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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
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Old 09-10-2013, 05:19 PM   #1
Wayne220
 
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Default Few questions

I have a 85 mustang gt with 5.0 (no kidding right).

It is running rich, and I'm almost positive it was fuel injected be for since there is unused plugs that match fuel injected wiring. Anyhow here is the issues I'm having:

1. The engine at idle some times goes up and down in rpm between 700 to 1400rpm. I noticed that the 2 front barrels are dripping fuel at idle, I'm no carburetor guy, but don't think that's normal? It as the manual fuel pump on engine.

2. I here a clicking sound through the carburetor, and i have pulled valve covers and found no issue there. It does not do it at start up or a bit after. I do not hear it at all when reving engine. I did notice that the new exhaust fits tight under the car near firewall area, and thought maybe its hitting something causing this, again I'm not sure.

3. How do you adjust the clutch? Its a tranny out of a 95 mustang, and there is no adjustment at the tranny or the engine bay firewall. I am unable to find one under the dash?

The engine runs really great besides the above issues, compression is good etc.

Thanks for any advice.
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Old 09-11-2013, 04:19 PM   #2
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No one?
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Old 09-11-2013, 05:21 PM   #3
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You'll find most guys on here may be geared toward the EFI stuff.

I'm not a carb expert but it shouldn't be dripping at idle.

If the clutch cables been replaced. Look at the other end of it by the throwout and see if there's the adjustment nuts and what not.

I'd get a stethoscope to really pin point the noise. Or a really long screwdriver or pry bar and put it to you ear.
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Old 09-11-2013, 09:16 PM   #4
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Quote:
Originally Posted by 86HOGT View Post
You'll find most guys on here may be geared toward the EFI stuff.

I'm not a carb expert but it shouldn't be dripping at idle.

If the clutch cables been replaced. Look at the other end of it by the throwout and see if there's the adjustment nuts and what not.

I'd get a stethoscope to really pin point the noise. Or a really long screwdriver or pry bar and put it to you ear.
I pulled the drivers seat so i could look up under dash, i think its an auto adjusting clutch cable deal. I think the auto thing is bad, might replace with a manual adjusting cable.

It as not made the clicking said through carb the last time i started the car, but next time it does it (if it does it again), I'll try the screwdriver trick on it.

I just wonder if the manual fuel pump on engine is pumping to much pressure causing it to drip(no the first to bowls, but the ones that activate when your floor it or dripping). I'm going to pick up a 0-100 gauge this weekend.
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Old 09-11-2013, 09:44 PM   #5
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I never had a stock cable in my car, but do a search on here for cable adjustment, I remember there being a certain technique to adjusting it

As for your carb, my truck is still carbed and at idle it does just drip in the primarys. At only 6-8 lbs. of pressure I don't think there would be a fine spray. But I'm no carb guru either.

Good luck
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Old 09-12-2013, 09:52 PM   #6
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Car clicks each time key is turned (one click each time) until it finally starts. Then after it warms up, once turn off it's hard to start(might not even start until cooled down). Like a low battery until cooled off. I been told timing, but then again I'm not sure.. It seems to run fine other then the carb being out of adjustment, only noticed at idle.

So it could be the solenoid or starter. The headers could be heating the starter up to much.

P.S: I"m pretty sure it needs a solenoid, just noting that.
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Old 09-12-2013, 11:13 PM   #7
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I believe 85's were the last year for carbs on the mustang. 86 was the first year of fuel injection
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Old 09-13-2013, 03:34 AM   #8
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I'd get a stethoscope to really pin point the noise.
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Old 09-13-2013, 10:21 PM   #9
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Quote:
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I believe 85's were the last year for carbs on the mustang. 86 was the first year of fuel injection
It as the wiring harness for fuel injection, so it was converted at one time and then back (with harness left in car). Even as the computer plug etc in kick panel(no computer).

Can anyone explain the wiring for the solenoid? Like what wires should be on it etc. I think my starter is shot, but still want to double check this. It was cranking like a low battery, and now you can hardly hear the starter. I took the starter apart and did not notice anything out of the normal.
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Old 09-14-2013, 11:50 PM   #10
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I read the battery goes on one of the big post and the rest on the other, however it will not give power to starter unless all hooked to one.

Anyhow: this is what the car is doing now (not my car, but sounds the same)
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Old 09-15-2013, 08:33 PM   #11
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problem fixed, alternator wiring was problem.
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Old 09-15-2013, 09:45 PM   #12
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Car in the video has a sticking lifter.
I also think that the carb floats are not set right.
If your car gas the same symptoms it may well have the same problems.....
I maybe the last of the carb guys on this board....
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Old 09-15-2013, 11:30 PM   #13
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Quote:
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C
I maybe the last of the carb guys on this board....
not quite...I'm still here
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Old 09-17-2013, 07:36 AM   #14
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Quote:
Originally Posted by tinman View Post
Car in the video has a sticking lifter.
I also think that the carb floats are not set right.
If your car gas the same symptoms it may well have the same problems.....
I maybe the last of the carb guys on this board....

It as not been doing like the car in the video since alternator wire was correctly hooked up. I do know the carb needs rebuilt as the idle is random when you push clutch in (goes up to around 2k until you tap throttle).
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Old 09-18-2013, 05:36 PM   #15
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maybe someone can help with this:

Click the image to open in full size.

My 85 does not have a pointer like that(the 1 and 2). IT only as the circle one #3 in image? Do i set my timing on the #3 for it?


... hope that makes sense, after 10 hour work day I'm... tired.
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Old 09-18-2013, 06:59 PM   #16
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carb like said could need the floats adj. what is the fuel pressure at if it is to high it can drip also. You could also change out the needle and seat it will also make it drip.
Clutch adj. grab the clutch pedal and pull it to you it is a self adj. setup up if it is stock I think they were like that in 85 also I had one years ago and really cant remember.
Dont know about the tap if I cant hear it.
Sounds like the pointer is broke off or someone has changed it out. the hole from what I was told was for a scope back in the day.
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Old 09-19-2013, 07:25 PM   #17
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It looks factory, does not look like anything was broke off it. Guess i could buy a different one for it.
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Old 09-19-2013, 07:25 PM
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