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Auxiliary shaft seized ??? 

 

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 Post subject: Auxiliary shaft seized ???
Posted: Sun Jan 02, 2011 10:26 pm 
Getting Side Ways
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Power: 482 rwkw

Location: Penrith
NSW, Australia

Two engines a friend has gone through timing chain issues with shaft binding up..
Drag engines only with 370 rwkw turbo engine...[What else?]
Seems auxiliary shaft seizes and breaks chain etc...
These engines have 80,000+ klmrs so should be well
loose.. One thing is the oil temp could be cold as there isn't much chance
of warming oil before a run..Or maybe too hi viscosity ??
Next build we may linish or put oil groves on shaft for better oil supply ...
Anyone else had these issues ???

 

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 Post subject: Re: Auxiliary shaft seized ???
Posted: Sun Jan 02, 2011 10:37 pm 
Getting Side Ways
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Ride: EB2 Ghia,Mighty Boy,Eb1 Xr8 5spd

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VIC, Australia

I've read about them breaking in the EA to ED engines, but I have not yet managed to break one myself.

Cheers

ToranaGuy

 

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 Post subject: Re: Auxiliary shaft seized ???
Posted: Sun Jan 02, 2011 11:04 pm 
Getting Side Ways
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Needle roller bearings will fix it, Bearings would need inner and outer races. And you can greatly reduce the amount of oil needed at the shaft, meaning less chance of starving other areas.
I'd also be finding a way to heat the oil.

Or you could have phosphor-bronze bearing made and machine the shaft down to suit.
You will need to use a zinc dithiophosphate additive in the oil though.

They are to two solutions we use to fix the center cam bearing failure problem in Ford 2L OHC engines with big cams and high RPM

 

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 Post subject: Re: Auxiliary shaft seized ???
Posted: Sun Jan 02, 2011 11:21 pm 
Getting Side Ways
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Age: 35

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Joined: 8th Dec 2004

Gallery: 25 images

Ride: EB2 Ghia,Mighty Boy,Eb1 Xr8 5spd

Location: ** In the Shed! **
VIC, Australia

What about a ball bearing setup like the bearings used in a ball bearing turbo? Machine the shaft down a tad, slip the bearing on & slide the shaft back into the block? Possible?

Cheers

ToranaGuy

 

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 Post subject: Re: Auxiliary shaft seized ???
Posted: Mon Jan 03, 2011 12:13 am 
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Ride: '06 BF GT-P

Power: 293 rwkw

Location: Canberra
ACT, Australia

Years ago now, the aux shaft on my EL seized, chain didn't break, but instead tore the aux sprocket off, resulting in lunched engine.

 

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 Post subject: Re: Auxiliary shaft seized ???
Posted: Mon Jan 03, 2011 12:29 am 
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Ride: ef xr6, bf typhoon, mk2 cortina

Location: adel
SA, Australia

had the same problem with my ef xr6. after killin a couple of auxiliary shafts and a few chains found it to be the cam angle sensor(where the dizzy sits it the el's). it had to much up and down play in the mech. causing it to lock up which inturn locked up the aux shaft and oil pump. mite not be the cause of ur probs but was the cause of mine.

 

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