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Search: Posts Made By: ZZ28ZZ
Showing results 1 to 50 of 500
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Forum: Tech / General Engine
01-23-2017, 12:25 AM
Replies: 4
Views: 469
Posted By ZZ28ZZ

Should I sell it?

Bought my 82 Z28 (crossfire) in 1984 with 12k miles on the clock. It was my daily driver up until abt 1999. Racked up 230k miles. Car was bone stock. Got the bug to start upgrading it. Bought a 87...
Forum: Tech / General Engine
07-28-2012, 06:23 PM
Replies: 4
Views: 616
Posted By ZZ28ZZ

Re: Wierd Engine Idle

The plugs should be slightly tan colored. A compression test would be a good idea if you haven't done one in a while.
There's few different ways to check for a miss. A solid miss is a lot easier to...
Forum: Tech / General Engine
07-26-2012, 12:04 AM
Replies: 6
Views: 6,963
Posted By ZZ28ZZ

Re: Opinions on proper valve adjustment hydraulic cam/lifters, with roller rockers

Warm-up eng (a warm eng will idle lower and cut down on the oily mess). Shut it off. Pull valve covers off. Start eng. Back off on rocker arm adjustment until you hear it tapping. Slowly tighten...
Forum: Tech / General Engine
07-25-2012, 11:49 PM
Replies: 4
Views: 616
Posted By ZZ28ZZ

Re: Wierd Engine Idle

Sounds like an intermittent miss. Plug wires in good shape and not too close to exhaust?
Forum: Tech / General Engine
07-25-2012, 11:21 PM
Replies: 5
Views: 663
Posted By ZZ28ZZ

Re: Have results of compression test, need advice.

I never tried it but, I suppose you could rig up an adapter so you could pressurize say cyl#8 and connect your compression gauge to cyl#6 and see if any pressure transfers. You would need to loosen...
Forum: Tech / General Engine
07-23-2012, 01:06 AM
Replies: 2
Views: 884
Posted By ZZ28ZZ

Re: 86 iroc still stalling when gas pedal pushed

Did you set the tps voltage to .54v with throttle closed?
Check fuel pressure?
Forum: Tech / General Engine
07-23-2012, 12:46 AM
Replies: 5
Views: 663
Posted By ZZ28ZZ

Re: Have results of compression test, need advice.

The leakdown (also known as a differential compression) test will tell you where the leak is. Just listen in the intake, exhaust and oil cap. You should be able to hear air leaking from one of those....
Forum: Tech / General Engine
07-23-2012, 12:27 AM
Replies: 14
Views: 1,125
Posted By ZZ28ZZ

Re: Awkward overheating

Assuming your lower radiator hose isn't collapsing any more, verify the air dam is in good shape.
In regards to the missing, pull/inspect the plugs.
A compression test would be a good idea too.
Forum: TPI
07-17-2012, 12:04 AM
Replies: 12
Views: 2,014
Posted By ZZ28ZZ

Re: Tpi budget build question

I had 2.02/1.60 valves installed in my 083 TPI (iron) heads.
Forum: Tech / General Engine
07-12-2012, 01:54 PM
Replies: 10
Views: 4,322
Posted By ZZ28ZZ

Re: Shattered Spark Plug, What did it break? Please Help!

Best to tear it down now. If it continues to run you risk debris getting into other cyls and causing more damage. I had a chunk of exhaust valve break off on a chevy 350 in my boat. I ran it till it...
Forum: Tech / General Engine
07-12-2012, 01:45 PM
Replies: 1
Views: 635
Posted By ZZ28ZZ

Re: Car wont stay tunning after start

Check firing order, timing, look for a major vacuum leak.
Forum: Tech / General Engine
07-11-2012, 11:35 PM
Replies: 5
Views: 1,251
Posted By ZZ28ZZ

Re: What is the Sensor Screwed into the Intake

Its on the front of the eng, just below the thermostat. The connectors tend to fall apart after a while. You can check the resistance of the sensor and compare with a temp/resistance chart like this:
Forum: Tech / General Engine
07-11-2012, 11:09 PM
Replies: 3
Views: 540
Posted By ZZ28ZZ

Re: What is a stall?

It relates to the torque converter on an automatic trans. Its roughly the RPM the eng can is allowed to turn with the wheels not turning. I higher stall allows the eng to rev higher when launching...
Forum: Tech / General Engine
07-10-2012, 12:32 AM
Replies: 5
Views: 1,251
Posted By ZZ28ZZ

Re: What is the Sensor Screwed into the Intake

If you have a MAF, the MAT sensor has no effect on mixture, it's only used for EGR operation.

If you have a MAP, it can have a small effect.

If you running very rich, I would check the coolant...
Forum: DIY PROM
07-09-2012, 05:00 PM
Replies: 12
Views: 871
Posted By ZZ28ZZ

Re: Unable to copy ign timing table

The one I downloaded from here:
http://www.tunerpro.net/downloadBinDefs.htm
The first one on the list.

Issue was resolved thx to RBob.

High value was set too low (43 degs).
I have a max...
Forum: DIY PROM
07-08-2012, 11:08 PM
Replies: 12
Views: 871
Posted By ZZ28ZZ

Re: Unable to copy ign timing table

You nailed it RBob!! :thanks:
Forum: DIY PROM
07-06-2012, 10:24 PM
Replies: 12
Views: 871
Posted By ZZ28ZZ

Re: Unable to copy ign timing table

I checked the xdf's conversion tab for the spark table.
It has " 0.351567 * X + 0.000000 " in the top left cell (and at the top of the screen). All the other cells are blank.
Is that correct?
...
Forum: Tech / General Engine
07-05-2012, 12:53 PM
Replies: 3
Views: 1,248
Posted By ZZ28ZZ

Re: oil in spark plugs. mechanic told me engine was done

It could be something relatively easy like valve seals, or it could be broken pistons and/or oil rings. Need to do a compression test on eng to see it it's worth trying to save. If it's a goner, it...
Forum: Tech / General Engine
07-05-2012, 12:24 PM
Replies: 2
Views: 691
Posted By ZZ28ZZ

Re: TPI Fuel Pump?

It has been a long time since I checked fuel press on a CFI but aren't they supposed to be like 11.5 or 12 psi?
I do remember they're very sensitive abt the press being set right on the money.....
Forum: Tech / General Engine
07-05-2012, 12:10 PM
Replies: 10
Views: 4,955
Posted By ZZ28ZZ

Re: Sprayed starter fluid then it started ? what's wrong ?

The fuel press regulator keeps gas from going back to tank until ~45 psi of fuel press builds up then allows gas to go back to tank while holding the fuel rail press at ~45 psi. The regulator is abt...
Forum: Tech / General Engine
07-05-2012, 11:52 AM
Replies: 3
Views: 815
Posted By ZZ28ZZ

Re: Failed Emissions. VERY Rich?!?!?! Im stumped

The coolant temp sensor connectors are known to fail. I had to replace mine a while back. Good thing to check.
Check your temp sensor with this:
Forum: Tech / General Engine
07-05-2012, 11:41 AM
Replies: 3
Views: 1,425
Posted By ZZ28ZZ

Re: replacing ICM

Timing shouldn't be effected unless you turn the dist while working on it.
Make sure dist hold-down bolt is tight and you should be OK. Pop off the rotor, unscrew a couple of screws holding ICM,...
Forum: DIY PROM
07-04-2012, 11:44 PM
Replies: 12
Views: 871
Posted By ZZ28ZZ

Re: Unable to copy ign timing table

Both bins have been hac'ed to allow WB02 to be included in datastream. Other than that, they are normal bins.
If I highlight all the cells and hit "copy from compare", all values turn red even the...
Forum: Tech / General Engine
07-04-2012, 04:34 PM
Replies: 3
Views: 815
Posted By ZZ28ZZ

Re: Failed Emissions. VERY Rich?!?!?! Im stumped

Pull vac line off fuel press regulator. If you see fuel, the diaphram is leaking.
Connect fuel press tester to fuel rail to check fuel press.
Forum: DIY PROM
07-03-2012, 09:53 PM
Replies: 12
Views: 871
Posted By ZZ28ZZ

Unable to copy ign timing table

I'm in the process of switching bins using TunerProRT.
I can copy and save everything except the ign timing table.
I can copy the table, save the table, save the file, but when I re-open it, all...
Forum: DIY PROM
07-03-2012, 09:49 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

Got it to work using the bin here:
https://www.thirdgen.org/forums/di...band-data.html (APYPWB ARAPWB Wideband data logging are here)

Thx for all the help guys!!
Forum: Tech / General Engine
07-03-2012, 09:41 PM
Replies: 14
Views: 1,125
Posted By ZZ28ZZ

Re: Awkward overheating

Retarded ign timing will make an eng run hot. Probably should verify it with a timing light.

In regards to the lower radiator hose, did you hold the rpm at abt 2500 RPM for like a min or was it...
Forum: Tech / General Engine
07-03-2012, 09:32 PM
Replies: 26
Views: 1,817
Posted By ZZ28ZZ

Re: Car does not start - full power to everything

If it's an automatic, hold key to start position with left hand (kind of awkward I know) and wiggle the shifter while in park and neutral. If this helps you have a bad/mis-adjusted neutral safety...
Forum: Tech / General Engine
07-03-2012, 09:18 PM
Replies: 14
Views: 1,125
Posted By ZZ28ZZ

Re: Awkward overheating

Just to be clear, the fan is blowing air towards the eng right?
Is the ignition timing set right?
Any bubbles in the coolant?
Is the lower radiator hose collapsing when the eng is rev'ed up?
Forum: Tech / General Engine
07-03-2012, 02:02 PM
Replies: 8
Views: 873
Posted By ZZ28ZZ

Re: We are STUMPED! Our girl has attitude! lol

Sounds like an elec problem.
I would check the big wire going from the batt to the starter. Make sure it isn't rubbing on anything and shorting out. Look for any wires getting up aginst the exhaust...
Forum: Tech / General Engine
07-03-2012, 01:45 PM
Replies: 5
Views: 837
Posted By ZZ28ZZ

Re: detonation problem, computer, Ignition Qs

If you have a laptop, you can download s/w that will monitor and record all the eng data (known as datalogging). I recently started using the TunerProRt s/w. It's pretty cool. It can be found here:...
Forum: Tech / General Engine
07-03-2012, 01:03 AM
Replies: 5
Views: 837
Posted By ZZ28ZZ

Re: detonation problem, computer, Ignition Qs

The spark adv is controlled by the spark table on the chip. The spark table assumes the initial timing was set right.
The initial timing is determined by how the dist was indexed. That can be...
Forum: Tech / General Engine
07-03-2012, 12:07 AM
Replies: 9
Views: 1,983
Posted By ZZ28ZZ

Re: Coating inside of gas tank

Check with your local radiator shop. A lot of them will rpr gas tanks. They offered a polypropelene (sp?) coating for $250 that is supposed to outlast the car.They also mentioned Tractor Supply sells...
Forum: Tech / General Engine
07-02-2012, 11:43 AM
Replies: 8
Views: 889
Posted By ZZ28ZZ

Re: help 82 trans am severe power issue

After 8 years the fuel sys has to trashed. I imagine the fuel that was in the tank had varnished, fuel filter probably clogged and the carb most likely has plugged passages (especially the idle...
Forum: Tech / General Engine
07-02-2012, 11:25 AM
Replies: 15
Views: 4,268
Posted By ZZ28ZZ

Re: High oil pressure and guessing game.....

Yeah it's carbed. 1984 Mercruiser 260.
I'm not aware of any boats that run closed loop. Kinda tough to get a 02 sensor to work when it's being showered with water all the time.:o
Forum: Tech / General Engine
07-02-2012, 01:45 AM
Replies: 6
Views: 605
Posted By ZZ28ZZ

Re: fuel problem still

Have you monitored the fuel press while eng is surging? It would have to change a lot to cause surging at idle. I have an adjustable fuel press regulator and I've adjusted it down to 25-30 psi...
Forum: Tech / General Engine
07-02-2012, 01:17 AM
Replies: 13
Views: 1,040
Posted By ZZ28ZZ

Re: 91 RS overheat

I fought overheating issues for a long long time. Living in Texas will bring out any weakness in a cooling sys. Tried a swapping radiators, thermostats, adding cooling fans, modifying the airdam,...
Forum: Tech / General Engine
07-02-2012, 12:54 AM
Replies: 15
Views: 4,268
Posted By ZZ28ZZ

Re: High oil pressure and guessing game.....

On a side note, boat motors tend to have higher oil press since the eng (and oil temp) never get very hot. Mine runs abt 150 degs no matter how hard it is pushed.
Forum: Tech / General Engine
07-02-2012, 12:19 AM
Replies: 1
Views: 551
Posted By ZZ28ZZ

Re: Power balance test results

Do you have any ALDL data?

Is the IAC disconnected for the test?

Does the ign timing change any during the testing?
Could knock counts be pulling some timing when testing cyls 3-8?
...
Forum: Tech / General Engine
07-01-2012, 10:26 PM
Replies: 6
Views: 901
Posted By ZZ28ZZ

Re: Car wont idle right

Have you tried plugging the PCV and brake booster vac hoses?
Carb or fuel inj?
Forum: Tech / General Engine
07-01-2012, 10:02 PM
Replies: 1
Views: 517
Posted By ZZ28ZZ

Re: 91 Firebird ,,acts like it running out of gas

A bad ignition module will act like that. They usually work ok when cold, then act-up when they get hot. Some auto parts stores are able to test them.

If you remove/replace it, be sure to apply...
Forum: Tech / General Engine
06-28-2012, 07:29 AM
Replies: 4
Views: 732
Posted By ZZ28ZZ

Re: Where should I start upgrading my 350?

I'd start with exhaust. Without free flowing exhaust, eng mods won't help much. A cat-back would be a good place to start, get rid of the cat if you can, then headers.
Intake would be second, cam...
Forum: DIY PROM
06-27-2012, 11:33 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

That's good to know.. I stopped trying at offset 50 with my original bin.. Makes me wonder if I had kept going would I have found it..

I've made contact with author of the hac'ed bin I'm using....
Forum: DIY PROM
06-27-2012, 12:38 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

Yes, I downloaded the zip file yesterday.
I had prev downloaded that zip file, viewed the ads/adx file, and noticed it was the same config I had already tried. Now I'm thinking if I used the bin...
Forum: DIY PROM
06-27-2012, 12:15 AM
Replies: 17
Views: 6,138
Posted By ZZ28ZZ

Re: Tunerpro and wideband

Thx for the link caboboy!
I unzipped and viewed the ads/adx file in tunerproRT. Under values/wide band, I viewed the general and conversion tabs and it's identical to the ads/adx file I downloaded...
Forum: DIY PROM
06-26-2012, 11:48 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

The only logging s/w I've used before is Moates ECM852. It's a DOS based program. No way that I know of to poke around inside.

I started using the modified bin when I started using the ECM852. The...
Forum: DIY PROM
06-26-2012, 11:27 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

I emailed Moates early today, but no response yet.

My prom ID is 1023.

I opened the bin in notepad and saw at the end it is copyrighted by Mike Davis. Is he still around??
Forum: DIY PROM
06-26-2012, 11:03 PM
Replies: 17
Views: 6,138
Posted By ZZ28ZZ

Re: Tunerpro and wideband

I tried the APYP bin and ads/adx files in that link. I swappwd all the APYP settings with my ARAP constants/flags/tables. The eng fired up and ran OK but still no WB02 reading with the TunerproRT...
Forum: DIY PROM
06-26-2012, 10:44 PM
Replies: 29
Views: 2,482
Posted By ZZ28ZZ

Re: How to configure ADX for WB

I went thru all the "values" and "bitmasks" (of my known-to-be-good wb02 bin) making a list of all the packet offsets used.
I then tried most of the unused ones. Started at 0X00 and went up to 0x50,...
Forum: DIY PROM
06-26-2012, 10:02 AM
Replies: 7
Views: 1,237
Posted By ZZ28ZZ

Re: Getting back into it

Thx for all the replies. I now have TunerproRT up and going now. Getting the WB02 to display is my next challenge. I've started another thread for that.
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