed out for 36 hours and the required parts. First call volvo NA, second did they already tear into the motor? 3rd, did it snap the timing chain?
You can get an 07 v8 dropped in for less than 10k. Ofcourse you need a reliable indy for that. Where do you hail from? My buddy just finished up today putting one of these motors back together. Engine sounds like a dream.

Sent from my SGH-T999 using Tapatalk 2

itwontstopsnowin · Feb 23, 2013

strikeoutss said:
Thats job is timed out for 36 hours and the required parts. First call volvo NA, second did they already tear into the motor? 3rd, did it snap the timing chain?
You can get an 07 v8 dropped in for less than 10k. Ofcourse you need a reliable indy for that. Where do you hail from? My buddy just finished up today putting one of these motors back together. Engine sounds like a dream.

Sent from my SGH-T999 using Tapatalk 2

Everything this man says is 100% true. You have more options here than dropping 10 grand at the volvo dealer.

grooteschuur · Mar 30, 2013

V8 Engine serial number

Howdy Everyone, I am one of the "lucky" owners of a 2005 Volvo XC 90 V8, a very rare sight over here in France where almost all XC90's are Diesel (under)powered.
I read here that V8 engines bearing a number higher than 6833 had been re-designed.
Where is that number to be found on the engine?
Thanks all

itwontstopsnowin · Mar 31, 2013

You may have more luck if you ask in the XC90 forum. They know a lot more about this issue. This issue never came into play with our S80s since they didn't begin producing them until the 2007 model year.

strikeoutss · Mar 31, 2013

grooteschuur said:
Howdy Everyone, I am one of the "lucky" owners of a 2005 Volvo XC 90 V8, a very rare sight over here in France where almost all XC90's are Diesel (under)powered.
I read here that V8 engines bearing a number higher than 6833 had been re-designed.
Where is that number to be found on the engine?
Thanks all

There was not a redesign on the bearing on the counter balance shaft. A small weep hole was drilled under the sealed bearing to drain away water that collected there and ruated the bearing cause it to fail which in turn either caused the timing chain to snap(generally resulting in bent valves) or the shaft would hit the block and cause structural damage to the block requiring engine replacement. This "redesign" did not happen until mid 2006 production for cars in the united states, not sure if that is the same for france. good luck.

Sent from my SGH-T999 using Tapatalk 2

JanBen · Mar 13, 2014

Hi All..
could someone help me figure out the engine block number on the 05 XC90 v8 I am looking at, VIN YV1CZ852951192431?
I am trying to stay away from block < 6140 (if thats the right number).
To clarify, I have no access to the car..

Jan
03 S60

garbergtsi · Mar 14, 2014

ImInPA said:
Actually, IMHO, the most relevent point in this thread is how few failures have been reported. That a design chane was made with the drainholes being added, shows that Volvo was responsive to even the potential of this being widespread. While I am glad that less than 10 instances of this failure have been reported on the Web, I would be very interested in knowing how Volvo is handling these folks.

You have to realize that 99% of Volvo owners could care less about swedespeed.

This is a very common problem with the early motors.

4.4L V8 Engine Failures

TMonk

ImInPA

gascos80

TMonk

gascos80

TMonk

gascos80

TMonk

mitter

TMonk

Shimon

schmit01

itwontstopsnowin

strikeoutss

itwontstopsnowin

grooteschuur

itwontstopsnowin

strikeoutss

JanBen

garbergtsi

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