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Old 03-08-2018, 10:30 AM   #1 (permalink)
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Default 1987 samurai keeps dying on road..need help

just a newbie here trying to learn to fix my 1987 samuari tin top,US model factory stock,4WD, 5-speed manual, with 75,000 miles. Has never had anything major mechanically done to it. It has left me stranded several times the last few months. I will have it at running temp. going down the highway and it will just die like the key was turned off. It has also died going in town at about 30 mph ,when it did it then it kind of coughed, supputered and died. Then after hualing it home (several times) on a trailer and let it seat usually over night it will start the next day (usually using jumper cables from running the battery down trying to start it the day before). When i start it the next day it sometimes takes a lot of cranking and then kind of slowly coughs around a few seconds and starts and runs fine;and sometimes it fires right up perfectly. The last time it died on my son I went in about an hour (so i think it was still warm) and checked and it had spark at the plugs. I took carburetor cleaner ( not starter fluid) and sprayed it directly in and after about a can of it. It finally sputtered and started. After running it for a few minutes it was running good and idling fine.Drove home about 4 miles and it run fine. I have been at this forever now. I have been adding seafoam to the fuel. Changed the fuel filter,changed the fuel pump.Vented the gas cap. Changed the coil just incase. Have taken it to the mechanic. It runs fine for him and he can find no problems. I am out of ideas except going to start rechecking fuel lines. Any ideas to help would be great!!! I like my little sammy and do not want to give up on it. If you see a little blue tin top in Illinois with plates "TONKA 87" that me
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Old 03-08-2018, 12:15 PM   #2 (permalink)
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Have you ever had the carburetor cleaned?

Does your carb have a "sight glass" on the side of the float bowl - if it does - next time it dies, check the glass and see if there is fuel in the bowl.
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Old 03-08-2018, 12:41 PM   #3 (permalink)
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have not had the carb cleaned. and no "site glass"
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Old 03-08-2018, 12:47 PM   #4 (permalink)
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there are no check engine lights. forgot to add that
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Old 03-08-2018, 07:13 PM   #5 (permalink)
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Don't know 87 Samurai
But, throwing out guesses ...
Are there any PCV or EGR valves?
They can sometimes cause hard starts or rough idles?
Take them out and clean them??
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Old 03-08-2018, 08:40 PM   #6 (permalink)
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will try this weekend
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Old 03-09-2018, 12:42 PM   #7 (permalink)
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noticed something different. I have a see thru fuel filter I added in the line between the carbon canister and the carburetor. Someone had told me that crap from the carbon canister could get to the carb. so i put it there. I figured it would just have vapor going thru it. Is there a chance a switch vent could be not functioning or a needle valve sticking sometimes that would give me my symtoms
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Old 03-09-2018, 12:45 PM   #8 (permalink)
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because it has fuel laying inside it (sorry hit enter and spaced out the last message)
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Old 03-09-2018, 04:54 PM   #9 (permalink)
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The most common way for fuel to get into the charcoal canister vent system is overfilling the tank - some people like to top it off until they can't squeeze another drop in - ideally you stop filling when the nozzle clicks off.
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Old 03-10-2018, 09:52 AM   #10 (permalink)
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was missing around looking for but hoses, etc. and my carburetor does have a "sight glass"( it was completely covered in grim and i just thoght it was a recessed area) looks like the float needs adjusted i can not see a level of gas thru it.
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