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e series 4.0 missing under load?prob found AUX SHAFT FAILING 

 

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Posted: Sat Dec 13, 2008 12:17 am 
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is there any test for an auxilarly shaft failure?

 

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Posted: Sat Dec 13, 2008 1:14 am 
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snap0964 wrote:
Got pics of the oil pump gear and dizzy drive gear Troy ???
I suspect differing wear rates on the gears.


There's no gear on the oil pump, its driven by a hex key off the distributor, which is driven by the aux shaft.

 

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Posted: Sat Dec 13, 2008 1:25 am 
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Holden 202s with high volume/pressure pumps had this problem also.
I use to mod the oiling system to flow better and to only have around 45psi oil pressure and pretty much cured it.

On the HiPo turbo falcon engine I am building ATM have ported the stock oil pump and all oiling chanels and have a oil feed to the drive gear. I doubt there will ever be a problem

 

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Posted: Sat Dec 13, 2008 1:26 am 
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Yeah im a tad worried as im running a high volume oil pump on my turbo Falcon.

 

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Posted: Sun Dec 14, 2008 12:25 am 
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and one of the first things my engine machinist (southside engine centre) mentioned when I bought the block in was just to use the stock pump as they have seen engines rooted because running the HV pump

 

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Posted: Sun Dec 14, 2008 1:42 am 
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turbotrana wrote:
Holden 202s with high volume/pressure pumps had this problem also.I use to mod the oiling system to flow better and to only have around 45psi oil pressure and pretty much cured it.
With all the red motors I ran, I always ditched the resin camshaft gear and put an alloy one on. I noticed the last red motors (VB commo) ran a plastic dizzy gear - this was replaced with a metal one too.
FLASH wrote:
snap0964 wrote:
Got pics of the oil pump gear and dizzy drive gear Troy ???I suspect differing wear rates on the gears.

There's no gear on the oil pump, its driven by a hex key off the distributor, which is driven by the aux shaft.
I was thinking holden red motor when I wrote this - til later I noticed the hex drive directly runs the pump rotor. Full load goes through the drive gear nonetheless.
xfpaul wrote:
thinking i will pull the dizzy and change the gear to the au idler/oil pump drive then should be au on au just in case they were mates for 100thousand ks with no troubles
Probably a good idea with EF/AU blocks with dizzy is to put the original CAS gear onto the dizzy, so the gears are matched. Then maybe inspect the dizzy/aux gear every 10 000k or so.

 

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Posted: Sat Dec 27, 2008 8:50 pm 
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worried i have the same issue... did you find filings in the oil??? i dumped my oil thnking i had same prob as i have same symptoms but found nothing
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Posted: Sat Dec 27, 2008 8:54 pm 
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no mate i didnt find anything in the oil!
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Posted: Sat Dec 27, 2008 9:25 pm 
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apparently this is not an unknown problem on many falcons....not just the AU...I think a bronze gear is available as a replacement

 

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 Post subject: Re:
Posted: Sun Feb 22, 2009 6:48 pm 
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TROYMAN wrote:

an un comfirmed theory is that possably ef and au may have had different aux shafts fitted??(different casting strength?)
but this is just a theory...



i thought i might revive this thread again..
as iv just fitted a au engine into my ed.
and to be cautious i was going to buy a new el aux shaft from ford..
and when speaking to the guys at ford the aux shaft has the same part number from ea to au..
so there would be no point in putting a new el aux shaft in this new au engine as its actually the same item....
im a bit on the cautious side with this engine and ive even fitted the gear from the au dummy shaft to a new bosch dizzy just incase..
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 Post subject: Re: e series 4.0 missing under load?prob found AUX SHAFT FAILING
Posted: Wed Feb 25, 2009 6:25 pm 
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so whats the answer to a new aux shaft failing 2 hours after new from ford????
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 Post subject: Re: e series 4.0 missing under load?prob found AUX SHAFT FAILING
Posted: Wed Feb 25, 2009 6:33 pm 
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i should have mentioned that when i spoke to ford???? lol
it still got me stuffed how or why these aux shafts fail in some engines but not in others?
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 Post subject: Re: e series 4.0 missing under load?prob found AUX SHAFT FAILING
Posted: Wed Feb 25, 2009 6:54 pm 
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unfortunately i'd say it's a QA issue, friday jobs as compared to monday jobs... or inconsistant base metal.
although everyone has their own driving traits and most people are inclined to break one particular thing more than others, for example some people are clutch burners, gearbox thrashers, diff smashers, bottom end blowers etc. maybe your just inclined to throw auxillary shafts troyman :D lol

 

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 Post subject: Re: e series 4.0 missing under load?prob found AUX SHAFT FAILING
Posted: Wed Feb 25, 2009 7:46 pm 
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:lol: :lol:
well if it happens to this engine i think ill change my user name to aux shaft killer.. :lol:
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 Post subject: Re: e series 4.0 missing under load?prob found AUX SHAFT FAILING
Posted: Thu Feb 26, 2009 12:54 am 
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Well we know that all the aux shafts have the same part number.. but what about the block in that area? does it have slacker tolerances or something?

There must be a reason I've head of all these AU aux shafts and none for previous models.

perhaps a big batch of aux shafts for AU's were substandard and they decided it didn't matter when all they were turning were CA sensors.

seems very odd that nearly every story of aux shaft woe on here or elsewhere involves an AU motor.
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