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Search: Posts Made By: asilverblazer
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Forum: Carburetors
06-09-2023, 04:51 PM
Replies: 11
Views: 641
Posted By asilverblazer

Re: Engine runs erratically

Make sure there are no vacuum leaks in the system.

Also sounds like you need to try to get a baseline on the adjustment screws (all the way in the back out X turns, but I don't recall off hand...
Forum: Electronics
06-09-2023, 04:47 PM
Replies: 6
Views: 356
Posted By asilverblazer

Re: I have now power in my 1992 firebird

Check battery cables.

Quick check - bypass them with jumper cables.
Forum: Suspension and Chassis
06-23-2022, 10:36 AM
Replies: 24
Views: 1,165
Posted By asilverblazer

Re: Static Third Gen?

Morbid curiosity caused me to cruise that instagram - I gathered that he isn't taking the springless suspension very seriously. Maybe using it as an attention getter?
Forum: Suspension and Chassis
06-22-2022, 12:13 PM
Replies: 24
Views: 1,165
Posted By asilverblazer

Re: Static Third Gen?

You guys - you obviously didn't see the pictures of the guy's car without the springs. We should all be clamoring to learn from this marvel of automotive engineering and restoration.

Seriously,...
Forum: Tech / General Engine
06-13-2022, 04:25 PM
Replies: 188
Views: 9,772
Posted By asilverblazer

Re: Reinstalling quadrajet and as much Emissions as possible

Sounds to me like you don't need a mechanic, you need some wrenches!
Forum: Tech / General Engine
05-31-2022, 03:59 PM
Replies: 3
Views: 417
Posted By asilverblazer

Re: Brake Booster

A bad brake booster would act like a vacuum leak and increased pedal effort.
A bad master cylinder could "give a little sometimes" if brake fluid leaks past the master cylinder. Usually a master...
Forum: Electronics
05-10-2022, 10:05 AM
Replies: 7
Views: 573
Posted By asilverblazer

Re: Please help racking my head trying to figure this out

For the 1/2 dash lights that aren't on, I'd make sure the bulbs are good.

I'd look at the switch and dimmer for the dash lights going out with the headlights coming on.

I'd check/replace all...
Forum: Tech / General Engine
04-27-2022, 08:06 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Not sure how much I helped myself, that priming circuit works.
Unhooking the linkage to the air valve, no change.
Zip tying it open, definite bog, it would kind of recover back not really better. ...
Forum: Tech / General Engine
04-27-2022, 11:35 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Since all other indications are the car is otherwise in working order. I'm going back to the carburetor/fueling being the problem.
I'm working on my understanding of the power circuit of the...
Forum: Tech / General Engine
04-26-2022, 07:24 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Timing with the EST unplugged, I found the right one, was a bit too advanced from spec. It was about 15-20 degrees BTDC, I dialed it back to 6 degrees BTDC.

Idles WAY better may or may not have an...
Forum: Tech / General Engine
04-26-2022, 05:04 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I think I will check the timing to cover my bases which I am running out of.

I know there is something wrong somewhere I just haven't found it yet. Retarding the timing at idle improved the idle...
Forum: Tech / General Engine
04-25-2022, 04:44 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I forgot that disconnecting the four wire plug in distributor cap killed the engine. I thought that was the EST...
Forum: Tech / General Engine
04-25-2022, 03:09 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I have not disconnected the EST, only the ESC.
I need to find the tan with black tracer wire to unplug, disconnecting the EST right? I can't find timing check instructions in the service manual,...
Forum: Tech / General Engine
04-25-2022, 12:44 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I educated myself a bit...
At idle with everything connected test terminal not grounded. Timing is WAY advanced nowhere near the scale. 60 degrees sounds wrong but if from the big valley to the end...
Forum: Tech / General Engine
04-25-2022, 10:50 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I was picturing the sawtooth indicator at 12 o'clock - I'll readjust my description below to account for that. The mark I see on the balancer is a solid line that goes across the balancer. That mark...
Forum: Tech / General Engine
04-24-2022, 07:16 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Chart C-5 leads to bad ESC module.

At idle the timing mark on the balancer is at about 8 o’clock visible only visible looking under the alternator and water pump way advanced or retarded of the...
Forum: Tech / General Engine
04-24-2022, 04:32 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I got it to run near 30 degrees dwell, monitoring oxygen sensor, it would fluctuate and dwell would follow it. Still misses, still no WOT.

I’ll need to confirm TPS voltage, it was a smidge high....
Forum: Tech / General Engine
04-22-2022, 08:21 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I found a couple things this evening, with most vacuum ports capped:
When in diagnostic mode I can get dwell to behave correctly, varying around 30 degrees. It requires screwing the idle air valve...
Forum: Tech / General Engine
04-21-2022, 08:46 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Got the new ECM in, no codes - good.
Still misses, still no WOT.
I pulled plug wires one at a time and they all seemed to make it equally worse, I might try that again with a tachometer or vacuum...
Forum: Tech / General Engine
04-21-2022, 10:00 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Thanks for all the help so far gentlemen!
Recap:
The car does not have the original engine. Lots of wiring and vacuum lines were unhooked, ran incorrectly, etc. Car has had a miss, and smelled...
Forum: Tech / General Engine
04-21-2022, 09:36 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I probably am fighting a miss. I tightened up the idle air bleed and it helped some. I don't think that is the solution though. Once I get the new computer installed I'll be more confident with...
Forum: Tech / General Engine
04-21-2022, 09:28 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I couldn't remember the numbers on my gauge... but I found a picture from another project. 17-18 With no wild fluctuations maybe 1 at misses.
Forum: Tech / General Engine
04-20-2022, 01:55 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I can't tell if if pegs one direction or the other, but there are some noticeable swings in it that track with the actual stumbling miss in the car.

Plugs, wires, cap and rotor are all new.

I...
Forum: Tech / General Engine
04-20-2022, 09:08 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Long story short, I repaired one of my two ECMs by pulling a chip from one and soldering it on to the other.

Back working - at least enough to do some more testing.

Dwell is varying both at...
Forum: Tech / General Engine
04-19-2022, 09:06 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

EBAY... does too, for less.:thumbsup:
Forum: Tech / General Engine
04-18-2022, 08:25 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Ugh, another set back. The junkyard ECM died. Problems are increasing rather than decreasing, so frustrating, I know why everyone abandons this and goes to mechanical carburetor and distributor. I’m...
Forum: Tech / General Engine
04-18-2022, 03:00 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I've been thinking about this problem with WOT performance. The only changes were made in the carburetor via a rebuild kit. Only a few possibilities exist:
1. The secondary throttle blades aren't...
Forum: Tech / General Engine
04-17-2022, 10:30 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

M/C solenoid travel was checked on the bench, a hair over 4/32”.
Secondaries are connected, metering rods in the hangers, the hanger moves up with the air valve.
I presume the rich stop is high...
Forum: Tech / General Engine
04-17-2022, 06:58 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Got the carburetor bench adjusted, back on the car with the following results.
Still messy idle, will occasionally stall.
Runs ok at medium throttle input.
New problem, no WOT. At about 3/4 pedal...
Forum: Tech / General Engine
04-15-2022, 10:27 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Thanks for all that information, I haven't come across much of it yet.
I was intending to set the lean mixture stop using some sort of something trimmed down to the 1.304" spec. Then set the rich...
Forum: Tech / General Engine
04-14-2022, 11:44 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I done screwed up, I didn’t remember the turns on the lean mixture screw during disassembly, so I’m sure my rebuild results won’t be pretty. Of course this isn’t a virgin core either, all the plugs...
Forum: Tech / General Engine
04-14-2022, 12:19 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I think I'm going to do a rebuild on the carburetor, along with a new distributor cap and rotor. Car is definitely running worse than before getting the ECM working. Since the only thing different is...
Forum: Tech / General Engine
04-13-2022, 05:00 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Update: Finally got the ECM off its 20 year bender - sobered up and trying to work things out with the carburetor at least.

After diagnosing a no blink check engine light as a burnt up ECM and...
Forum: History / Originality
03-18-2022, 09:28 AM
Replies: 4
Views: 468
Posted By asilverblazer

Re: Z38 - I know…

I'm pretty sure its a dealer thing. No RPO code suggests the car is anything other than a sport coupe. Car isn't mine, but I know a considerable amount of its history. It was bought a year or two old...
Forum: History / Originality
03-17-2022, 10:07 PM
Replies: 4
Views: 468
Posted By asilverblazer

Z38 - I know…

So I looked on this site and found a few really old threads, but in the link below I posted about the Camaro I am working on which is in fact a “Z38”. However as has been suggested I am of the...
Forum: Tech / General Engine
03-17-2022, 04:29 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Dark green wire must go to another temperature switch, I didn't expect there to be two...

Aside from the mystery port on the rear of the carburetor, up high right under the air cleaner. I think it...
Forum: Tech / General Engine
03-16-2022, 08:51 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

I found a diagram that I was able to reroute some items and match up to pretty closely. This took care of the port on the front. One line is supposed to run to the air cleaner, but I don’t know if I...
Forum: Tech / General Engine
03-16-2022, 11:29 AM
Replies: 51
Views: 1,729
Posted By asilverblazer

Re: Delete or Repair

Thanks for all the input!

I think I'm making some headway making sense of everything in the engine compartment. I'll need to spend some time with a wiring and vacuum diagram to verify what is and...
Forum: Tech / General Engine
03-14-2022, 04:16 PM
Replies: 51
Views: 1,729
Posted By asilverblazer

Delete or Repair

I've been reading a bunch of information on this car - 85 LG4 Sport Coupe - I'm working on getting it in better repair for a family member.

The car has been butchered by several different shops...
Showing results 1 to 39 of 39


 
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