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Search: Posts Made By: tgreese
Forum: General FSJ Tech 01-12-2021, 09:47 AM
Replies: 19
Views: 8,678
Posted By tgreese
Wow, 2012. Good thread, and worthwhile to bring...

Wow, 2012. Good thread, and worthwhile to bring it to the top again.

My '82 has the battery symbol for this gauge, which applies to either an ammeter or voltmeter. No need for any additional...
Forum: General FSJ Discussion 01-08-2021, 12:22 PM
Replies: 14
Views: 414
Posted By tgreese
Old rubber fuel hoses should be replaced too (not...

Old rubber fuel hoses should be replaced too (not necessarily the filler hoses, unless they are obviously cracked). I always replace all the hoses and belts on any new/old car - fuel delivery and...
Forum: General FSJ Tech 01-07-2021, 02:48 PM
Replies: 4
Views: 168
Posted By tgreese
Thriftside and Townside tailgates are different,...

Thriftside and Townside tailgates are different, for every year. The Thriftside tailgate is a very early part number, likely the same as the Utility Truck tailgate. Nothing like either of the...
Forum: General FSJ Tech 01-06-2021, 10:49 AM
Replies: 20
Views: 496
Posted By tgreese
The fusible links are in the engine compartment....

The fusible links are in the engine compartment. A '77 only has one, between the battery and the Jeep. Connection to the battery is at the starter solenoid, where the (+) battery cable from the...
Forum: General FSJ Tech 01-06-2021, 10:45 AM
Replies: 20
Views: 496
Posted By tgreese
You've got it backwards. Closed is on, open is...

You've got it backwards. Closed is on, open is off.

If you lose the ground to the dash, the CVR will go closed, ie constant over-voltage to the gauges. This is bad.

The IC conversion (7805 or...
Forum: General FSJ Discussion 01-05-2021, 06:19 PM
Replies: 9
Views: 321
Posted By tgreese
Ooh. Pushes all my buttons. The 4-door Cherokee...

Ooh. Pushes all my buttons. The 4-door Cherokee was the down-market version of the Wagoneer from 1977 on IIRC. A manual transmission (T-15 or T-18) and the 258 is a nice combo - no need to replace it...
Forum: General FSJ Tech 01-05-2021, 06:06 PM
Replies: 20
Views: 496
Posted By tgreese
'77 is Motorcraft, according to my books. And a...

'77 is Motorcraft, according to my books. And a mechanical (!) regulator. Probably more reliable than Motorola, but still not in the same league as the unitized Delcos.

The Motorolas have rectifier...
Forum: General FSJ Tech 01-05-2021, 06:01 PM
Replies: 4
Views: 168
Posted By tgreese
Don't know for sure, but that seems right. The...

Don't know for sure, but that seems right. The tail lights change too, from disks with the early beds to tall and thin with the later beds. I'd guess the disk tail lights (which are the same lens as...
Forum: General FSJ Tech 01-05-2021, 02:13 PM
Replies: 12
Views: 270
Posted By tgreese
Do you have the TSM? It will tell you about stuff...

Do you have the TSM? It will tell you about stuff like this. https://www.rockauto.com/en/moreinfo.php?pk=2018280&cc=1183272&jsn=379

There is a '79 and '81 TSM at the Tom Collins site free to read...
Forum: General FSJ Tech 01-05-2021, 01:48 PM
Replies: 20
Views: 496
Posted By tgreese
What pulses? The gauge readings? The...

What pulses? The gauge readings? The headlights?

If the truck runs, I would leave the ignition alone for now. First make everything work like it's supposed to, then start modifying.

If the dash...
Forum: General FSJ Discussion 01-05-2021, 10:52 AM
Replies: 14
Views: 414
Posted By tgreese
I can't make much sense from your pictures....

I can't make much sense from your pictures.

Sorry for causing trouble - but I suggest you trace through all the hoses and make a picture/diagram of where everything goes. The device under the hood...
Forum: General FSJ Tech 01-05-2021, 10:40 AM
Replies: 3
Views: 136
Posted By tgreese
The 258 radiator is a different size from the V8...

The 258 radiator is a different size from the V8 radiators, and may be hard to find. The core support only fits the six cylinder size radiator.

When I repaired the radiator in my J10, I took it to...
Forum: General FSJ Discussion 01-05-2021, 10:27 AM
Replies: 26
Views: 592
Posted By tgreese
If it bounced randomly, it might be a loose wire....

If it bounced randomly, it might be a loose wire.

If it acts like it on a timer, (roughly) a second high, a second low, repeat, it's got to be the load of the CVR pulling the meter down.

Also,...
Forum: General FSJ Discussion 01-03-2021, 12:51 PM
Replies: 26
Views: 592
Posted By tgreese
Should not bounce. Should show a steady 13.5...

Should not bounce. Should show a steady 13.5 volts or thereabouts.

The battery potential (chemical potential) is 12.6 volts. The voltage regulator in the alternator senses the battery voltage and...
Forum: General FSJ Discussion 01-03-2021, 12:17 PM
Replies: 26
Views: 592
Posted By tgreese
How are you measuring the voltage? The ammeter...

How are you measuring the voltage? The ammeter won't tell you the voltage.
Forum: General FSJ Discussion 01-03-2021, 11:14 AM
Replies: 26
Views: 592
Posted By tgreese
The 7805 mod only affects the oil, fuel and temp...

The 7805 mod only affects the oil, fuel and temp gauges. An '85 should have an ammeter, not a voltmeter. Read about the ammeter bypass in a sticky thread at the top of the tech forum.

Looks good!...
Forum: General FSJ Discussion 01-03-2021, 11:07 AM
Replies: 14
Views: 414
Posted By tgreese
Are you sure the aux tank feeds the main?...

Are you sure the aux tank feeds the main? Typically there is an electric valve that switches between. The switch controls the valve, and the valve controls the gauge. If you hear the solenoid clunk,...
Forum: General FSJ Tech 01-02-2021, 06:19 PM
Replies: 6
Views: 238
Posted By tgreese
Generally if there is a 12A, 12B etc. they are...

Generally if there is a 12A, 12B etc. they are the same circuit, but on one side or the other of the bulkhead connection. Yes, circuit number, in my description "wire number." You can also look at...
Forum: General FSJ Tech 01-02-2021, 06:09 PM
Replies: 20
Views: 496
Posted By tgreese
Note that the dash cluster requires a ground....

Note that the dash cluster requires a ground. Disconnected from the dash steel, the cluster is floating. The gauges' voltage regulator cycles on and off to "regulate" voltage. Without a ground, it...
Forum: General FSJ Discussion 12-31-2020, 05:57 PM
Replies: 26
Views: 592
Posted By tgreese
No apostrophes! The single quote on the PC seems...

No apostrophes! The single quote on the PC seems ok, but the apostrophe on your phone (?) wreaks havoc.

Ha! Glad I could help!
Forum: General FSJ Tech 12-31-2020, 05:51 PM
Replies: 6
Views: 238
Posted By tgreese
Look here -...

Look here - https://oljeep.com/gw/elec/GW_wiring.html

Also, after you gain some experience, you can usually look at a wire and see what gauge it is. Maybe keep some samples to compare with?

I...
Forum: General FSJ Discussion 12-31-2020, 05:29 PM
Replies: 26
Views: 592
Posted By tgreese
Great. You realize you can turn the headlight...

Great. You realize you can turn the headlight switch knob to make the dash dim/bright?

Yeah well ... the odometer reading is what it is. Any change to that is dishonest. Save your receipts if you...
Forum: General FSJ Discussion 12-31-2020, 05:28 PM
Replies: 26
Views: 592
Posted By tgreese
[quote=Waggymcgee]I have functioning gauges, all...

[quote=Waggymcgee]I have functioning gauges, all interior lights, heater controls, turn signals, voltmeter, and she shuts off when shes supposed to! Did everything to make sure no car-b-ques in my...
Forum: General FSJ Discussion 12-31-2020, 05:28 PM
Replies: 26
Views: 592
Posted By tgreese
[quote=Waggymcgee]I have functioning gauges, all...

[quote=Waggymcgee]I have functioning gauges, all interior lights, heater controls, turn signals, voltmeter, and she shuts off when shes supposed to! Did everything to make sure no car-b-ques in my...
Forum: General FSJ Discussion 12-31-2020, 05:27 PM
Replies: 26
Views: 592
Posted By tgreese
[quote=Waggymcgee]I have functioning gauges, all...

[quote=Waggymcgee]I have functioning gauges, all interior lights, heater controls, turn signals, voltmeter, and she shuts off when shes supposed to! Did everything to make sure no car-b-ques in my...
Showing results 1 to 25 of 500

 
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