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PostPosted: Tue Oct 11, 2005 1:26 pm 
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Kris wrote:
The Eagles have already had a few processes done to them by the time you receive them


Apparently Cadburys supply them in a nice plastic wrapper. Apparently the first "process" is to remove this ROFL

JP, I think they're milk but Plain is an outside possibility

But seriously, any rod can and will fail as Kris said. The only useful info you can take from this is why

I suspect that the alledged rework of the Eagle means that they discovered a recurring theme.....
Although it's worth remembering that this might not have even come from 3S-GTE rod failures. If they identified a potential weakspot in another design they might have revamped their entire range if it was something they'd overlooked!



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PostPosted: Fri Oct 21, 2005 7:59 am 
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I have a interest in this thread and of course the Eagle rods..
iirc someone on the other froum spoke of needing to modify the rod, small end, clearance?
Does any one know any more about this?

did they change the part number for the " Reworked " rods?

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PostPosted: Fri Oct 21, 2005 9:56 am 
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The little end may need a different bush, but to be honest this is part and parcel of an engine build in my mind

I have no details of a different number for a different rod :(

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PostPosted: Fri Oct 21, 2005 4:58 pm 
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Hi Kris, You think the supplied small end with the eagle needs to be replaced?

I would think this should be correct for the application and NOT a part that should be replaced with a Brand new rod surely?

The rods are designed for the 3SGTE applications, sizes etc
Any ideas what part of the small end is incorrect, wrong size hole, side play ?

TIA

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PostPosted: Fri Oct 21, 2005 5:28 pm 
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Hi Steve - that's a bit like saying a big end shell should fit surely? To ensure it fits correctly the clearance needs to be measured!

imho the same is true for the little end. What if you fitted an aftermarket piston? The pin may be a different size? What about tolerances, everthing has a tolerance? Whether it's right or wrong, it needs to be checked.

I believe if anything the clearance between the pin and the bush is the issue

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PostPosted: Fri Oct 21, 2005 5:47 pm 
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Hi Kris, i see your point...
If a crank shaft is with in spec per the book ( STD ) then surely new STD shells can be used, aftermarket shells are sold in either STD, U/S or O/S iirc?
Maybe Im looking at this wrong though?

I will certainly pay attention to this area when im assembling the engine though ;)

Maybe I will be the only person brave enough, or maybe that should be stupid enough, to use the Eagle rods? :-)

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PostPosted: Fri Oct 21, 2005 7:39 pm 
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I'm sure no-one would have said too many bad things about these rods unless one person mentioned it on the OC forum! :shock:

I know of at least one car over the 500hp mark and 8k rpm+ running these....no dramas so far!

imho if the crank is stock and the bearings are stock then the clearance STILL needs to be measured because the oil clearance is sooooo small and critical. Getting the clearance wrong here may mean another rebuild?

But, I suppose you have to put this into context, if you whack the power up then the reliability and longevity of components are also dramatically reduced and there will be failures - all imho :D

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PostPosted: Fri Oct 21, 2005 7:50 pm 
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Kris, Are you still using the eagle rods in your rebuild?

500BHP sounds a good effort imo... :shock:
Not sure how long a 5-600bhp 2L car will last tbh, regardless of the rods :-)
The corolla has done very well but thats not a 2L ;)

Again i will be sure to check oil clearances for the big ends


Kris wrote:
I believe if anything the clearance between the pin and the bush is the issue


Is there a clearance we should be aiming for here? Im guessing the toyota spec is no use as aftermaket pistons and con rods are being used?

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PostPosted: Fri Oct 21, 2005 8:18 pm 
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Quote:
Is there a clearance we should be aiming for here?


The books says 0.005 - 0.011mm as I say, it's a very small measurement...

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PostPosted: Sun Oct 30, 2005 11:03 pm 
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Hi Guys after some help/input here..
Im now in the process of building the engine up and have measured some of the parts i have:

Piston Pin O/D 22.47mm

I have measured the space between the inside of the piston and small end of the rod, Rod pushed over to one side:- 0.093"/0.23622Cm


Im in need of the measurement of the Eagle Con rod small end, I don't have the *CORRECT* tool to do this.
Kris do you know this measurement?

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PostPosted: Sun Oct 30, 2005 11:24 pm 
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Steve - the pin OD will almost match the rod bush ID, take off a gnats testicle.

I would measure both and establish they read pretty much the same on a vernier and then go for a fitment to see how well the pin moves inside the rod bush. If it fouls then the clearance is not enough.

I would suspect that a good camparision for clearance/fitment can be had by inserting the pin into your piston and verifying that moves freely?

Most verniers/mics seem to measure down to 0.01mm. Smaller than this is a bit tricky imho as if you push a little harder on the vernier then you can get whatever reading you want! :shock:

Other than that, take it to a professional engine builder and ask him what he thinks?

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PostPosted: Sun Oct 30, 2005 11:45 pm 
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Kris, I have done a test fit and it "Feels" OK.

Do you have the measurement of the I/D of the small end of a Eagle rod?
The Eagle instructions are a little vague to say the least.

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PostPosted: Mon Oct 31, 2005 6:53 am 
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Beasty wrote:
Do you have the measurement of the I/D of the small end of a Eagle rod?


Unfortunately I don't have the rods here at the moment, they are inside a block :(

I think you need to accurately measure the pin and the rod little end and then do a test fitment

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PostPosted: Tue Nov 01, 2005 8:06 pm 
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Hi Kris by that i take it you are using the rods then :-)

Did you measure yours before installing them?

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PostPosted: Wed Nov 02, 2005 9:37 pm 
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Steve - yes I am using the rods. I did measure them but I do not have the measurements handy at the moment :(

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