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| TickfordXR |
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Hey im putting an AU engine into my EB and we snapped a flywheel bolt the other day... so i bought 6 new ones i was just doing one up and snapped it again.. im doing em up to 100 - 115NM that it says in the ellerys manual
so whats the correct tension in NM?
_________________ White EL Series II XR8, manual, high flow cats, single 3" exhaust and Quarterhorse = 236rwhp and 14.18@97.5mph |
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| stockstandard |
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haynes say 110nm
_________________ Stoke me a clipper, I'll be back for Christmas |
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| smiley235 |
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does your tension wrench need re-callibration?
_________________ 178.3 rwkw
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| mitchg911 |
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TickfordXR wrote: Hey im putting an AU engine into my EB and we snapped a flywheel bolt the other day... so i bought 6 new ones i was just doing one up and snapped it again.. im doing em up to 100 - 115NM that it says in the ellerys manual
so whats the correct tension in NM? yeh youve got it... do em up til they break, then back off half a turn 
ie back to where they were tight again
if your breaking them, is there something in the bottom of the holes? oil, grease? anything that could cause hydraulic lock? they shouldnt break at 110nm.. -mitch
_________________ BF XR6T 6spd Auto. 60lb injectors, Hybrid Cooler, Custom Piping, Custom Surge Tank, Actuator. |
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| efbignik |
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use a bit of brake clener spray some in the hole and it will dry up any oil and stuff
_________________ EFBIGNIK 145.9 RWKW Falcon / 16.27 @ 86.72mph (Stock)
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| snap0964 |
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More reading: http://www.fordmods.com/forums/viewtopic.php?t=30043
If you haven't got a thread locker with your bolts, use Loctite 262 or similar.
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| arm79 |
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The flywheel bolt holes in an AU crank are a fair bit shorter than in previous cranks and require special shorter bolts. Its possible the bolt is bottoming out and snapping.
Are you using the AU specific bolts, or trying to use your existing EB bolts? |
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| TickfordXR |
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1989 - 2005 use the exact same bolt
_________________ White EL Series II XR8, manual, high flow cats, single 3" exhaust and Quarterhorse = 236rwhp and 14.18@97.5mph |
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| arm79 |
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TickfordXR wrote: 1989 - 2005 use the exact same bolt
Nope... I know of 4 syle bolts used in that time. |
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| voxace |
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Who else other than ford would sell flywheel bolts, just places like repco and stuff?
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| TickfordXR |
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Well i just rang up ford..
AU = 75NM EB = 115NM I also got him to check on the computer and they both have the exact same flywheel and bolts so why the tension change between years?
_________________ White EL Series II XR8, manual, high flow cats, single 3" exhaust and Quarterhorse = 236rwhp and 14.18@97.5mph |
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| stockstandard |
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TickfordXR wrote: Well i just rang up ford..
AU = 75NM EB = 115NM I also got him to check on the computer and they both have the exact same flywheel and bolts so why the tension change between years? different crank
_________________ Stoke me a clipper, I'll be back for Christmas |
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| arm79 |
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TickfordXR wrote: Well i just rang up ford..
AU = 75NM EB = 115NM I also got him to check on the computer and they both have the exact same flywheel and bolts so why the tension change between years? Technically Ford is wrong. If they look into microcat they will see the bolt has been superceeded a couple of times. I have been in the situation where microcat gave the me 'right' flywheel bolt, but it didnt suit the application. A little investigation into the part found that microcat was wrong. Obviously there has been a torque setting change and that we didnt know about, and that would be the problem. |
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| snap0964 |
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TickfordXR wrote: I also got him to check on the computer and they both have the exact same flywheel and bolts Maybe this is like head gaskets, where the AU parts are the only ones available any more, and th AU bolts will still fit earlier models, despite being shorter??TickfordXR wrote: so why the tension change between years? In the link I posted earlier, the torque variations were substantial depending on the grade of bolt, hence the other reply where it has been said that there are a number of bolt types.
Might be best to talk to an engine reconditioner/rebuilder and ask them, and ask what they do when fitting a falcon flywheel. And let us know what the reply is . . . . . .
_________________ 96 XH Longreach 'S': LPG, Alarm, 3.23:1 LSD, Cruise, Trip Comp, ABS, Power Windows, Mid Series Dome Lt, Climate Ctrl |
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| TickfordXR |
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I spoke to my uncle whos a mechanic...
He said he does to em 75NM so that it is then
_________________ White EL Series II XR8, manual, high flow cats, single 3" exhaust and Quarterhorse = 236rwhp and 14.18@97.5mph |
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