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Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR

Posted By: bulletpruf

Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/21/10 03:31 PM

Fellas -

A few random questions -

I have an 8# radiator cap on my car now. Looks factory, but 8# sure seems kind of light, and car seems to puke water/AF too easily. Was it 8# originally?

I recently purchased the shop manual for 68 B bodies, but shouldn't I also be able to find a chassis/assembly manual? Didn't see any on eBay. Anyone know where these can be found?

I purchased a repro engine ground strap (engine to firewall, I presume) from Mancini, but the car did not have one, so I'm unsure as to routing. Any clues on routing it correctly?

Thanks in advance for any info.

Scott
Posted By: topside

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/21/10 03:47 PM

My 68 Hemi RR is about 65 miles away at the moment, so I'm just gonna take a few shots from memory:
8# is low, thought they were more like 15#. I don't recall for certain what's on mine but it's the OEM reproduction.
Shop manual has the body info; no separate factory manual (as in GM cars) that I know of.
Ground strap runs from rt cylinder head to firewall, uses same fastener @ firewall as the other firewall items. IIRC, some repro straps are incorrect length but otherwise appear OK.
Posted By: gtx6970

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/21/10 03:48 PM

I believe 16lb is correct

1968 service manuals are all in 1 book

firewall grnd is pass side rear intake bolt to firewall near the voltage regulator,
in the hole to the left of the regulator in this pic

Attached picture 6047476-DSC00335.JPG
Posted By: bulletpruf

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/21/10 04:53 PM

Thanks, fellas. Much appreciated.

Scott
Posted By: ademon

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/21/10 05:42 PM

pic

Attached picture 6047660-68RR3834-speed(78).jpg
Posted By: bulletpruf

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 11:16 AM

Quote:

pic



I looked at the engine last night and did see that there was a hole where the ground strap connects to the firewall. I think the choke cable is running through there now, but I can fix that.

My question is what type of fastener is used on the ground strap connection at the firewall? I can't tell from the picture. I figured it would be a stud and a nut, but that's not what it looks like to me.

Thanks in advance for any info.

Scott
Posted By: gtx6970

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 12:32 PM

Air grabber cable(or choke cable in your case) comes thru where the rubber grommet is in my picture above.Firewall ground hole is above and to the left of the regulator

Firewall ground fasteners TYPICALLY uses a fastener similar to this , but slightly shorter overall.As long as theres nothing it can hit inside, I guess it can be used as is.
it's a 1/4-20 thread pitch
Posted By: hemi68charger

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 02:07 PM

The ground strap on '68 b-bodies typcially where further down the firewall near the heater hose inlet. You can vaguely see the attach bolt/screw just below the PVC hose under the ballast resistor.

Now, the later production '68 models could have had the ground strap closer to the ballast resistor which is the case for the '69 model year.



Attached picture 6049150-68HemiCharger.jpg
Posted By: gtx6970

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 02:51 PM

Quote:

The ground strap on '68 b-bodies typcially where further down the firewall near the heater hose inlet.



Well, I've never noticed that one before. But I think you may be right

1968 Hemi Runner
Posted By: hemi68charger

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 03:58 PM

Quote:

Quote:

The ground strap on '68 b-bodies typcially where further down the firewall near the heater hose inlet.



Well, I've never noticed that one before. But I think you may be right

1968 Hemi Runner




Bill,, you're going to make me blush...
Posted By: bulletpruf

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/22/10 04:53 PM

Fellas -

Really appreciate the pics and details. My car was built 25 September 1967, so I'll be looking for the ground strap mounting hole that's pictured. Don't recall seeing anything there, but that's not where I was looking last night.

Thanks again,

Scott
Posted By: bulletpruf

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 12:39 AM

Quote:

Fellas -

Really appreciate the pics and details. My car was built 25 September 1967, so I'll be looking for the ground strap mounting hole that's pictured. Don't recall seeing anything there, but that's not where I was looking last night.

Thanks again,

Scott



Yep, there's a hole there - same place pictured above by Hemi68Charger and GTX6970.

I suppose I can get the correct fastener at Year One or some similar vendor?

Thanks,

Scott
Posted By: hemi68charger

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 12:44 AM

Quote:

Quote:

Fellas -

Really appreciate the pics and details. My car was built 25 September 1967, so I'll be looking for the ground strap mounting hole that's pictured. Don't recall seeing anything there, but that's not where I was looking last night.

Thanks again,

Scott



Yep, there's a hole there - same place pictured above by Hemi68Charger and GTX6970.

I suppose I can get the correct fastener at Year One or some similar vendor?

Thanks,

Scott



Or from Bill himself (GTX6970).. He's got a nice website and sells quality stuff. I've bought many things from him....
Posted By: 6bblgt

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 12:50 AM

I'm sure Bill has those screws ......

Here's my brother's 9/27/67 '68 GTX (St. Louis assembled). I see the dimple where the HEMI cars above are shown, but this one is grounded 2" away.
I'll have to take a closer look next time I'm in Ohio.

Attached picture 6050096-1968gtxGROUND.JPG
Posted By: 6bblgt

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 01:03 AM

I found an older picture of it with the firewall bare. I see 2 holes, guess I picked the wrong one.

Attached picture 6050117-GTXfirewall.jpg
Posted By: 6bblgt

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 01:23 AM

Here's a spring '68 (St. Louis assembled) 383 2bbl with A/C Sport Satellite I had. It appears to also be above the last set of wire tabs on the firewall.

Attached picture 6050144-img239.jpg
Posted By: bulletpruf

Re: Radiator Cap, Chassis Manual, Ground Strap - 68 Hemi RR - 06/23/10 04:55 PM

Quote:

Quote:

Quote:

Fellas -

Really appreciate the pics and details. My car was built 25 September 1967, so I'll be looking for the ground strap mounting hole that's pictured. Don't recall seeing anything there, but that's not where I was looking last night.

Thanks again,

Scott



Yep, there's a hole there - same place pictured above by Hemi68Charger and GTX6970.

I suppose I can get the correct fastener at Year One or some similar vendor?

Thanks,

Scott



Or from Bill himself (GTX6970).. He's got a nice website and sells quality stuff. I've bought many things from him....



You're right about Bill's site - just e mailed him with an order of stuff for my car.

Thanks,

Scott
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