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Search: Posts Made By: maxmachz
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Forum: C3 Tech/Performance
07-28-2021, 03:29 PM
Replies: 5
Views: 673
Posted By maxmachz

Small vacuum line in the engine bay is...

Small vacuum line in the engine bay is disconnected........ it's a hard line, connects behind the distributor to a rubber hose. Just slides in.
Forum: C3 Tech/Performance
07-06-2021, 06:31 AM
Replies: 39
Views: 2,006
Posted By maxmachz

These ecm's were used on hundreds of thousands of...

These ecm's were used on hundreds of thousands of GM vehicles......maybe millions. You can get them everywhere, NOS, used, and aftermarket.
Forum: C3 Tech/Performance
07-05-2021, 03:54 PM
Replies: 39
Views: 2,006
Posted By maxmachz

Very good discussion! I have the shop manual and...

Very good discussion! I have the shop manual and have read it thoroughly, as well as all of the mandatory tools for the CCC system and E4ME carb. I have removed the AIR pump, cat converter, and also...
Forum: C3 Tech/Performance
07-04-2021, 07:42 PM
Replies: 17
Views: 632
Posted By maxmachz

Do you get hot air out of the defroster, or just...

Do you get hot air out of the defroster, or just ambient / outside temperature?
Forum: C3 Tech/Performance
07-04-2021, 07:36 PM
Replies: 39
Views: 2,006
Posted By maxmachz

This is great information. Looking at the ECM...

This is great information. Looking at the ECM itself, I do not see anywhere that vacuum is monitored or affected for the engine other than emissions controls: the amount of vac is not utilized for...
Forum: C3 Tech/Performance
06-29-2021, 07:51 PM
Replies: 39
Views: 2,006
Posted By maxmachz

1981 CCC power limitations?

How much power, what mods can a person do to the '81 and maintain the CCC system? Yes, I'm well aware it can be removed and replaced with STD carb and distributor, but has anyone left the CCC active...
Forum: C3 Tech/Performance
06-25-2021, 10:25 PM
Replies: 21
Views: 981
Posted By maxmachz

Thanks for everyone's input, turned out the diode...

Thanks for everyone's input, turned out the diode trio center diode had failed.

All good now!! :flag:
Forum: C3 Tech/Performance
06-25-2021, 10:17 PM
Replies: 35
Views: 1,898
Posted By maxmachz

From the GM ervice manual: ...

From the GM ervice manual:

https://cimg4.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/746x842/alt_troubleshoot_59b7b5f7f646c601f1bff90eb767c272648a5bdc.jpg
Forum: C3 General
06-25-2021, 10:14 PM
Replies: 3
Views: 817
Posted By maxmachz

From the GM service manual: ...

From the GM service manual:



https://cimg8.ibsrv.net/gimg/www.corvetteforum.com-vbulletin/746x842/alt_troubleshoot_dd33d59fbb01ec0ea088f18de8844c9eed21dfef.jpg
Forum: C3 Tech/Performance
06-17-2021, 09:45 PM
Replies: 21
Views: 981
Posted By maxmachz

Thanks all. No ID on the alternator other than...

Thanks all. No ID on the alternator other than this; I have to beleive it's the 40 year old original. I'll pull it and have it rebuilt by my local rebuilder that does all my marine alternators and...
Forum: C3 Tech/Performance
06-17-2021, 08:09 PM
Replies: 21
Views: 981
Posted By maxmachz

It does. I remade the connection; The BATT...

It does.

I remade the connection; The BATT light is BRIGHT red with just key on; voltmeter at almost 12. Start the engine, CHOKE light goes out, voltmeter goes to a little over 14, and the BATT...
Forum: C3 Tech/Performance
06-17-2021, 06:00 PM
Replies: 21
Views: 981
Posted By maxmachz

The BATT light comes on at key up, and stays on....

The BATT light comes on at key up, and stays on. The CHOKE light comes on at key up as well, both shut off if I unplug lead #25 at the ALT. The female disconnect spade terminal where lead #25 plugs...
Forum: C3 Tech/Performance
06-17-2021, 11:47 AM
Replies: 21
Views: 981
Posted By maxmachz

I found the wiring diagram, but it appears the...

I found the wiring diagram, but it appears the lead that powers this lamp comes from the alternator via brown lead #25; a direct path from the alt to one side of the bulb on the printed circuit...
Forum: C3 Tech/Performance
06-17-2021, 10:54 AM
Replies: 21
Views: 981
Posted By maxmachz

Why would I even mess with the alternator?...

Why would I even mess with the alternator? Running, it's charging at 13.75 volts. Steady, non fluctuating constant voltage. Perfect.

Not running, key on, solid 12.5 volts. Perfect.

Both of the...
Forum: C3 Tech/Performance
06-16-2021, 10:51 PM
Replies: 21
Views: 981
Posted By maxmachz

1981 battery light on, but volt meter shows OK?

So tonight I started it up to come home, and the battery light comes on. Volt meter shows good charge voltage running, good voltage at rest.

What device is it that turns it on for a bulb check at...
Forum: C3 Tech/Performance
05-26-2021, 01:32 PM
Replies: 47
Views: 3,321
Posted By maxmachz

A stock 1981 200 hp corvette at a track day...

A stock 1981 200 hp corvette at a track day event? That's funny!! :D

I did my test on a 95 degree day, with the air conditioning on. 10 mile run, several full throttle pulls, to sitting at stop...
Forum: C3 Tech/Performance
05-26-2021, 01:17 PM
Replies: 47
Views: 3,321
Posted By maxmachz

Nope, can still spin the fan when it's shut off....

Nope, can still spin the fan when it's shut off. Still, I replaced the fan clutch. When I stomp on it all I hear is fan noise, very little engine noise. No fan installed it sounds NICE. But, I put it...
Forum: C3 Tech/Performance
05-22-2021, 09:39 PM
Replies: 47
Views: 3,321
Posted By maxmachz

Just for a test I removed my engine mounted fan...

Just for a test I removed my engine mounted fan on my 81. I went for a ride, (sure sounded alot better without that fan noise) and it never overheated at all as long as the car was moving. When I got...
Forum: C3 Tech/Performance
11-13-2020, 09:45 AM
Replies: 10
Views: 1,942
Posted By maxmachz

Sounds like a stuck carburetor float to...

Sounds like a stuck carburetor float to me..........
Forum: C3 Tech/Performance
05-06-2020, 02:19 PM
Replies: 4
Views: 690
Posted By maxmachz

Could be the transmission is stuck in lockup....

Could be the transmission is stuck in lockup. Does it do it if you take of in 1st gear, and shift the gears yourself, or only in "D"?
Forum: C3 Tech/Performance
03-28-2020, 09:47 AM
Replies: 3
Views: 339
Posted By maxmachz

If you are runnng an amplifier, run your stereo...

If you are runnng an amplifier, run your stereo and amp grounds right to the battery negative. No more whine.....
Forum: C3 Tech/Performance
03-12-2020, 06:32 PM
Replies: 9
Views: 2,075
Posted By maxmachz

bmotojoe...

bmotojoe (https://www.corvetteforum.com/forums/members/270522-bmotojoe.html) you are the winner! With a really bright light, my readers on and a magnifying glass I could look down that slot and see...
Forum: C3 Tech/Performance
03-12-2020, 07:22 AM
Replies: 17
Views: 1,757
Posted By maxmachz

Yeah, thats why its in the 81 brochures and...

Yeah, thats why its in the 81 brochures and service manuals that it does have it......:smash:
Forum: C3 Tech/Performance
03-11-2020, 09:52 PM
Replies: 9
Views: 2,075
Posted By maxmachz

Sooooo..........tonight I put my readers on so I...

Sooooo..........tonight I put my readers on so I could see better, found two tiny set screws holding that switch housing on the stalk. Removed them, slid the switch housing off the stalk, left with...
Forum: C3 Tech/Performance
03-11-2020, 09:46 PM
Replies: 17
Views: 1,757
Posted By maxmachz

........and that would be why I mentioned it, as...

........and that would be why I mentioned it, as I have an '81 and put just such a switch in my car to do just that, disable the lockup. Best thing I ever did, so much nicer to drive in town without...
Showing results 1 to 25 of 315
 
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