FJ60 Smog touble

[Fast Eddy]

I thought stock but am trying to see if work was done to it. Are they changeable? This cruiser was bought new in 84 and my parents finally gave it to me in 2015. They used a local mechanic for repairs. Not too sure about him though. Limits are HC 4 and CO 40. Last run HC@6.5 and CO@200.

Yea, they come out pretty easily without removing the carb. You have to pull the primary jet and see what is stamped on it.

I'm not an expert on the diffferent carb bodies, but according to SOR, you may have a 1.47 primary jet. It would be interesting to drop it down a bit and retest to see what happens. 1.40? 1.38? Ask @FJ40Jim or @pinhead. There are lots of sizes available. You can get Mikuni jets from a motorcycle shop too, supposedly. The one I finally got to pass I drilled out myself wiwth a hand drill. 1.24 is the stock jet for CA. I run a 1.29 now. It's noticeably lean when driving. I could bump it up a bit and just put in the smaller one when I go in for the test. 1.36 is the Federal spec.

Page 042 Land Cruiser Carburetors, Parts, Kits & Gaskets <- Click the "jets" tab.

Running some E85 will also lower your HC a bit. Don't leave it in your tank for long. Put in a couple gallons for the test and then fill up with gasoline right after the test.

 

[Chris Rapp]

tryimg to hit everything before I go back. The last time it passed was 2010. We've had it since 2014.

 

[FJ40Jim]

The main jets are all 147/200 for 81-87 USA 2F. There is no distinct California spec calibration. If it's way too rich above idle, the power piston or power valve is likely stuck in the "power valve open" position. A good rebuild will cure that.

 

[Chris Rapp]

Fixed the exhaust leak and checked all the components. All working according to that wonderful book. Thanks used it cover to cover. Opened up the spark gap a little. Not sure if carbs off that much. Ran in high altitude with the HAC vacuum advance disconnected and she doesn't really cruise well. Kinda surges like she's running lean like it's suppose to. Read that running a retarded timing is better for smog. Any truth to that?

 

[DFXR]

Did the smog tech on the recent failed tests call you out on any of the missing and/or unhooked vac lines? Reason I ask - if he didn't, meaning he only cares about what's happening at the end of the pipe, then you can probably get away with the work-around that Output Shaft linked to earlier in this thread.

Pumping air directly to the cat will dilute your exhaust, hopefully enough to pass the sniffer. Then you can keep driving it while you figure out what exactly is going on with your carb and emissions system.

If your air bypass system still works, and the check valve just ahead of the exhaust is clear, it's as simple as disconnecting one vac line.

 

[Chris Rapp]

Did the smog tech on the recent failed tests call you out on any of the missing and/or unhooked vac lines? Reason I ask - if he didn't, meaning he only cares about what's happening at the end of the pipe, then you can probably get away with the work-around that Output Shaft linked to earlier in this thread.

Pumping air directly to the cat will dilute your exhaust, hopefully enough to pass the sniffer. Then you can keep driving it while you figure out what exactly is going on with your carb and emissions system.

If your air bypass system still works, and the check valve just ahead of the exhaust is clear, it's as simple as disconnecting one vac line.

I did this bypass the last time through. AZ equipment check only includes, is the charcoal canister there and hooked up, smog pump there and hooked up, then sniff test. Vacuum lines don't matter. Also because these are retests, the internal inspection has already passed. I will do the air pump bypass and pulling the high altitude carb lines to lean it out and retarded timing to about 3 BTDC.

 

[Chris Rapp]

Failed again. Guess its time to send her to the shop and hope they have a clue. Got worse this time. Whats left??? Compression and carb.

 

[Chris Rapp]

Reliable source for a carb kit?

 

[FJ40Jim]

Toyota dealer?

 

[Output Shaft]

Chris, if I were you and you could spare some down time, I'd send the carb to Fj40Jim to have him make it well again. I've had Jim rebuild my carb, and I've cleaned it out myself once. There's 85 ways to mess up the carb doing it yourself, especially if you've never done it before and don't really know what you're doing (which nobody does until they've worked on several of them). Although I was successful doing it on my own, it's kinda hairball, and the next time around, it's going back to Jim.

 

[Chris Rapp]

Chris, if I were you and you could spare some down time, I'd send the carb to Fj40Jim to have him make it well again. I've had Jim rebuild my carb, and I've cleaned it out myself once. There's 85 ways to mess up the carb doing it yourself, especially if you've never done it before and don't really know what you're doing (which nobody does until they've worked on several of them). Although I was successful doing it on my own, it's kinda hairball, and the next time around, it's going back to Jim.

How do I contact him?

 

[Chris Rapp]

So I got a aftermarket FJ40/FJ60 F2 carburetor that had a lot less vacuum ports and made it work so I could rebuild the original one and it passed easy.

 

[F16FJ60]

Smog question. While replacing my worn out smog pump, while disconnecting hose from air rail to air switch valve there was a bunch of oil in that hose. Should oil be getting in there? And if not what is causing it? Bad valve seals?
The struggle is real trying to get my 87 to pass Colorado emmisions. But a big thanks to Mark's off-road for the carb rebuild.

 

[Spike Strip]

You could be getting blow-back through a bad check valve that is on the end of the air rail where that hose connects, but generally, they are oily after 30+ years. I had one where the Power steering had leaked onto and soaked the air pump and some of that had seeped into the pump and pushed through the system.

@65swb45