Concrete in the Crossmember?

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Sep 05, 2010 09:30:24
Kerrvert

Hi All,

I ran into something yesterday that boggled my mind. I'm redoing the front suspension on my '64. I flip over the front crossmember to look at the underside and the center section is filled with what looks like old dirt clods. I figured it's just a bunch of old dirt that got stuck in there. So I start cleaning it out. I wind up with a pile of what my architect wife identified as lightweight concrete...10-15 lbs. worth! The thing was full of it and what came out was completely homgeneous. At some point someone must have deliberately filled the crossmember with concrete.

Have any of you encountered anything like this before? Did it come like that from the factory? Why on earth would someone do it?

Thanks...Jim

Sep 05, 2010 09:33:00
gooser

a typical weight centering device. adds balance.





Sep 05, 2010 10:22:24
losmorob

Keep an eye out for Jimmy Hoffa under there.

Sep 05, 2010 11:10:24
ddubois

Jim - I think that you may have just won Spikemichael's 'Dumbest DPO contest'
Cheers,

Sep 05, 2010 11:29:56
gooser

was your car ever in iraq? concrete there will also help protect the occupants if a bomb blows up underneath you.

Sep 05, 2010 12:08:52
RSS

Ballast. Keeps the shiny side up.

Sep 05, 2010 12:55:23
Rod H.

What sits on a hilltop at night, howls at the moon, and has cement in it?

A coyote. I put the cement in to make it harder.

Maybe they thought it would do the same for the crossmember? :D

Sep 05, 2010 14:54:52
DSteiNeuro

Factory option

Sep 05, 2010 16:11:25
Fieldbuilder

I found a golf ball mixed in with the dirt.

Sep 05, 2010 16:12:48
Jeff Delk ZB Varitone

I think the MGB is at something like 52%-48% on weight distribution to begin with - and that bias is towards the front already - can't imagine why you would need to add weight to the front....

Sep 05, 2010 17:18:30
ClayJ

I would suspect some type of old dried out undercoating. Probably some dealer applied or after-market for big $$$.

Sep 05, 2010 17:29:56
Jim K

Well, there are a lot of things that I don't know.

Sep 05, 2010 17:37:32
Rich in Vancouver

I have taken the front fenders off an MGB and found what appeared to be adobe bricks in the void above the rocker panels.
They were quite solid and similar to lightweight concrete.
It could be that the car lived in a dry dusty climate and the stuff just accumulated in there.

Rich

Sep 05, 2010 18:42:29
Benny

As crazy as this sounds, perhaps the car had a vibration that some useless mechanic couldn't cure, so he attempted to shift the natural frequency of the car's front end by packing the crossmember full of concrete.

Sounds silly, I'll admit, but I've seen a factory service manual for an old American car that advocated hanging large lumps of ballast behind the front and rear bumpers to move the car's body away from its resonance frequency.

Sep 05, 2010 23:38:23
MudSnow

I have noticed when carrying 150# of sand during the winter, the ride becomes smoother and more comfortable.

Sep 06, 2010 05:27:10
80MGBLE

If you didn't find any reed bar, he was for sure a DPO.

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