1970 FJ40 Hand Throttle

[mattressking]

No. What you are mixing up visually is the cable that runs the EGR counter on the firewall. Yes it has a throttle control, but it goes to the PEDAL, aka shorter cable.

In addition, that is a 3/69 - 9/69 Carburetor, same as a 2M carburetor (different from your carburetor), which was used as a stopgap during emissions adjustments from the single barrel D40 to the Two Barrel starting in ~9/69

What I'm trying to make very clear to you is....Land Cruiser did not have a hand throttle cable that runs to the carburetor, period. It only went to pedal. Again for the 3rd time. The photo of the 3 you sent above are Hand Throttles, hence the LENGTH.

The logo on the knob is used for both hand throttle and choke, but they vary on use. Later models use a slightly modified version of that symbol for hand throttle.

 

[Sparkman86]

No. What you are mixing up visually is the cable that runs the EGR counter on the firewall. Yes it has a throttle control, but it goes to the PEDAL, aka shorter cable.

In addition, that is a 3/69 - 9/69 Carburetor, same as a 2M carburetor (different from your carburetor), which was used as a stopgap during emissions adjustments from the single barrel D40 to the Two Barrel starting in ~9/69

What I'm trying to make very clear to you is....Land Cruiser did not have a hand throttle cable that runs to the carburetor, period. It only went to pedal. Again for the 3rd time.

I'm not arguing that this cable hooks up directly to the carb. I have absolutely no idea how or where this cable hooks up. I'm just trying to put this together as close to original as possible.

I'm not familiar with the EGR counter. Are you saying this cable could be for that? My truck had almost all emissions removed or blocked off.

I promise I'm not trying to be a dick. I'm just asking for someone that owns a 1970 model with this two cable configuration to chime in with how theirs is hooked up.

 

[mattressking]

No I'm saying the long cable with the throttle plate logo is choke. Use that as choke actuator on your carburetor. The hand throttle is a short cable that connects to your pedal via the square hole. That's it. You have the correct pedal based on the photo of the pedal you posted however, you do not have the correct hand throttle cable.

Even better.......use Partsouq or Amayama to look at your truck's factory options. You will clearly see the diagrams and part numbers to perform educated analysis, instead of guessing.

 

[EWheeler]

Sure looks like a hand throttle symbol, not a choke, to me.

View attachment 3956873

I have have a 9/69, unfortunately not with original carb but it does have the second pull knob on the right as your photo shows. I can look tonight and see where it may go. My accelerator pedal does not have any accommodations for attaching a cable to it, other than the one that goes through the firewall to the carb....I suspect it is original

 

[EWheeler]

According to Mark, the throttle knob/cable did attach to the carb up util 9/69....

Post 52

Post in thread 'Choke cable variations'

Aug 8, 2017

Thanks. Didn't know the hand throttle cable is so long. The later cable is significantly shorter.

The length of this iteration varied. In 67 and 68 it was attached to the D40 1bbl. 3/69-9/69 was attached to the early 2bbl. Starting 10/69 it would have been attached to the accelerator pedal.

The knobs were the same tho.

• 65swb45

• 

 

[EWheeler]

From Owners Manual:

Post 91

Post in thread 'Choke cable variations'

Jul 25, 2018

Second are the 9/66-7/70 variety, marked by the large unframed choke butterfly inside a recessed head. Bare spiral sheath, solid core.

View attachment 1395691

Well, I am very confused now. The pix that Mark posted is the throttle control cable on my 4/69 and my owners manual shows the same thing. My owners manual also shows the choke as being boxed in. I have an aftermarket choke cable on my 69 and am looking for the correct one. Per the manual and per my 4/69, your pix show the throttle cable and not the choke cable or so it seems. Chime in with thoughts please.

• Martyt

 

[Sparkman86]

I have have a 9/69, unfortunately not with original carb but it does have the second pull knob on the right as your photo shows. I can look tonight and see where it may go. My accelerator pedal does not have any accommodations for attaching a cable to it, other than the one that goes through the firewall to the carb....I suspect it is original

That would be amazing! Maybe it's not an actual hand throttle like later years, but it's definitely not a choke cable. ISince I started this thread have come up with a couple of examples of other trucks with the same setup, but just can't find a picture that really shows how it hooks up.

I'm not sure what this carb and throttle setup is, but this is the clearest example I have been able to find of the two cables coming out of the firewall together toward the carb. This is listed as an original, refurbished 1970.

 

[charliemeyer007]

Interesting. The cables look connected together, I'd bet that the gas pedal will pull through as in override the hand throttle like all the hand throttles I ever used. I still think it needs a lock or the return spring and vibrations will let the hand throttle back off.

The gas pedal pulls the throttle open, for some dash cable to operate inside the cab it would have to push the pedal - as in the knob would be out and you would push it in so it could push out on the pedal - or there is some sort of mechanism .

So if you don't have a PTO winch, what is a hand throttle good for - not a very good cruise control IMHO.

 

[EWheeler]

That would be amazing! Maybe it's not an actual hand throttle like later years, but it's definitely not a choke cable. ISince I started this thread have come up with a couple of examples of other trucks with the same setup, but just can't find a picture that really shows how it hooks up.

I'm not sure what this carb and throttle setup is, but this is the clearest example I have been able to find of the two cables coming out of the firewall together toward the carb. This is listed as an original, refurbished 1970.

I think what is trying to be conveyed, is that your 10/69 and newer carbs will not have a provision for the manual throttle cable attachment. I did previously have a correct carb for the 9/69, but have sold it and never installed onto my 40. The consensus I came to is that the 3/69-9/69 carbs are not worth the effort to rebuild with the more readily available later model F-engine carbs. Mine went to Toyota Matt and then to Mark who rebuilt it for another member.

SOLD Thread 'Filter Housing/Intake & OEM Carb from 7/69'

Mar 7, 2022

I am selling this filter housing/intake & Aisan carb from my 7/69. These parts came loose with the truck as parts as it has a weber on it currently. I elected to go with an early 70's carb & intake on my '69 as I am also rebuilding an OEM carb for my 12/70' FJ40, and figured I would simplify my life doing the same setup for both trucks (both carb & intake identical). Asking price is same I paid for the parts I am using in their place - $300 + the ride from Southern California.

I can text a video of operation of the primary and secondary throttle plates functioning smoothly. I...

• EWheeler
• Replies: 13
• Forum: Classifieds - Engine/Transmission/Transfer Case

 

[EWheeler]

That would be amazing! Maybe it's not an actual hand throttle like later years, but it's definitely not a choke cable. ISince I started this thread have come up with a couple of examples of other trucks with the same setup, but just can't find a picture that really shows how it hooks up.

I'm not sure what this carb and throttle setup is, but this is the clearest example I have been able to find of the two cables coming out of the firewall together toward the carb. This is listed as an original, refurbished 1970.

Here is a photo with a possible example of hand throttle cable routing for the 3/69-9/69 carb....see the cable going through the slot. That same member, @MDH33 posted elsewhere that both the accelerator cable and hand throttle cable are secured with the same bracket/clamp on the '69 model year carbs in question here.

Post in thread 'Throttle plate'

Feb 6, 2022

There's a `69 only carb that was a stop gap 2 barrel that had linkage for the dash mounted hand throttle. The carb itself was not an improvement over the earlier single barrel, and definitely worse than the improved 2 barrel used 69-73.

Here's a bad picture of my 69 before I pulled that carb. You can see the throttle plate that accepted the hand throttle cable to the right.

I've since replaced it with the improved early 70's carb, but there's no obvious way to connect that dash mounted hand throttle. Some...

• MDH33

 

[Sparkman86]

Here is a photo with a possible example of hand throttle cable routing for the 3/69-9/69 carb....see the cable going through the slot. That same member, @MDH33 posted elsewhere that both the accelerator cable and hand throttle cable are secured with the same bracket/clamp on the '69 model year carbs in question here.

https://forum.ih8mud.com/threads/throttle-plate.1276286/#post-14293135

This is starting to make some sense. I'd assumed my carb was original because it's an April 1970 date. It was likely a replacement though. I have the remnants of that dual clamp bracket that was rigged up on my 1970 carb to hold the incorrect accelerator cable.

I think I'm ready to close the book on this. Looks like at one point it had a working hand throttle but after carb replacement, was left unattached. Doesn't look like I'll be able to rig that up on this newer carb. And without a PTO, probably not much practical use anyway.

Thanks all for the help! I've got the answer I was after.

 

[Living in the Past]

So if you don't have a PTO winch, what is a hand throttle good for - not a very good cruise control IMHO.

If you parked outside in a cold climate you would see the advantage of a hand throttle. Warming up the engine in sub zero weather it allows you go inside where it's warm while the engine warms up. Just a choke it fouls and stalls because the mix it too rich as it warms. I've had also put the transmission in gear and the transfer case in neutral to warm of gear oil so thick it's hard to shift the transmission. Been years since I've needed to do that in Northern Arizona haven't seen sub zero weather in years.

 

[Living in the Past]

I wasn't involved in the debate about the symbol on the knob. The one that shows a open damper was lines showing flow is the hand throttle. 70 and 71 models.did not have one and 72 model it mounted to the bottom of the dash and to the accelerator pedal.

Also the carb with a stud out the top is a 69 and 70 return spring is different.

 

[MDH33]

Yeah, that's my pic above. The 3/69-9/69 carb does have the long hand throttle cable going directly to the carb. I'll get a pic of the carb on the bench so you can see the linkage more clearly.

Here's a pic from my 69 manual.

Here's my dash, you can see the choke and throttle knobs

 

[65swb45]

It’s not impossible to connect a hand throttle to a newer carburetor; I have done it. You need a bracket on the primary butterfly shaft for the cable to pass through (and an adjustable barrel stop to sit behind it) and a cable anchor that holds the throttle cable in line with the bracket on the carb. Form follows function.

I don’t want to post a pic of mine; it is only a proof of concept, not a prototype.

 

[MDH33]

OK, here we go, hope this helps. Loosely assembled on my workbench. Throttle cable is black, hand throttle right next to it is gray coil cable, and I put an empty gold coil cable into the choke location.

 

[EWheeler]

On my ‘69, both the choke and the throttle cables come through the center of the firewall along with the coolant temp lead.