jimoshel

There are several threads here that describe how to eliminate the load-sensing proportioning valve. As I posted just yesterday (or maybe the day before), IMHO replacing the MJ front metering block (it is not a proportioning valve on the MJ) with an XJ proportioning valve is a VERY bad idea. To understand why, you have to understand how the XJ proportioning valve works. In the XJ proportioning valve, fluid to the rear brakes is routed through the forward part of the valve body. Inside that, there is a spring-loaded plunger with an o-ring seal on a piston. The spring is VERY strong, and until the brake fluid pressure gets high enough to overcome this spring, there is NO braking to the rear wheels. Once the pressure gets high, the plunger moves and the rear brakes come on. This is why XJ rear brakes typically last through two or three replacements of the front pads -- the rears never do any work in normal driving. But the rear of an XJ has a full roof, rear seats, a lot of glass, and a tailgate hatch. There's a fair amount of weight on the back wheels. The rear wheel load in an empty MJ, by comparison, is very light. In normal conditions you won't notice a difference with the XJ proportioning valve because the rear wheels are doing anything, but under panic conditions the rear wheels could lock up unexpectedly. That's "not a good thing." Of course, if you correctly bypass the MJ height sensing proportioning valve you'll have full braking power to the rear wheels all the time, and that can also lead to premature rear wheel lockup under panic conditions. Being an olde pharte who learned to drive decades before we had proportioning valves, I can live with this because at least it's predictable, where the operation of the XJ proportioning valve is not. (The XJ valves also clog up. My '88 XJ has had no rear brakes for four or five years, but it's driven only locally so I haven't made a priority of fixing it.) For those who can't handle that, the Wilwood adjustable proportioning valve for the rear wheels is the way to go. Do NOT use an XJ proportioning valve. IMHO it's an exceptionally stupid design. This is the most sensible thing on the rear brake subject I think I've read since joining CC.

$20 plus shipping.

Hey Pete. Whatever they quoted you on the price I'll do for half that. And give you a choice of Anesthetic, pain killer. Jack Daniels or Johnny walker. :brows:

It's been a fun morning. Gave the guy $75 for the car. Drug it into town to the shop of a '50's oldsmobile collector, restorer, nut. He gave me $300 and removed every piece of chrome that was on the car. Plus the dashboard. Then ran it across the scales, with the diesel engine still in it. for another $223. It was for the best. :yes:

The '89 steering column I removed at the gear box. Still had the compression shaft on it. I thought about removing the '86 the same way. Don't know why I went the way I did. At the time it just seemed the way to go.

Neighbor's got a '59 olds with the GM 350 diesel. Tried for an hour to get it started. It turned over OK but wouldn't fire. I think it wasn't getting fuel. It's been sitting for 10 years. Or more. Just looking at it I think it's to big and heavy for a MJ swap. I didn't try to hard to get it to run. I figured if I got it started and he heard it run it would jack the price up. I can probably get it for a $100 or less. He just wants it gone. Anybody got any experience with these? Opinions? :dunno:

Just got thru swapping out the steering column in a '86 XJ. Swapped a '89 into it. GEEZ but that was fun,,,,NOT!! Took about 6 hours. 1/2 hour to undo all the electrical plugs and connections and mounting bolts and redo them. 5 1/2 hours to get the steering shaft back into the Ujoint. I separated them at the Ujoint directly in front of the firewall. :fs1: Everything works OK now. Never again. I'll scrap the vehicle first.

Clean them up real good first. Wash with soap and water. After thoroughly drying, a coat of wax.

I would love to get my hands on something like that myself.

IIt's easier to work with. Can be bent around sharp curves easier. Won't catch fire. I have got a 4'X8' 3/32" sheet of veneer that I've been eyeballing. We'll see. :thumbsup:

Photo Shop pics by Geonovast. 30 March 2013 - 01:14 PM And my favorite WELL, DAM,,I did it.

Received some very nice photo shop pics from Correy awhile back. Somehow, somewhere they got misplaced and I just found them this AM in the testing,,1,,2 section. Would like to figure out how to post them here, in this thread.

Holy crap!! Was going thru my old stuff deleting everything and found this. Don't know how it got 'misplaced' but it was. Just now found, and read it. Sorry Corry. Dern good job on the PhotoShop. The Yellow one is an exact match for my '77 J20. Any way gave me a couple ideas. Now get 'er done. Once again I apologize and damn good job. Thank you. Jim

I'm going to go look at a 1999 Pontiac Montana, 3.4 engine with 33,000 miles. Will it bolt up to the 60* 2.8 trans? Will the transverse mount kill the deal, or can it be worked around?

The mountains will be there for many years to come. You;ll only play football in high school once. If you can make it, would love to have ya.

How many members would be interested in making a run in the Salida, Leadville area the last week end in July? We'll pin down which trail and area later when we get more input.

Gee. Not sure about that. These MJ'S are kind a technical. Takes a skilled, experienced genius to figure one out. The biggest problem usually is finding someone that knows how to pop the hood. :hmm:

X3

Hayden Pass is farther South, Leave US50 at Coaldale, over the Sangre De Cristo's into Villa Grove on US285. South of Salida. Hope every body enjoys the drinking water at Taylor Reservoir. My father in law and I drilled all 5 wells there back in '67 for the forestry service. Fishing was great. He also drilled the wells at Turquoise Lake in '64. I only helped him with the one on the East side of the lake. I was still in the service and could only help him for one week. while on leave.

OK! :thumbsup: :bowdown:

There are several trails that can be run needing only decent tires. No 4WD. Hayden Pass, Phantom Canyon and Medina Pass come to mind The biggest problem in having a state meet n greet is location. Denver area having the most people would be the logical place but inconvenient for some of the folks in the West, SW area. Salida- Leadville area would be more central plus have plenty of trails available. Would be nice to work something out and have it.

Last week Pueblo hosted the NSRA annual show. Haven't seen that many old cars since i was a kid. Only they weren't old cars then.

PM sent

He needs to wrap those tail gate chains. Keep them from rattling and rubbing the paint. Other wise,,,good show. :thumbsup:

88*? Want to borrow my parka?