Build 78 Mustard Yellow FJ40 #Tiger40

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The entire time I owned my 40 Norman, she never had her timing mark window. Didn’t really care. One day I was laying under there just randomly tightening nuts and bolts and reached up on top of the frame rail and low and behold, lil guy is literally just laying up there.

I probably drove it 1,000 miles at that point. Bugger is just riding along.
 
RevISK said:
The entire time I owned my 40 Norman, she never had her timing mark window. Didn’t really care. One day I was laying under there just randomly tightening nuts and bolts and reached up on top of the frame rail and low and behold, lil guy is literally just laying up there.

I probably drove it 1,000 miles at that point. Bugger is just riding along.
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That's some good luck right there haha
 
Back in business

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Welcome to todays episode of carburetor problems. Test drive went good until I took the exit to get off the freeway and the sputtering stumbling began. I put the choke on and got it home.

Mind boggled, I couldn’t understand what in the world it could be now. Decided the lower end of the carb was not the issue and it had to be in the upper part. Took it partially apart and started spraying carb cleaner in every port. Took out the venturis and found nothing. Sprayed carb cleaner down the Venturi port into the carb bowl and found the smoking gun!

Turns out main jets don’t like scotch brite fur balls lol. Fingers crossed this is the last debacle and I can get back out on the road!

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We passed the paperclip test! 🤘

First driving impressions with everything working properly: It feels like it’s working less to go with traffic, where before it was screaming to do so. The engine note changes to a deeper pitch when the secondary kicks in on an incline. Overall it doesn’t go a faster top speed mph but it has much more useable torque. We are now able to keep up with the flow of traffic on an incline, where before it was dropping down to 45mph. The throttle is still pinned going up an incline, but it feels safer going 65 vs 45 when everyone else is doing 80.

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Found these brass bushings on Amazon and used it to replace the missing bushing on my throttle linkage. I just had to slightly open the inner diameter up with a dremel. Then I ran the bushing over sand paper to thin the neck down so that the washer and clip would fit. Also, lucked out and found a Honda spring that fit the linkage perfectly!


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After finding out how bad I had the carb setup, it was time to do a mini tune up. The spark plugs showed clear signs of carbon fouling from running too rich (idled off the primary jets) and the gap was way too small! I think I installed them right out the box when I first started working on it. The gap out the box is .030 and the book calls for .039.

Next thing was swapping out the fuel filter with another oem unit. There were tons of small pieces of red crud coming out of the old filter when I hit it against the brick. Last thing was getting a new air filter in. The old one got wet from all the blow-by before I installed the catch can setup it has now.

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Noticed coolant coming out of the overflow tank, and found out that the oem cap I ordered doesn’t have the same neck length as the Mishimoto cap. So I pried off the decal from the oem cap and superglued it onto the Mishimoto cap.

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