1985 CJ-7 “Time Traveler” journey continues - Page 5 - JeepForum.com
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post #61 of 80 Old 08-03-2019, 11:26 AM Thread Starter
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My chassis guy suggested he could build a 9” for the front, incorporating Dana 60 components on the ends. He is a hard core rock crawler hence the overkill. I’m not planning on using my Jeep in such a hard core manner, but I definitely want it stronger and more capable than stock. This Jeep is a continuation of the 1986 CJ-7 I bought new, and then sold in the early nineties. It had a 2.5” lift with 33” mud radials when I sold it, so my current Jeep will be better.

My Time Traveler will have a better engine (I6 stroker with fuel injection) bigger and better axle assembly’s (Dana 44 & Ford 9” with SOA) and bigger tires (34” or 35”), but it’s going to ride smoother and be just as reliable, as my original CJ-7.


1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #62 of 80 Old 08-03-2019, 05:05 PM
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Quote:
Originally Posted by Axhammer View Post
I took the plastic tote box out of the back.
I believe these are fairly rare. Definitely something you should hang on to or sell it here on the forum. I would have some level of interest if it's in decent shape and I will be in NC in November for my wedding.
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post #63 of 80 Old 08-06-2019, 07:58 AM Thread Starter
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The 4.0 is getting disassembled for the stroker build.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #64 of 80 Old 08-09-2019, 09:01 PM Thread Starter
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The 4.0 is down to a bare block & head. I see room for improvement in the head, time to break out the grinder.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #65 of 80 Old 08-17-2019, 10:21 AM Thread Starter
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I replaced one WW arm, re-clocked both and installed two new blade assemblies from Napa on Wednesday. On the way home from work on Thursday I got caught in the rain about half way home, 15-20 minutes in light to moderate rainfall, skirting a thunderstorm. With no doors or lift-gate installed the outside of my left leg got a little wet, and the airflow over the hardtop brings water into the back opening at a steady flow. The WW’ers worked good, no problems, I’m glad I finally got around to getting them operational. The linkage system between the motor and the arms is a little sloppy, but that is to be expected on a 34 YO vehicle. I’ll fix all that when I take it apart to paint it all, so it is what is is for now.

So far I have removed the bumper mount tow bar, and the rock guards from the lights up front. I have replaced and rigged the WW’s so they park a little better than before, more like it was when new. I have the front wheels aligned and the steering works good, it’s easy to drive, it just took a little getting used to because it is really sensitive. If you are cruising on a back road and turn the wheel a little, it changes direction, no slop, just sensitive, but it’s all good. I also replace the hood latches, the old ones were rusty chrome, and they squeaked pretty bad, very annoying. The new ones are stainless steel, China specials. My 1986 CJ-7 had silver hood latches, I guess SS will do for now.

My first “0630” head I took to the machine shop was cracked, but my buddy gave me another one. I’m hoping to pick it up next week, having been cleaned, checked for cracks, and resurfaced. I’m going to do some port work to it before taking it back to have the new valves installed. I’ll be ordering my Kit from Russ Pottenger soon, so my 4.7 stroker build is moving along.

Does anyone know whether or not my automatic transmission will hold up to the power of a small block, and 35” tires? I’m pretty sure it is a torque flight, but I’m not sure which model. Didn’t they install two different TF auto’s?

Anyway, that’s my update for now.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #66 of 80 Old 08-18-2019, 10:19 AM Thread Starter
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After doing some internet searching, I have some information and opinions to sort through, concerning automatic transmissions in CJ-7’s. AMC used the TF-904 behind four cylinder models, and TF-999’s behind six and eight cylinder model CJ-7’s. The 999 is designated a medium duty transmission. The TF-727 is a strong transmission, comparable to a TH-400, both of which are more than needed behind a small block, or 4.7 stroker (little engines). Some consider the 999 as strong as a GM TH-350. I know a 350 can be modified or strengthened to hold up to moderate power, more power than a 4.7 stroker or mild SB will ever make (my opinion). The 999 vent needs to be modified if you plan on getting into deep water or mud, so I’ll do that mod eventually. The 999 should hold up well behind my 4.7 stroker, as it is similar to a mild small block V8, in power output, and that’s where AMC used it from the factory. I’ll event go through the 999 and upgrade where needed to suit my needs. For now I need to get the 4.7 up and running in my CJ-7 in front of the 999 as it is, stock suspension, axles and 31’s, so I can get a good comparison on power level of a 4.7 stroker. If the 4.7 stroker falls short, I’ll be looking at a AMC 360 build, but that’s probably not going to be necessary after talking to Russ, and my buddy who is running a low buck 4.6 stroker in a lifted YJ on 33’s. So that’s the plan, a fresh 4.7 stroker in my Jeep as it is, soon as I can get it machined, port the head myself, assemble myself, installed myself, hopefully within the next couple months or so.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #67 of 80 Old 08-21-2019, 07:31 PM Thread Starter
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My 4.0 block has been cleaned, NDI’d and rough bored. The 0630 head has been cleaned, NDI’d and shaved true. I brought it home to start the porting process. It’s not something I’m looking forward to doing, but it won’t be too bad once I get started. It’s such a dirty messy job, but someone’s gotta do it, may as well do it myself.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #68 of 80 Old 09-08-2019, 08:46 AM Thread Starter
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I picked up my intake manifold yesterday, one of the key parts for this 4.7 Mopar in-line six engine build.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #69 of 80 Old 09-09-2019, 06:43 PM Thread Starter
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I picked up my 258 AMC crankshaft today. It has the 2.5” snout and probably needs to be machined undersized. I spent a couple hours working the exhaust ports on the 0630 head I’m using too. It’s coming together slowly.
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1985 CJ-7 258/auto Red paint, white Hardtop
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post #70 of 80 Old 09-09-2019, 06:48 PM Thread Starter
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The backside of the thrust bearing.
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1985 CJ-7 258/auto Red paint, white Hardtop
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post #71 of 80 Old 09-10-2019, 07:03 PM Thread Starter
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I dropped of my crankshaft today. My block wasn’t ready, but I picked up my engine kit while I was there.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #72 of 80 Old 09-13-2019, 05:34 PM Thread Starter
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I picked up my Mopar 4.0 block and AMC 258 crankshaft from the machine shop after work today. The block has been cleaned & inspected for cracks. It was bored .06” oversize, and honed to size for my forged pistons. Cam bearings are installed, it’s ready to be reassembled, I think. I’m not sure if I need to clearance it for using aftermarket roller rockers & pushrods? That’s OK, I’ll be working on the head before I do anything with the short block anyway. The crankshaft didn’t need to be cut, so it got polished and is still within specifications for standard bearings. I also took my head to the shop so I could get some questions answered concerning the port work I’m doing & the oversize valves they are going to install. So, it is coming together slowly. I am really looking forward to building, and driving this little Mopar I-6 Engine. I might have to put it on a Dyno to see the results, and I’ll definitely make some passes at the drag strip in the street class.
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1985 CJ-7 258/auto Red paint, white Hardtop
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post #73 of 80 Old 09-14-2019, 08:50 PM Thread Starter
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I did a little more grinding in the exhaust pockets on my 0630 head. I have the basic shape I want in there, now I need to smooth and then polish the entire ports. Then I can move on to the intake pockets, ports & port match to my intake. After all that I’ll work the chambers, then it’s off to the machine shop for machining the valve spring pockets for my new valves @ 1.7 IH, and then a valve job.

Disregard the attached picture, it’s not mine.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #74 of 80 Old 09-14-2019, 08:58 PM Thread Starter
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My work.
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1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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post #75 of 80 Old 09-15-2019, 06:59 PM Thread Starter
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Spent a little more time on the exhaust.

1985 CJ-7 258/auto Red paint, white Hardtop
2017 JKU SAHARA Silver paint, Black Hardtop
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