Avoneer
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| posted on 15/3/05 at 06:50 PM |
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Bar "E"- between FU's or as per book
Is the "E" front crossmember designed to go between the FU bars wherever they will end up, or shall I fit it as per the dimensions in the
book?
Cheers,
Pat...
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clbarclay
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| posted on 15/3/05 at 07:10 PM |
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Fit E first, then FU 1/2 later.
The FU tubes should fit on top of E
FU tubes are best fitted once you have some form of jig to possition top wishbone brakets first.
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Avoneer
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| posted on 15/3/05 at 07:22 PM |
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What happens if they don't line up with E?
Shall I do E at the same time as the FU's?
Pat...
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However a large number of electrons were terribly inconvenienced.
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clbarclay
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| posted on 15/3/05 at 07:33 PM |
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E sits between side rails F1 and F2. FU1 and FU2 sit on top of E/F tubes.
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clbarclay
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| posted on 15/3/05 at 07:35 PM |
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Personally I have left the FU tubes till i have my front suspension made and a jig to hold all the suspension brakets in place.
The book does not give a precise position for either FU tube, but the suspension braket that goes onto the FU tubes need to be very accurate.
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Avoneer
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| posted on 15/3/05 at 07:56 PM |
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Yep, was going to leave the FU's until I had the suspension sorted.
Am I best to leave E out as well then and do the FU's and E together?
Cheers,
Pat...
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However a large number of electrons were terribly inconvenienced.
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clbarclay
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| posted on 15/3/05 at 08:05 PM |
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As far as I can see there is no reason to leave tube E out when initial buildiong the chassis.
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Avoneer
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| posted on 15/3/05 at 08:33 PM |
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Sorry, not explaining this very well.
If FU1 and FU2 run on the same plane as E, and FU1 and FU2's final position has not yet been set, surely I should leave E out until I know
exactly where FU1 and FU2 are going.
Pat...
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However a large number of electrons were terribly inconvenienced.
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clbarclay
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| posted on 15/3/05 at 08:54 PM |
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The definate position of tube E is given in the book. You also need E in to know where to put tubes G1 and G2.
Tube E does not govern the psoition of the FU tubes.
Seing as how tube LD will hold the F tubes steady you could leave tube E out for the time being, but would make sure tubes G1 G2 and E are in place
before fully welding chassis, as G tubes give triangulation to lower engine bay.
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Avoneer
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| posted on 15/3/05 at 09:00 PM |
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Yep, will do that.
Will be tacking the whole chassis before fully welding it.
My G'2 will be funny as I amusing a blade engine so yet to position them.
Thanks,
Pat...
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However a large number of electrons were terribly inconvenienced.
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Mix
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| posted on 16/3/05 at 07:20 AM |
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I would say yes, leave 'E' out until you fit the 'FUs'
When you come to offer up your suspension jig you will see that one possible way of alligning the assembly is to set the lower ends of the
'FUs' further inboard, (ie on tube 'E' . This option gets around the need to have the 'FUs' set inboard on the top
rails, it can however interfere with the run of the steering column so watch out for that one!!
Providing tube 'E' does not foul the engine I feel it should be coincident with the 'FUs' so keep your options open and fit it
when you fit them.
Mick
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James
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| posted on 17/3/05 at 12:17 AM |
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I agree with Mick there.
An FEA guy could confirm or deny this but I believe that 'E' is quite a significant brace for FU1/2.
In a 'book' chassis FU1/2 sits on the outer rail (D?) such that it gets in the way of the lower rear suspension bolt. If 'E'
goes in at same time as FU1/2 then the lower end of FU1/2 can be inboard slightly to avoid this.
HTH and is clear.
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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paulf
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| posted on 19/3/05 at 09:50 PM |
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I thought I would be clever when i built my chassis and moved the bottom of tubes FU1 and 2 inboard to give room for the bolts.However when i came to
fit the steering link bar it went straight through the centre of the appropriately named FU tube.I then had to remove and refit the tube.
Paul
quote:
In a 'book' chassis FU1/2 sits on the outer rail (D?) such that it gets in the way of the lower rear suspension bolt. If
'E' goes in at same time as FU1/2 then the lower end of FU1/2 can be inboard slightly to avoid this.
HTH and is clear.
Cheers,
James
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