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pic needed of lc gtr carby linkage

Started by _gtr161s_ , Sep 02 2008 08:13 PM

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#1 _gtr161s_

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Posted 02 September 2008 - 08:13 PM

Im looking a pic of the carby linkage on an lc gtr from the firewall pivot bracket to the carb.

Mine may have been fabricated so i need to confirm then overall length and whether its straight or has a bend

Cheers

#2 Bazza

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Posted 02 September 2008 - 08:31 PM

Hi

Does this help"

Bazza

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#3 dpz

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Posted 02 September 2008 - 09:19 PM

Here you go mate. This one has a bend. I can dig up more if you need.

Dellas


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#4 _gtr161s_

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Posted 03 September 2008 - 08:23 AM

dpz, if you hanve more pics that would be excellent including a side shot of the carb to firewall one

Is yours factory or aftermarket?

My firewall linkage has distinct bends, first looks like to clear the booster and the other is to end up sitting level onto firewall pivot bracket.

Edited by gtr161s, 03 September 2008 - 08:25 AM.

#5 _gtr161s_

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Posted 03 September 2008 - 08:27 AM

Also noticed a dealer pic I have shows the carby return spring hooked up to battery tray whereas the parts book shows a bracket...any thoughts??

#6 dpz

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Posted 03 September 2008 - 08:57 AM

My return spring also goes to the battery tray. It is a brisbane built car.
Im sure I heard a story about the change to battery -- but cant remember if it was a date/year thing or where it was built.

The pic isn't of my car. Just one I found on file. I keep pics of everything.
The one on my LC GTR was bent to accommodate a 350 holley so mine needs fixing also. I am most likely going to buy
one new.

Here is a set available new from Repros 'R' us in Melbourne. $50 for both.

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These are the only other pics that may help

Regards Dellas

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#7 _gtr2600S_

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Posted 03 September 2008 - 09:02 AM

Also noticed a dealer pic I have shows the carby return spring hooked up to battery tray whereas the parts book shows a bracket...any thoughts??

Yep, mine (1970 build) has the battery tray 'anchored' return spring, and the bend in the control rod.
I recall seeing a factory photo of a return spring anchored to a 'you beaut' bracket. (from memory, Bazza had the pic).
He seems to think that there may've been a variation in later models.

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#8 Bazza

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Posted 03 September 2008 - 12:37 PM

Hi

There are a couple of original pics. I think this setup was dispensed with pretty early in the piece.

Bazza


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#9 _gtr161s_

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Posted 03 September 2008 - 07:17 PM

Ok here's a pic of my throttle linkage

dpz - the pic of the 2600s engine is from my car, the linkage in these pics are from the shot.

As you can see the linkage has 4 bends, the first clears the booster bracket and the remaining 2 step it down to end up sitting parallel onto pivot bracket.

I have spoken to another one owner lc gtr owner who says his has 2 bends closer to the pivot brackets but did say that over the years as it wore the linkage would foul over booster bracket...so his thinking is that they may have altered this rod to clear booster bracket along with heater box.

What is noticeable about my set up is that the main linkage rod runs parallel along firewall whereas other are running at an angle down the pivot bracket

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Edited by gtr161s, 03 September 2008 - 07:26 PM.

#10 dpz

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Posted 03 September 2008 - 09:51 PM

Hi gtr161s

and here are some pics of my butchered one. The car is currently being stripped.
Not sure if mine is worth the trouble repairing.
Are you going to straighten yours out? It seems that the only factory bends are the ones nearer the carb.


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regards dellas

#11 _gtr161s_

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Posted 04 September 2008 - 08:16 AM

Hi dpz

the way is bent its looks very factory (if i can use that statement) because it clears the brake booster sits nicely along firewall tucks under heater box then meets the pivot bracket perfectly level

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#12 dpz

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Posted 15 September 2008 - 08:18 PM

Hi Kev

I just found these on file....

You are definitely right and I stand corrected. I thought there was only 1 design for these.
At a glance my bent one may have started its life looking like yours. I will have to inspect this closer.
Hope these help.

Regards Dellas

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#13 _gtr161s_

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Posted 16 September 2008 - 08:20 PM

Thanks Dallas - there the pics i was hoping to turn up

Your first pic is identical to my linkage. I always suspected that GMH made a change to that firewall shaft because the earlier one appear to foul over booster and have clearance issues under heater box.

Cheers, Kev

#14 _NOGEN 3_

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Posted 16 December 2008 - 03:40 PM

Hey, does anyone know the dimensions of the pivot, from pivot point to acc swingarm and pivot to carby links at all?(Or can you get them from somewhere??)

#15 _NOGEN 3_

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Posted 11 January 2009 - 09:58 PM

Anyone at all? I'm planning on getting a pivot bent up to fit to the firewall.....

Edited by NOGEN 3, 11 January 2009 - 10:01 PM.

#16 _NOGEN 3_

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Posted 11 January 2009 - 10:03 PM

11-13....

Hi

Does this help"

Bazza

Posted Image


Edited by NOGEN 3, 11 January 2009 - 10:04 PM.

#17 dpz

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Posted 13 January 2009 - 07:35 AM

Hey, does anyone know the dimensions of the pivot, from pivot point to acc swingarm and pivot to carby links at all?(Or can you get them from somewhere??)



Hi mate...

As posted above

Here is a set available new from Repros 'R' us in Melbourne. $50 for both.

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http://www.reprosrus...category1_1.htm

Regards

Dellas

#18 _NOGEN 3_

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Posted 13 January 2009 - 09:15 AM

Hey Dellas, Yep- Getting the rods ASAP, but I need the pivot point dimensions to make one (and the bracket thats welded to the firewall) as they don't sell that part...

#19 meanmachine72

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Posted 13 January 2009 - 10:09 AM

is this what your after???
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this is on a 74 4 door
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#20 LC69GTR

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Posted 13 January 2009 - 10:24 AM

I think this one
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#21 dpz

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Posted 13 January 2009 - 03:48 PM

I think this one
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I cant find the pic.... but someone was selling these on ebay a while back. The triangular bracket anyway.

If you are stuck PM me and I'll measure up mine for you.

#22 _NOGEN 3_

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Posted 13 January 2009 - 04:25 PM

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Yep, thats the part. :) The shopping cart section of 'repros' is down at the moment but I emailed them to arrange the rods anyways and yeah, if I know the dimensions of the firewall bracket/pivot and position from the single throat carb firewall bracket, I could get a mech engineer to make it up and I'll get a welder and mig the bracket on...

Edited by NOGEN 3, 13 January 2009 - 04:29 PM.

#23 _NOGEN 3_

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Posted 20 March 2009 - 10:02 PM

Would bending the stock firewall bracket straight work anyone? The linkages are on the way and the pivot came today....

#24 dpz

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Posted 21 March 2009 - 06:54 AM

Would bending the stock firewall bracket straight work anyone? The linkages are on the way and the pivot came today....



bending the stock one is a no go. the gtr one sits to the right of it. Rough measurements in my dark garage and with a ruler....

..for the triangle - about 80mm across the bottom and 80 mm to top center. So the overall size is bigger than the stock bracket you are talking about.
If you bend one up and have the firewall and carby rods it should be easy to work out an exact spot for the triangular pivot.
In mine it is about 4 - 5 mm to the right of the stock unit.
There is just enough room between it and the firewall lip above it for the brake line to squeeze through.

The upright rod sits about 35mm high.

Does any of this make sense?

#25 dpz

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Posted 21 March 2009 - 06:58 AM

This should explain it

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