1970 Assy. Manual Help - Front End Bumper Support

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Jun 22, 2009 | 01:27 PM
  #1  
I've been working on replacing my headlamp assemblies and I misplaced the pages showing the radiator to bumper support rod and the headlamp relay mounting plate. Does anybody have access to one?

I took my pages out to work on the car a while ago and never put them back in the binder.

The 1970 model has an angled steel plate on which the two headlamp relay valves are mounted. I need to orient this plate to the headlamp support cross member which I just glued back into place. I'm also having a heck of a time determining where the front J hooks should be placed. Oh...and I need help determining the correct mounting orientation of the horns.

I need lots of help. Thanks in advance.

Matt
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Jun 23, 2009 | 02:06 AM
  #2  
Are these any help? I'm not quite sure what you're looking for, and then what section of the manual they'd be in...

Link1
Link2
Link3
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Jun 23, 2009 | 12:04 PM
  #3  
Quote: Are these any help? I'm not quite sure what you're looking for, and then what section of the manual they'd be in...

Link1
Link2
Link3
Thanks Jerry.

These are close to what I need. What I was looking for was the radiator support rod pic and the plate which holds the relay (in fig 2). This diagram shows what looks like a newer Vette with a radiator cap. The 70 has the cap on the expansion tank. Fig 2 also shows one relay instead of the two attached to the angled metal plate which mounts on the "crossmember" below the nose.
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Jun 23, 2009 | 04:55 PM
  #4  
The support rod attaches from the bottom of the radiator support to the nose brace. The headlight relay bracket is a one year only thing IIRC. I've never seen one for sale used, other years the relays were attached directly to the support bar.

Not sure what you mean by the "J hooks". I'll try to remember to throw the assembly manual in the car to scan the pages tomorrow at work.

Jim


Quote: I've been working on replacing my headlamp assemblies and I misplaced the pages showing the radiator to bumper support rod and the headlamp relay mounting plate. Does anybody have access to one?

I took my pages out to work on the car a while ago and never put them back in the binder.

The 1970 model has an angled steel plate on which the two headlamp relay valves are mounted. I need to orient this plate to the headlamp support cross member which I just glued back into place. I'm also having a heck of a time determining where the front J hooks should be placed. Oh...and I need help determining the correct mounting orientation of the horns.

I need lots of help. Thanks in advance.

Matt
Reply 0
Jun 23, 2009 | 05:04 PM
  #5  
Quote: The support rod attaches from the bottom of the radiator support to the nose brace. The headlight relay bracket is a one year only thing IIRC. I've never seen one for sale used, other years the relays were attached directly to the support bar.

Not sure what you mean by the "J hooks". I'll try to remember to throw the assembly manual in the car to scan the pages tomorrow at work.

Jim
Jim

Thanks.

The headlight relay orientation on the metal plate is what I'm looking for. From what I remember, this should be found on the same diagram as the support rod.

I took some pictures of 1970's a while back. I concentrated on the underside of the nose.

The J hooks hold the wiring harness and vacuum hoses.
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Jun 23, 2009 | 07:46 PM
  #6  
Quote: Jim

Thanks.

The headlight relay orientation on the metal plate is what I'm looking for. From what I remember, this should be found on the same diagram as the support rod.

I took some pictures of 1970's a while back. I concentrated on the underside of the nose.

The J hooks hold the wiring harness and vacuum hoses.
On the skirts or on the headlight support brace?

Jim
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Jun 23, 2009 | 08:01 PM
  #7  
This is from an untouched original 70 front clip I have. That plates mounts to the header bar with 3 pan head screws. BTW any repop header bar does not have the 3 thread provisions for that plate. They all have 4 thread provisions since, as someone stated, the relays mount to the header directly other than 70. (2 screws for each)





Here's the manual pics. There is a plastic push in fastener in the wire harness that attaches in the center between the horns. Not shown in manual


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Jun 23, 2009 | 11:02 PM
  #8  
70454, I just took my center support rod out to straighten it a couple of weeks ago and went all through my '72 shop manual and A.I.M. but never found a page with that rod on it.

It was a b---h to put back in. That bolt that goes into the nose support is halfway obscurred by the bumper. And there's only about the width of an index finger to maneuver it into place. It took one finger on each side of the bolt to get it aligned and started. Only about 2 hours work.

If your bumper isn't installed yet you're in good shape.

Good luck.

cc
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Jun 24, 2009 | 12:53 AM
  #9  
Quote: Thanks Jerry.

These are close to what I need. What I was looking for was the radiator support rod pic and the plate which holds the relay (in fig 2). This diagram shows what looks like a newer Vette with a radiator cap. The 70 has the cap on the expansion tank. Fig 2 also shows one relay instead of the two attached to the angled metal plate which mounts on the "crossmember" below the nose.
Those pix are from the '70 assembly manual (which also covered '69). I'll try and get a couple of pictures from my stock front end.
Reply 0
Jun 24, 2009 | 11:45 AM
  #10  
Thanks Guys. You're all awesome!

Dennis.

It looks like you nailed it. The 70 Vette has some odd stuff about it, including the mounting plate to the header bar as shown in your second Mid-America diagram (BTW...this is the one missing from my manual).
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Jun 24, 2009 | 11:48 AM
  #11  
Quote: Those pix are from the '70 assembly manual (which also covered '69). I'll try and get a couple of pictures from my stock front end.
Thanks Z. Sometimes pics help in assembly more than the manuals. I'm trying to visualise the hose routing and placement of the actuators.

Also...while I'm on the subject. It is noted that the 1970 hose routing to the actuators have some glitches such as a green hose to a yellow color patch on the actuator on the right side. Can anybody verify the headlamp actuator hose order for the green, red and yellow hoses? My shop manual shows these in black and white and the pictures are hand drawn (1971 shop manual - since 70 was a strike year)

Thanks
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Jun 26, 2009 | 01:35 AM
  #12  
I think Dennis got most of it. That MA manual is really good. Mine looks to be a combination of '69 and '70 (due to the low '70 production numbers). The hose routing in that sketch aren't what they are like at all!

I held my camera down behind the horns and thought I'd get a good bunch of pix, but they didn't come out too well. I'll do it again from a little different perspective so you can see the valves and the horns. The hoses appear to be run just like in Dennis' pictures, although the colored stripes have long since evaporated or worn off. Here they are so far...

Passenger side

Driver's Side

Center

From the front
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Jun 26, 2009 | 09:58 AM
  #13  
Glad the guys came through. Forgot the book Wed :o & have been home sick with the flu since.

Jim
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Jun 26, 2009 | 12:44 PM
  #14  
My 70 has the 4 mounting holes for the direct mounting of the relays. I'd like to mount the steel angled plate this weekend. I'm gonna try to use the existing holes in the header bar but I think this is whats causing my dilema. Once the plate is overlaid on the holes in the header bar, it puts it out of position......the hoses would be directly on the bumper support bar(s) which support the nose. Hmmm...
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Jun 28, 2009 | 05:03 AM
  #15  
Luckily, I was able to mount the steel plate to the header bar using one of the 4 holes used to directly mount the relays. I may simply tap another hole and insert one more screw to hold it tight. The hoses are back on and the headlamps work. I will be spending the day shoring up the vacuum lines and wiring and inserting the bulbs and retainers.
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Jun 28, 2009 | 08:53 AM
  #16  
Quote: Luckily, I was able to mount the steel plate to the header bar using one of the 4 holes used to directly mount the relays. I may simply tap another hole and insert one more screw to hold it tight. The hoses are back on and the headlamps work. I will be spending the day shoring up the vacuum lines and wiring and inserting the bulbs and retainers.
I was in the same situation when I replaced my header bar. Since I still had the originalI was able to template where the 3 holes would be on the 4 hole bar. I believe I was able to use 2 of the 4 holes and added the one I needed to install the mounting plate.

I bought a threaded rivet tool. Drilled the hole in the bar inserted the threaded rivet, and was even able to use the original pan head screw for a perfect match to the original
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Jun 28, 2009 | 12:54 PM
  #17  
Quote: I was in the same situation when I replaced my header bar. Since I still had the originalI was able to template where the 3 holes would be on the 4 hole bar. I believe I was able to use 2 of the 4 holes and added the one I needed to install the mounting plate.

I bought a threaded rivet tool. Drilled the hole in the bar inserted the threaded rivet, and was even able to use the original pan head screw for a perfect match to the original
Good move. My neighbor has a much better set of tools. I'll have him over to check it out.

I've moved on to the headlamps and headlamp retainers. They're marked A, B, C, & D. I took them off to repaint and I'm working on the puzzle of putting them back in the right place so the bulbs are seated properly. Progress is good.
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Jun 28, 2009 | 07:22 PM
  #18  
Quote: Good move. My neighbor has a much better set of tools. I'll have him over to check it out.

I've moved on to the headlamps and headlamp retainers. They're marked A, B, C, & D. I took them off to repaint and I'm working on the puzzle of putting them back in the right place so the bulbs are seated properly. Progress is good.
On either Wilcox's or Keens website they're labled. Just go on as if you as if you were buying them Couldn't find the labels in the AIM.

Edit; from Keens website

240028 Headlight Bulb Cup C Outer RH 58-82 Except 64-67 $15.00 1 $15.00
240027 Headlight Bulb Cup A Outer LH 58-82 $15.00 1 $15.00
240026 Headlight Bulb Cup B Inner RH 58-82 $15.00 1 $15.00
240025 Headlight Bulb Cup D Inner LH 58-82 Except 64-67

Jim
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Jun 30, 2009 | 10:51 AM
  #19  
Quote: On either Wilcox's or Keens website they're labled. Just go on as if you as if you were buying them Couldn't find the labels in the AIM.

Edit; from Keens website

240028 Headlight Bulb Cup C Outer RH 58-82 Except 64-67 $15.00 1 $15.00
240027 Headlight Bulb Cup A Outer LH 58-82 $15.00 1 $15.00
240026 Headlight Bulb Cup B Inner RH 58-82 $15.00 1 $15.00
240025 Headlight Bulb Cup D Inner LH 58-82 Except 64-67

Jim
Thanks.

That's how they came out. The bulbs have "male" nubs which fall into place on the notches on the bulb cups. The easy way to mount these is to get the high beam / low beam orientation set before pluging any bulb cups or bulbs. These can be laid out in front of the car and installed one by one.

Great find.

Thanks
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Jun 30, 2009 | 11:08 AM
  #20  
I'm working on the front end reassembly now.

I was wondering about the wiring routing in regards to the headlamp bulb plugs. How do they route from the harness down to the lights? Do they sneak through or around the headlamp "group" frame.

The above diagram shows the routing for the turn signal bulb and side marker bulb. This is a great photo but the "wrapping" of the wires around the J-Hook is quite uncomfortable.
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