Emissions Manual

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Aug 9, 2011
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I have a 1977 FJ-40 emissions manual and am wondering if there is a difference between the 76 and 77 2F engines, and therefore wondering if there is a difference between the 1976 emissions manual and 77 emissions manual?
 
Nothing significanly different between the two engines (maybe nothing), but the carburetor, distributor (ignition too?), and emissions are slightly different. A Haynes manual covers the vacuum hose routing, emissions FSM covers the actual operation and interlocking of all the different components.
 
Subzail that is so funny you responded to my thread because I have been studying your thread on desmogging for the last hour. I myself am doing the opposite, trying to rebuild a stripped emissions system. I have an OCT 1976 FJ40 which I believe is a 77 FJ40. I have a 77 emissions manual but when I looked at the diagrams in the back I realized they seemed a little different than the motor I was looking at. I have a feeling it's just because the emissions system is stripped. It is a 2F fed engine but I can't find the serial number to make sure it's a 77 (I looked at the block next to the starter, not there). After studying your thread with the emissions manual I believe I have found the parts which I need. Any help will be greatly appreciated.
 
I have a '76 Calif. emission manual (genuine Toyota) I'm trying to get rid of. PM me for info, if this is what you want.
 
Subzail that is so funny you responded to my thread because I have been studying your thread on desmogging for the last hour. I myself am doing the opposite, trying to rebuild a stripped emissions system. I have an OCT 1976 FJ40 which I believe is a 77 FJ40. I have a 77 emissions manual but when I looked at the diagrams in the back I realized they seemed a little different than the motor I was looking at. I have a feeling it's just because the emissions system is stripped. It is a 2F fed engine but I can't find the serial number to make sure it's a 77 (I looked at the block next to the starter, not there). After studying your thread with the emissions manual I believe I have found the parts which I need. Any help will be greatly appreciated.

To do a proper desmog, you have to know what it is you're taking out! ;p

Actually I'm probably going to go back to putting all that stuff back on, because there are no noticeable improvements in performance (to my butt meter) and I want to be able to sell this if ever needed some day, so having all the parts is the first step. Plus my exhaust is stinky now, which I don't remember it being before.

I have the same build date FJ40, and yes it's a '77. Post up some pictures of your carb and current emissions components; that will give us an idea of how to help. If you're looking at that thread then I think I have scans of the Haynes or FSM posted there that shows the vacuum hose routing.

The serial number should be stamped on the flat, but if it's not it could be a factory replacement engine. If you do a search you'll find more info on that.

Do you happen to have the emissions sticker visible on the hood?
 
I am not desmogging I am having to buy all the emission parts as the 1977 FJ40 I have is stripped of all emission components. Under the hood is a sticker, white with black writing which I found means non-california. I am in California with a Fed Truck, does this matter? "The serial number should be stamped on the flat" (where is the flat?) I am currently putting a parts list together and Specter Off Road is where I am finding prices, expensive! Know any better ideas for parts search?

I will post pictures tomorrow.
 
You'll have to ask the Calif folks what difference it makes having a Fed-smog truck in Calif - but it should only have to meet the Fed standards of the day (as far as the parts you need to add back). I would look on Mud or the LCML mailing list for '77 smog parts. You will go broke buying them from SOR.
 
SteveH I really appreciate the heads up. I believe the 2F engine is a 77 but if not I will keep that in mind. Thank you.
 
If you search around you will find some pictures, or look through the FAQ, or the engine serial number thread that's a sticky at the top of this page. The flat is near the distributor somewhere.

The desmog comment was referring to me having to know what the components did in order to take out the proper ones to do a proper desmog, but like you I think I'm going to take it back. The classifieds here might yield some fruit, and I would try classiccruisers.com, cruiserparts.net, and marksoffroad.net for used parts.
 
On Page 271 in the haynes there is a pretty good diagram of all of your vacuum lines, all depends on your carb. However, I starred at my carb and all of my emissions stuff for almost a half a day on Sunday:bang:. I've looked at thread after thread on where your lines hook up, but I'm stumped as well. Expect that I will be posting asking for help this weekend. On a brighter note, I finally figures out what carb I have after a ton of people weighed in, so there is a win for me.
 
I will be taking pictures of the carburetor tomorrow, any tips on where to look in order to identify the carb I have. Why would there be a different carb on the same year 2F Engine? It seems all carbs would be identical for the same year and same engine.
 
You'll have to ask the Calif folks what difference it makes having a Fed-smog truck in Calif .

It only has to meet the original emissions standards, but they check a lot of stuff like your gas cap.

I will be taking pictures of the carburetor tomorrow, any tips on where to look in order to identify the carb I have.

Look for the date code stamped on the top of the carb: day number, letter for the month, number for the year. Something like 10J7 for 10 Oct 77
 
I'm pretty sure 10 Oct 77 would read 7 J 10 on the date stamp. Since his is an Oct. '76, the carb will probably read 6 J XX or 6 I XX if it's stock.

BTW countyguard, almost every model year during the 70s have a slightly different carb. And 2 barrel carb, designed to fit on an F or 2F, will swap with each other, as far as mounting it to the engine goes. For example, I have a 10/76 FJ40 as well, but it has a 12/78 (8 L 12) carb on it (the PO did it). It works fine, it just has a few extra vacuum connections and an extra electrical connection that I don't use. Eventually I'd like to return it to stock, but until then :steer:
 
Here Are some pictures of my carburetor on a 0ct 1976 built FJ40 for 1977 and an engine serial number of 2F 120142 . I could not find the serial number. If you could point out where it may be on the picture that would be helpful.
IMG_5248.webp
IMG_5257.webp
IMG_5252.webp
 
Right above the sight glass on the top of the air horn there is a boss sticking up. Oval shaped. The date stamp will be there. Wow, your 2F and mine are only 565 units apart (mine's 119577, so it was a little ahead of yours on the assembly line). Cool.
 
Alright work week is done so I'm back for the next couple days. So I saw a 6 and an I on each of the oval jet housings that lie across the sight glass. There was no XX or 10 but there were two numbers on the top side of the jet housings that looked like someone hand carved them in. As far as boss do you mean the copper rigatoni noodle orifices that are sticking out of the top of the air horn? I carb cleaned all over the inner part of the airhorn and sight glass and saw nothing except the numbers on the jet housings 6 and I on each housing. I dont want to un hook any of the linkages to dismount the carb. What do you think?
 
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Wow, thank you that helped out tremendously. The SOR carb looks very similar. I notice my carb has no wiring harness nor does it have those 2 copper candy cane looking pieces hanging off the side of the air horn.
 
Notice in the carb picture how the TP Diaphragm has a hose going directly to the intake manifold. I believe there needs to be a VSV (TP and EvAP) between the tp Diaphragm and intake manifold. Do you concur?
 

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