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Old 06-01-2011, 08:29 PM   #1 (permalink)
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Default Sending Unit or Fuel Pump

I am looking at a real nice 87 tin top and the owners only has one issue with the vehicle. At speeds above 40ish it begins the sputter. He has taken it to a suzuki specialist and he said it's the fuel sending unit in the tank.

He said it is "welded in" however and the entire tank needs to be replaced.

Now maybe I have my terminology wrong (or I misunderstood him) but I thought the sending unit just sent the signal to the gas gauge. It's the fuel pump that pumps the fuel to the engine. And on an '87 is that not located in the engine bay?

I'm a bit confused. Can someone set me straight?
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Old 06-02-2011, 12:25 PM   #2 (permalink)
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that suzuki specialist is a scammer. the sending unit is screwed down at the top of the gas tank, and to me sounds like carb problems, possibly fuel related. Either way easy fix........ buy the tin top, and it shouldnt be more than puttin on another carb. i exclusivly run side draft carb from petroworks. no sensors, no wires, no nonsense, all power!
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Old 06-02-2011, 03:53 PM   #3 (permalink)
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I got the name and number of the specialist and called him, as I suspected it was a misunderstanding of terminology. It is the pickup tube that is welded in and has apparently (in his estimate) developed some holes that are sucking in air making it sputter. He suggested running a line from the fuel filter around the outside of the vehicle into the gas filler tube and see how it runs. If that fixes it then that's the issue.

I don't think he was a scammer, just some miscommunication along the way.

The carb was just tuned up (new wires, plugs as well) as they thought that was also the problem.

The pickup tube being faulty sounds like it's possible. What do you think?

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Old 06-02-2011, 06:31 PM   #4 (permalink)
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ahh ok, makes sense now, hehe! Well thats definitly a possibility, it could happen, but I doubt it, never heard of that happening on a Samurai. My guess is still the carb. They have too many sensor, and they are very old now, so its easy for them to malfuction.
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Old 06-02-2011, 07:02 PM   #5 (permalink)
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How hard is it to do as the guy suggests, put a tube in some gas...or the tank as stated ? If the problem does go away then it is related to getting the gas out of the tank.
My tube fell off inside the tank, 'they' said because of 'rough roads'.
Took the up take cover off and there was no tube going into the gas. Soldered another on and it works today. I've seen a tube with the above mentioned holes fixed with gas friendly plastic tube slipped over the metal tube and allowed to 'rest' on the bottom of the tank.
If messing around in the tank change the fuel filter often afterwards.
Just sayin'

Last edited by arlo; 06-02-2011 at 07:04 PM. Reason: spellun bad
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