1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Well that doesn't help the problem...

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Old 08-02-14, 09:06 PM
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Thumbs down Well that doesn't help the problem...

Just early this week I picked up myself a 1984 GS. It has clutch problems and starting problems.

Clutch I believe just needs a slave cylinder and a bleeding.

It will start if gas is poured directly into the carb. I pulled the fuel lines out, and saw that fuel is indeed getting to the carb.

But it looks like this.
Normal on the left, what ever is in the tank on the right.





Also, I don't thing the tach or gas gauges work.
Old 08-02-14, 09:13 PM
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Drain the tank, refill and try again
Old 08-02-14, 09:28 PM
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Originally Posted by Str3atWarrior
Drain the tank, refill and try again
That's plan! I just need a hose long enough send it into another container. I just hope that the tank is actually empty, and not just the gauge working improperly.
Old 08-02-14, 09:37 PM
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Originally Posted by frozenmoustache
That's plan! I just need a hose long enough send it into another container. I just hope that the tank is actually empty, and not just the gauge working improperly.
The tank has a drain plug on the bottom towards the drivers side. Just put the car on jack stands, place a bucket under the drain plug and remove the drain plug.
Old 08-02-14, 10:03 PM
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Originally Posted by KansasCityREPU
The tank has a drain plug on the bottom towards the drivers side. Just put the car on jack stands, place a bucket under the drain plug and remove the drain plug.
I did not know that.
Thanks!
Old 08-05-14, 09:56 AM
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Over the weekend I was able to wrench on the 7 a little.

I started by tearing out the interior to get to the fuel pump connector to disconnect it. There was more rust than i hoped. But this isn't a build thread, so i won't go into detail.

I removed the fuel pump as I didn't hear it humming/running. After I "accidentally" dropped it, I managed to get it to work again.
Some fresh gas into the tank (Which was VERY empty) and I was able to start it up.

Now the problem is that I can get it started without the choke, but it won't stay running if I don't play with the choke/throttle constantly. Does anyone have any input/advice?

Also I didn't realize how much amperage it took to turn these motors over.
Old 08-05-14, 10:52 AM
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Originally Posted by frozenmoustache
Over the weekend I was able to wrench on the 7 a little.

I started by tearing out the interior to get to the fuel pump connector to disconnect it. There was more rust than i hoped. But this isn't a build thread, so i won't go into detail.

I removed the fuel pump as I didn't hear it humming/running. After I "accidentally" dropped it, I managed to get it to work again.
Some fresh gas into the tank (Which was VERY empty) and I was able to start it up.

Now the problem is that I can get it started without the choke, but it won't stay running if I don't play with the choke/throttle constantly. Does anyone have any input/advice?

Also I didn't realize how much amperage it took to turn these motors over.
1. Replace fuel filter if you already didn't.
2. Test to make sure fuel flow to the carb is adequate. Just unhook the hose and
see how long it takes to get 1.2 gallon in the jug. Should be 30 seconds or
something like that. I don't remember the maths but you can figure it out. Just
make sure the flow is good and strong.
3. Run some seafoam through the tank and see if it clears out the carb.
4. May need to rebuild the carb if it won't idle. Could be gunked up from old gas
sitting in it.
Old 08-05-14, 01:00 PM
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Replacing fuel lines, cleaning tank and installing new sock on pickup, and rebuilding the carb are or should be part of the price of admission to the new 12a owners club.
Old 08-05-14, 02:26 PM
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Originally Posted by t_g_farrell
1. Replace fuel filter if you already didn't.
2. Test to make sure fuel flow to the carb is adequate. Just unhook the hose and
see how long it takes to get 1.2 gallon in the jug. Should be 30 seconds or
something like that. I don't remember the maths but you can figure it out. Just
make sure the flow is good and strong.
3. Run some seafoam through the tank and see if it clears out the carb.
4. May need to rebuild the carb if it won't idle. Could be gunked up from old gas
sitting in it.
I'm almost positive that the fuel flow is good. It's pumping quite a bit of gas. (Will fill a 500ml water bottle in a few seconds)

I'm wary of the seafoam treatment. I know people have done it in the past with success, but I'd rather just take the carb off and rebuild it.

Originally Posted by Cookboy
Replacing fuel lines, cleaning tank and installing new sock on pickup, and rebuilding the carb are or should be part of the price of admission to the new 12a owners club.
I think that fresh gas should be adequate enough to clean the tank out. It's already helping.
Fuel lines could definitely be replaced, same goes for the filter.


Are there any carb rebuilding how-to threads that someone can lead me too?
Old 08-05-14, 04:27 PM
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Originally Posted by t_g_farrell
4. May need to rebuild the carb if it won't idle. Could be gunked up from old gas
sitting in it.
As in...

Old 08-05-14, 05:40 PM
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If you google 'the wayback machine sterling metalworks' you'll find a great one. The same information can be found on this site, but mostly in bits and pieces. Reading is a wonderful gateway to knowledge.
Old 08-06-14, 12:27 AM
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You dribbled some Molasses in your carb right before that shot, didn't you. lol
Old 08-06-14, 12:44 AM
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About that consistency - - very tarry & was all through the carb. Took a lot of soaking in solvent to get it really clean.
Old 08-06-14, 03:27 AM
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Still looks tasty. Which solvent did you use? I'd imagine simple brake cleaner could soften it up some. But the carb death dip would be my guess.

Hmm, thinking about it, my broken 6 port manifold had some molasses in it too. It came off with brake cleaner. Then I used engine degreaser and other stuff to clean it up.
Old 08-06-14, 09:55 AM
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I used both. I wish you could still get the old-school mutate-your-genetic-material carb dip; the modern stuff doesn't work very well.
Old 08-06-14, 04:28 PM
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Rebuild the carb and replace fuel filter. Don't bother with anything that's not rebuilding the carb. In the end, all will fail and you will rebuild it. Sterlings write up is very good. Welcome to the club.
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