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| jhammons01 | Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
 
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CentralCoaster, you stated at one time that you wish you had ground off the front-top of the C-Beam so that it wasn't so tight getting it and out.
Today, since I was pulling mine out, I was thinking about what you said. The last two times I did mine, it was at the same time as when I was doing the D36, so, it wasn't as hard. But today it was beotch getting it to drop.....now I am wondering about going back with it. Should I use a cut-off wheel and take off a 16th of an inch?? |
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Posted on: 2010/4/22 6:30
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| Weavsvet | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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I've had mine out twice now with no issues like you speak of. If you grind it wouldn't it just close back up when you tighten the bolts? Maybe a beveled edge to get it started would help. Eveything has to be lined up pretty good to keep it from binding.
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Posted on: 2010/4/22 11:00
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1996 Corvette Coupe,AFR 195 street Eliminators,Edelbrock LT4 Air Gap intake manifold,9.5" 2800 stall,TPIS LT headers,Bullet 226/230.565.565/111 lsa cam,1.7 Scorpion rr's,EWP, X Pipe, Stock Exhaust,Elec.Cutouts,Dana 44/3.45, Tune by Wester's Garage |
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| Matatk | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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I fought with my c-beam putting the trans back in the other day. Turned out the jack was making the trans cockeyed and not lining it up properly. Once it was level, it slid right in. Make sure you've got it lined up properly and you should be good to go.
Matthew |
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Posted on: 2010/4/22 11:36
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| RickAnthony | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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ASE Master Certified
 
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I don't know why people have such a problem with the C beam...
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Posted on: 2010/4/22 12:39
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My Automotive Blog autoserviceupdated.blogspot.com CORVETTE SERVICE & REPAIR RickAnthonyMotorsports.NET |
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| bogus | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Grand Imperial Pooh-Bah
 
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the problem varies. I suspect it's a combination of shoddy Corvette build quality, drivetrain configuration and good or bad karma.
I have had my c-beam out a few times over the years... and once it was easy, another, a real bitch. go figure. |
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Posted on: 2010/4/22 14:15
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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You guys (most of) are missing it. The side where the C-beam has to slide down past the tranny is what I am referring to.
The Floor board for the passengers knee area is so close to the snout of the tranny that it is hard to get it past the tranny/floor board. Once you get it down from there it comes out......You have to slide the thing backwards and then using a screwdriver pry it to the side and downward to get it past the shelf of the tranny snout. Once you get it on it's way down...it is still real tight. I want to grind that upper part......next to the holes......not make the I.D. clearance greater. the I.D.s slide around ok.....I have done that one twice already...it's just with the tranny and D36 still in place...it is tight. Being a lazy person at best, I want to grind off that area and make the installation/removal easier. |
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Posted on: 2010/4/22 14:26
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| CentralCoaster | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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John, loosen the trans bolts enough to let you kick it to the drivers side a bit so the beam has room to go out/in.
I took about 1/4" off the top side edge of the beam about 4" long to make it doable without loosening the trans. The ZF6 has way less room than the 4+3. I've also noticed the newer C4s have a more carefully made floor pan... On mine some of the seams crowd into the tunnel and I didn't want to trim them. I can't even pull the driveshaft without removing the beam bolts... but on other C4s I've been able to easily. |
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Posted on: 2010/4/22 15:03
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1985 Z51, ZF6 |
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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^^Ahhh...nice tip....
See that is the way I did it with the D36.....everything sort of slowly meshed together prior to anything being tightened down. The C-beam was slid onto the D36 and then the two pins that held the D36 to the body were put in...then the c-beam bolts were hammered in place...you get the picture. This time I guess I need to be more fluid with the assembly I'm still going to grind off that area....LOL |
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Posted on: 2010/4/22 15:27
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| corvetteronw | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Here are some pics I took so you can visualize the C beam:
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Posted on: 2010/4/23 4:37
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| corvetteronw | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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One more. Taken at Carlisle '07:
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Posted on: 2010/4/23 4:38
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A VETERAN IS SOMEONE WHO AT ONE POINT WROTE A BLANK CHECK MADE PAYABLE TO THE UNITED STATES OF AMERICA FOR AN AMOUNT OF UP TO AND INCLUDING THEIR LIFE. |
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| Matatk | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Webmaster
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Thanks for the pics, Ron. Saved those for future reference.
Matthew |
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Posted on: 2010/4/23 11:13
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| bogus | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Grand Imperial Pooh-Bah
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how much were they asking for that rolling chassis?
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Posted on: 2010/4/24 2:58
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The single biggest problem with communication is the illusion that it has taken place. - George Bernard Shaw Education is the best tool to overcome irrational fear. - me |
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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Aight!!
I cut off about 1/2" in width and about 3" in length.... Worked like a charm. Once I got the rear started..the front slide right in without issue at all. |
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Posted on: 2010/5/6 4:15
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| Matatk | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Webmaster
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Quote:
You cut it off or ground it down? Pics? |
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Posted on: 2010/5/6 12:47
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2002 EBM convertible, Magnusson supercharger, cam, headers, etc. 1989 Corvette...RIP |
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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^^I thought about taking pics....but my issue is that, once I get working, I am hell bent on finishing that task.
The camera gets in the way.... The c-bean sort of has a slope next to the two bolt holes...it gradually slopes out to it's full thickness. Rather allow that slope to be there....I cut it off parallel to the Holes.....Just passed the second hole, I cut straight inward.....so the inside of the cut is now a right angle. Once I got the C-beam on the D36.......I just used the rubber hammer to pound it backwards a bit...and then the C-Beam was able to be slid up and mounted onto the tranny. No need to pry the tranny to the side or anything....it was nice for once. |
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Posted on: 2010/5/6 13:39
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| LD85 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Master Guru
 
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Never had a problem with mine, I take it out sometimes when I am really bored,,,, not really,, since the TKO is in,, no issues....
probably just tolerances between the tail shaft machining and the c-beam,, it is a fabricated stamped part after all |
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Posted on: 2010/5/8 0:49
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Well, we get a second chance to take pics as I messed up the installation somehow....
I'll have to take it all back out again and see where I made my mistake. I'll take photos this time....... |
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Posted on: 2010/5/8 5:26
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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here is the mod pic I promised
 Attach file:  C-Beam mod 0011.jpg (39.00 KB) |
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Posted on: 2010/6/14 1:49
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| Jakers | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Guru Newb
 
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Quote:
Will be re-installing mine in a few weeks. Would prefer not to notch it. But I may get desperate!!! |
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Posted on: 2010/6/17 4:43
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1994 Coupe. Too many Mods. Can't stop throwing good money after bad. Just another C4 owner.  
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| Jakers | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Guru Newb
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No wonder these cars twist like a pretzel...
Quote:
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Posted on: 2010/6/17 4:44
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1994 Coupe. Too many Mods. Can't stop throwing good money after bad. Just another C4 owner.
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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Remember, the grinding didn't take off any structural integrity....and it is much easier to put in.
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Posted on: 2010/6/17 5:33
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| JeffK | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Elite Guru
 
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So just out of curiousity.. you might or might not have to get the beam out to drop the driveshaft? I have to do a rear trans seal and u-joints soon.
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Posted on: 2010/6/18 17:25
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| CentralCoaster | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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It depends on how sloppy your floorpan is made. I've worked on some C4s that do allow it to drop, on mine I have to loosen the C-beam and slide it over for the driveshaft to come put. Mine was a Friday car.
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Posted on: 2010/6/18 17:54
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1985 Z51, ZF6 |
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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Bump just for fun.....on a slow Tuesday.
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Posted on: 2012/3/6 16:39
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| j3studio | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Elite Guru
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Quote:
Isn't that true of everything C4?  |
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Posted on: 2012/3/6 19:27
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| jonszr1 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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Quote:
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Posted on: 2012/3/7 17:58
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| jhammons01 | Re: Grinding the C-Beam ( I hate the C-Beam) | ||
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Senior Guru
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^^too late now....just push the tranny to the side and the thing slides down easily....then wriggle it off of the D36....
saved you a phone call. |
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Posted on: 2012/3/7 18:51
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