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  #51  
Old 10-03-2011, 05:24 PM
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Rezarf Rezarf is offline
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Add a dash a purple and you're close Matt

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My rig... "Maude"
1976 FJ40 with some stuff and some leaks.

2001 Sequoia Limited with heated seats

My camping trailer build up thread.

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  #52  
Old 10-04-2011, 08:22 PM
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Alright Matt, Tore in to my linkage, and set up...My bracket at the carb was openned up, and getting the linkage to not operate quite right. Going to hit the bracket, and the linkage with the welder, and get things tightenned up. Doing the paperclip thing, I only get about 1/4 inch of travel. How do I manually create vacuum to it?

Every hose I've sucked on gets me nowhere...I feel like Linda Lovelace....
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  #53  
Old 10-04-2011, 09:28 PM
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subzali subzali is offline
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The vacuum comes from inside the secondary diaphragm housing. If you take the housing off the carb you'll see the hole. It leads to the area right at the venturi, so there is no vacuum unless there is air running past the carb venturi. If the paperclip is traveling at all then you're in good shape, as far as I can tell. Will you have your 40 tomorrow night?
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1977 FJ40 2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering, soon to lose the Sanden OBA to go back to factory emissions
1996 FZJ80 1FZ-FE factory lockers + Safari Turbo , CDL switch, cup holder, AATLAS1X leather, heated seats and JDM switches
2000 Tundra Limited TRD 2UZ-FE SOLD
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  #54  
Old 10-05-2011, 10:32 AM
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kurtnkegger kurtnkegger is offline
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Planning on bringing it. Since my bracket was openned up from wear, I rounded the hole, and put a brass bushing in there for the pivot point. I filled the worn away groove in the shaft with a little weld...smoothed, and made a couple of aluminum washers for spacers to keep everything in place.

It should only take a few minutes to install...and then I'll have to readjust the throttle linkage...only after lengthening it for enough travel to move the gate did I discover the worn out carb bracket.
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  #55  
Old 10-05-2011, 10:39 AM
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subzali subzali is offline
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Looks like you have it pretty well in hand Kurt! Yours was definitely not as worn as mine though!
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Matt Miller
"Stay the Trail," "Tread Lightly," and "Leave No Trace" ethics
TLCA# 13684
Rising Sun Bio
1977 FJ40 2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering, soon to lose the Sanden OBA to go back to factory emissions
1996 FZJ80 1FZ-FE factory lockers + Safari Turbo , CDL switch, cup holder, AATLAS1X leather, heated seats and JDM switches
2000 Tundra Limited TRD 2UZ-FE SOLD
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  #56  
Old 10-06-2011, 03:29 PM
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Rzeppa Rzeppa is offline
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What is this throttle positioner diaphragm business? I know FI needs to know the TP, but this sounds like something else. Does it have any function at idle, or is it only for throttle positions above idle? I need to look this up when I get home and see if it might have something to do with my 60 stall at idle problem...
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  #57  
Old 10-06-2011, 03:48 PM
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Quote:
Originally Posted by kurtnkegger View Post
Every hose I've sucked on gets me nowhere...I feel like Linda Lovelace....
- I'm not sure Radar is old enough to get the reference
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'97 LX450 - aka "The Whale"
'97 FZJ80 Antique Sage AE #267, stock
12/74 FJ40, 2F, SM420, 4" Lift, ARBs, 33" MTRs

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"...anything else i can do for you guys, how about i wash your car or mow your lawn while you figure out your firewall system? I am now boarderline insane/unibomber." Kipper

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  #58  
Old 10-06-2011, 03:51 PM
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subzali subzali is offline
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Quote:
Originally Posted by Rzeppa View Post
What is this throttle positioner diaphragm business? I know FI needs to know the TP, but this sounds like something else. Does it have any function at idle, or is it only for throttle positions above idle? I need to look this up when I get home and see if it might have something to do with my 60 stall at idle problem...
The TP diaphragm holds the throttle plate slightly open when decelerating at high speeds, to prevent an overly rich mixture. I think it also has a function as a choke breaker on some models.

Quote:
Originally Posted by corsair23 View Post
- I'm not sure Radar is old enough to get the reference
Totally over my head, but I have a feeling it's something I shouldn't look up on my work computer
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Matt Miller
"Stay the Trail," "Tread Lightly," and "Leave No Trace" ethics
TLCA# 13684
Rising Sun Bio
1977 FJ40 2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering, soon to lose the Sanden OBA to go back to factory emissions
1996 FZJ80 1FZ-FE factory lockers + Safari Turbo , CDL switch, cup holder, AATLAS1X leather, heated seats and JDM switches
2000 Tundra Limited TRD 2UZ-FE SOLD
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  #59  
Old 10-07-2011, 10:33 AM
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Rzeppa Rzeppa is offline
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I checked my manual and there is no reference to a throttle positioner diaphragm. On my 60 I have 3 vacuum diaphragm actuators on my carb: secondary, AC idle kick up, and choke breaker. The choke breaker just opens the choke a little bit when it is fully closed; once there is vacuum from the engine running it allows a little bit of air to get past the choke butterfly. I don't think it does anything to the throttle, when the choke is closed, the throttle is already partially open from the fast idle.
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  #60  
Old 10-07-2011, 10:55 AM
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subzali subzali is offline
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Jeff, it looks like your 60 carb is a little different than my '77 FJ40 carb:
FJ60 carb:


'77 FJ40 carb:


On my carb, the choke breaker diaphragm also controls the fast idle screw, or throttle positioner. This doesn't seem to be the case with yours.

By the way, this is different than a throttle positioning sensor. It's not detecting throttle position in any way, but it's rather holding the throttle plates open at certain times.
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Matt Miller
"Stay the Trail," "Tread Lightly," and "Leave No Trace" ethics
TLCA# 13684
Rising Sun Bio
1977 FJ40 2F "Brahma" + Lockright, tach, Warn 8274, FJ60 Power Steering, soon to lose the Sanden OBA to go back to factory emissions
1996 FZJ80 1FZ-FE factory lockers + Safari Turbo , CDL switch, cup holder, AATLAS1X leather, heated seats and JDM switches
2000 Tundra Limited TRD 2UZ-FE SOLD
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