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Search: Posts Made By: tgreese
Forum: General FSJ Tech 10-22-2020, 02:07 PM
Replies: 4
Views: 124
Posted By tgreese
Pahrump! Grew up in the LA area and went through...

Pahrump! Grew up in the LA area and went through the Owens Valley many times, on the way to Sierra/Tahoe destinations. Pahrump! Seen it on the map many times, and was delighted with the name when I...
Forum: General FSJ Tech 10-22-2020, 01:52 PM
Replies: 3
Views: 78
Posted By tgreese
Do not believe anything in the Haynes or Chiltons...

Do not believe anything in the Haynes or Chiltons books. They try to cover too many years, and are full of errors. Maybe useful for fluid capacities or other simple things. Also excellent doorstops...
Forum: General FSJ Tech 10-16-2020, 02:38 PM
Replies: 10
Views: 235
Posted By tgreese
https://www.nmr.mgh.harvard.edu/~reese/public_html...

https://www.nmr.mgh.harvard.edu/~reese/public_html/4350HighSpeedCircuit.jpg
You can see that the 4350 does not work like the other Motorcraft carburetors. The shape of the tapered metering rod...
Forum: General FSJ Tech 10-16-2020, 10:17 AM
Replies: 10
Views: 235
Posted By tgreese
You don't understand how a metering rod...

You don't understand how a metering rod carburetor works.
Forum: General FSJ Tech 10-15-2020, 02:29 PM
Replies: 10
Views: 235
Posted By tgreese
Hot rodders would modify the jets themselves back...

Hot rodders would modify the jets themselves back in the day. You can drill out the jets, or fill with solder and redrill. The only references I found online are for conventional Motorcraft jets for...
Forum: General FSJ Tech 10-15-2020, 10:19 AM
Replies: 10
Views: 235
Posted By tgreese
The 4350 is a metering rod carb, and it's...

The 4350 is a metering rod carb, and it's possible the holes in the jets are ca 200 thou. The metering rod taper blocks most of jet orifice. Parts book does not break out that part at all - part of...
Forum: General FSJ Tech 10-15-2020, 10:01 AM
Replies: 3
Views: 182
Posted By tgreese
Mmm. When you replace the factory wiring with an...

Mmm. When you replace the factory wiring with an aftermarket harness, you take all the understanding and debugging on yourself. Do you have a wiring diagram for the new harness? That the alternator...
Forum: General FSJ Tech 10-15-2020, 09:47 AM
Replies: 12
Views: 274
Posted By tgreese
Comes from the factory with a helpful rubber...

Comes from the factory with a helpful rubber bridge that keeps the left-right order straight. Would be easy to mix up without that.
Forum: General FSJ Tech 10-15-2020, 08:55 AM
Replies: 6
Views: 189
Posted By tgreese
The valves clattering indicates that you have...

The valves clattering indicates that you have zero oil pressure. IMO that's quite certain.

The pressure relief valve is a good place to start. If that's not it, you have to imagine how the pressure...
Forum: General FSJ Tech 10-14-2020, 05:20 PM
Replies: 14
Views: 340
Posted By tgreese
I repeat, there are lots of shops out there that...

I repeat, there are lots of shops out there that rebuild boosters for classic cars. Look to see if there is one near you.

If there was, I would hand carry my precious core to the shop for rebuild....
Forum: General FSJ Discussion 10-08-2020, 01:46 PM
Replies: 7
Views: 281
Posted By tgreese
Extensive research determined that the 0-7448...

Extensive research determined that the 0-7448 Holley 350 CFM model 2300 carb has a 1 3/16" diameter venturi, or 1.1875. The two most common Jeep Motorcrafts are 1.08 and 1.21.

Area of each venturi...
Forum: General FSJ Discussion 10-08-2020, 12:56 PM
Replies: 7
Views: 281
Posted By tgreese
The factory did not supply that info. You can...

The factory did not supply that info. You can guess from the CFM rating of similar carburetors and their CFM rating. Look at the venturi diameter of a Holley 350 CFM 2V and compare to the area of a...
Forum: General FSJ Tech 10-05-2020, 03:49 PM
Replies: 14
Views: 340
Posted By tgreese
I think that Tony gives good advice above. Save...

I think that Tony gives good advice above. Save your core.

If you don't want to go that way, there are lots of shops that rebuild boosters. As long as you have a core, check for a shop near you....
Forum: General FSJ Tech 10-03-2020, 09:15 AM
Replies: 9
Views: 366
Posted By tgreese
MTS makes a replacement tank for a 1979 that has...

MTS makes a replacement tank for a 1979 that has the fill holes on the front of the tank, like yours. However, it has the level sender on top, which is different. They suggest you call and talk to...
Forum: General FSJ Discussion 10-02-2020, 04:49 AM
Replies: 7
Views: 246
Posted By tgreese
Sorry, cut and paste error....

Sorry, cut and paste error.

http://earlycj5.com/xf_cj5/index.php?threads/headlights-relays-in-absurd-detail.142321/
Forum: General FSJ Discussion 10-01-2020, 09:35 AM
Replies: 7
Views: 246
Posted By tgreese
I wrote an article about DIY-ing it on a CJ site:...

I wrote an article about DIY-ing it on a CJ site: (dead link)
Forum: General FSJ Tech 09-30-2020, 07:19 AM
Replies: 8
Views: 156
Posted By tgreese
Do you have the block apart? I would be more...

Do you have the block apart? I would be more suspicious of the cam bearings than the lifter bores. As mentioned previously, wear there is not typically a concern.
Forum: General FSJ Tech 09-27-2020, 01:27 PM
Replies: 5
Views: 156
Posted By tgreese
Yes, drill rivets, replace with screws. Should be...

Yes, drill rivets, replace with screws. Should be threaded for 6-32 from factory IIRC.
Forum: General FSJ Tech 09-25-2020, 11:11 AM
Replies: 7
Views: 187
Posted By tgreese
If this were my Jeep, I would check and reseat...

If this were my Jeep, I would check and reseat all the grounds first. Strange behavior in these circuits can result from back-feeding of current through other parts of the circuit when the ground is...
Forum: General FSJ Discussion 09-23-2020, 02:33 PM
Replies: 10
Views: 325
Posted By tgreese
Die grinder is a good idea. Why that shape of...

Die grinder is a good idea. Why that shape of bit? I presume you dished out the weld with the lower corner of the cylinder.
Forum: General FSJ Tech 09-21-2020, 09:08 AM
Replies: 7
Views: 315
Posted By tgreese
IIRC the '73 TSM (first year for the QT!) gives a...

IIRC the '73 TSM (first year for the QT!) gives a recipe for Quadratrac fluid that is ND (non-detergent) 30W motor oil plus limited slip additive. Likely they dropped that from the TSM when AMC/Jeep...
Forum: General FSJ Tech 09-21-2020, 09:02 AM
Replies: 15
Views: 259
Posted By tgreese
I would shelve the Autometer gauge (unless the...

I would shelve the Autometer gauge (unless the seller will take it back) and run a mechanical gauge. You hear occasional horror stories about the lines breaking, but they have consistently worked...
Forum: General FSJ Tech 09-20-2020, 08:52 AM
Replies: 15
Views: 259
Posted By tgreese
The oil pump cover could be perfect, and you...

The oil pump cover could be perfect, and you could still have low oil pressure. Note that the oil gets thinner as the engine warms up. It also loses its multivis character as it gets old. Both of...
Forum: General FSJ Discussion 09-12-2020, 09:50 AM
Replies: 19
Views: 497
Posted By tgreese
Was that the question? Sorry if this is redundant...

Was that the question? Sorry if this is redundant to earlier posts - The Quadratrac shifts using a vacuum motor on the transfer case that shift into and out of emergency drive. This motor has two...
Forum: General FSJ Tech 09-11-2020, 08:37 AM
Replies: 11
Views: 362
Posted By tgreese
The last rebuilt AMC Motorcraft distributor I...

The last rebuilt AMC Motorcraft distributor I bought had a clearly rebuilt vacuum diaphragm. The builder pried open the can and replaced the diaphragm. This does no provide much hope that these...
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