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« Reply #20 on: January 24, 2003, 08:21:17 AM » |
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the gearbox crossmember does hang a really long way from the floor. you said it didn't hang below the exhaust, but i notice that it too is a long way down from the floor. so maybe they just simply leaned the engine back to buggery on its original mounts, hanging the end of gearbox really low....
anyway, just chucking around some theories
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simon
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spider
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« Reply #21 on: January 24, 2003, 08:54:37 AM » |
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:)Hi Everyone, Thanks for the replies. The mounts are right to the back on the crossmember, as for the height i am not sure on what length the mounts should be, that is the one's welded on the crossmember. Can anyone give me a measurement so i can check. It is really starting to bug me. Anyway thanks again.  Cheers Spider  |
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mcl1959
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« Reply #22 on: January 26, 2003, 02:24:41 AM » |
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I'm with Gree, I think the engine has been leaned way back. My Trimatic rear mount is level with the crossmember under the floor and this has the engine sitting on the correct angle.
I used a EK Hydro floor, but the crossmember depth is the same as the FC, I used a slightly modified HR gearbox mount for the rear which is flat.
The trans in the picture seems to sit about 3 inches below the crossmember, and I think it would be a real problem with a lowered car.
Ken
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spider
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« Reply #23 on: January 26, 2003, 06:35:37 AM » |
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:)Hi Ken, Before i took the front end off today i measured the gearbox mount and the front suspension, and the gearbox is actually a quarter of an inch higher than the front crossmember. Would you know how high the bolt is from the base of the engine mount on the crossmember to where it bolts thru the engine mount  Cheers Spider |
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mcl1959
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« Reply #24 on: January 26, 2003, 07:02:32 AM » |
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Paul, when I said crossmember, I meant the crossmember under the front floor, not the front suspension crossmember.
Bolt height dimension you asked for is about 2 inches - standard HR front engine mounts cut from the front and moved to the back.
Ken
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spider
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« Reply #25 on: January 26, 2003, 07:42:50 AM » |
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Hi Ken, Sorry about that, I measured where you were talking about and it is 4 & 1/2 inches hanging past the crossmember. The engine mounts are right they are 2 & 1/2 inches from the base to the hole centre and they are at the back. I remember the tailshaft not having much of a angle on it, so i am still buggered. The bloke i bought it off was right into hotrods, so unless he had some super secret of doing it, i will never know.  Cheers Spider |
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nicko
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« Reply #26 on: February 10, 2003, 10:19:02 PM » |
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Its funny how we make life hard for ourselves by always looking at the hard way of doing things.
the guy who made this bracket has subscribed to the KISS (keep it simple stupid)method with perfect results,dont question why it works just copy it
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Ed
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« Reply #27 on: February 11, 2003, 06:29:33 AM » |
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Perfect.. maybe not...
the x-member metal looks pretty weak, the stress on the 2 hanging bolts is a result of poor design and takes the weight of both engine and box plus fwd/backward forces caused by acceleration and deceleration.
there probably should be some gussets reinforcing the hanging x-member rather than these bolts.
Im not keen on the thru the floor mounting either, even tho its got spreader plates, the metal around it may fail under high stress.
sorry. i wouldnt do this to my own car.
Ed
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spider
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« Reply #28 on: February 11, 2003, 07:31:46 AM » |
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 The funny thing about all this crossmember debate is, that it has been passed by the TRANSPORT DEPARTMENT, and in Q.L.D. that is not easy for they are strict. The bracketery made up for the crossmember is 8mm thick, the side pieces that you see holding the gearbox bracket just doesnt have the spreader plate but also has a bracket bolted to the underfloor crossmember, this is all done in 8mm right angle steel, and gusseted. You can swing off the brackets and they dont move. the metal around it may fail under high stress.
The only way it will fail is if i had a high impact collision, and the original all steel steering column which does not have a crumple zone, would spear straight thru me first, before i tore out the floor. But anyway you will see me at the nationals and everyone can have a look. If it is good enough for the QLD TRANSPORT DEPT and they must think it is safe, it is good enough for me Cheers Spider
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Effie C
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« Reply #29 on: February 11, 2003, 08:31:00 PM » |
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Spider
We are all waiting with baited breath to see this in the flesh.
As to previous suggestions that the motor was tilted back, to get that much angle at the back the tappet cover would have to be bashing it's way through the fire wall (Not much room there to start with).
Maybe the installer has found a way to do it, maybe he lowered the whole front crossmember, ie spaced it off the front chassis.
Maybe maybe maybe.
Maybe we will all see the answer at the Nationals and to those that aren't going, maybe you will never know.
John M
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LIVE LIFE ONE DAY AT A TIME,FOR TOMORROW MAY NEVER COME!
Photo Site:http://img53.photobucket.com/albums/v161/EffieC/
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Ed
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« Reply #30 on: February 11, 2003, 10:19:16 PM » |
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I stand corrected Spider! will have to see it at the Nats. Cheers Ed |
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