Paul's 1984 CJ-7 Build Thread - Page 4 - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep CJ Forum > Paul's 1984 CJ-7 Build Thread

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed LineFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitClayton Off Road - Come see us at these events!

Reply
Unread 08-22-2011, 09:09 PM   #46
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
Some crappy pics....

imag0140.jpg   imag0141.jpg   imag0142.jpg   imag0143.jpg   imag0144.jpg  

VACJ7 is offline   Reply With Quote
Unread 08-22-2011, 09:10 PM   #47
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
more...
imag0145.jpg   imag0147.jpg  
VACJ7 is offline   Reply With Quote
Unread 08-23-2011, 08:24 AM   #48
MoC
Web Wheeler
 
MoC's Avatar
1986 CJ7 
 
Join Date: Jun 2008
Location: The otherside of your monitor...
Posts: 5,652


and the crowd cheers... Build It! Build It! Build It! Build It!
__________________
Under A Sun Thats See It All Before...
MoC is offline   Reply With Quote
Unread 08-23-2011, 06:00 PM   #49
haro504
Registered User
1979 CJ7 
 
Join Date: Jul 2010
Location: winchendon
Posts: 96
with your skid plate issue, i used a t150 with a 83 frame so i had the same missalignment issue. i bolted some 2inch channel steel to the frame and then bolted the skid plate to that. i used some 2 inch square tubing between the trans mount and the trans to compensate for the height drop. it will lower your ground clearance but with a 4 inch lift it dident bother me.
haro504 is offline   Reply With Quote
Unread 08-23-2011, 07:53 PM   #50
Jim1611
Web Wheeler
 
Jim1611's Avatar
1985 CJ7 
 
Join Date: Jul 2009
Posts: 5,195
Paul I'm anxious to see how the 258 turns out. Those are great engines. Over the years several companies have made great inline-6 engines. Ford had the 300 and Dodge had the slant-6, both were excellent and the AMC 258 is just as good, and in some ways even better. Get the carburetor issues they were prone to have sloved and a doo ignition system then the fresh overhaul and some go fast goodies and you'll have a long lasting engine.
Jim1611 is offline   Reply With Quote
Unread 08-24-2011, 10:57 PM   #51
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
I'm gonna need a ring compressor. Has anyone used one of the non-adjustable tapered compressors? Just reading various hot rod forums they say they are the best. http://www.summitracing.com/parts/SME-903780/

258 standard bore size is 3.75, correct? So if I am bored .040 over my bores should be 3.79? The closest "minimum" size is 3.78.... would that work fine? It will compress the rings down to 3.78 as it slides into a 3.79 bore?

I've read the adjustable ones can be a pain and break rings and I do not mind spending a little more to make my life easier. Plus it will be worth the money to me NOT to break a ring since I am a novice at this.
VACJ7 is offline   Reply With Quote
Unread 08-25-2011, 03:05 AM   #52
BagusJeep
Web Wheeler
 
BagusJeep's Avatar
1981 CJ7 
 
Join Date: Jul 2009
Location: Bali, Indonesia
Posts: 4,086
The difference in diameter between 3.78 and 3.79 diamater is 0.01" which in circumference (DxPI) is 0.032". The gap at the end of the rings will be theoretically closed by this amount compared to how they sit in the bore.

The end gap should be fairly small as it is a leak path. You would normally check this by seating a ring in the bore by itself and then checking with feeler gages how large that gap was. For this kind of application you may need:

Top Ring 0.010" to 0.015"
Bottom ring 0.010" to 0.019"

The change in gap will therefore be more than the end gap you are trying to achieve.

The above is all a bit rough but I am struggling to see how using this device will allow you to compress the rings when you have a smaller end gap.

I can see if you are churning out a number of these engines that this device is really quick and useful. The commonplace collapsing metal cylinder type is fine IMHO and infinitely adjustable. I have in the past when poor, imecunious, foolish and feckless used several blunt screwdrivers to compress it and ease it in. Never lost one yet.
__________________
BagusJeep lives in Bali, the Land of Temples.
With a Jeep every prayer counts.

1981 CJ7 258ci - Bagusjeep
1984 CJ7 258ci - Puthijeep
1981 J20 258ci - Gladys
BagusJeep is offline   Reply With Quote
Unread 08-25-2011, 05:24 AM   #53
keith460
Jeep. There's Only One
 
keith460's Avatar
1984 CJ7 
 
Join Date: Jan 2007
Location: Doylestown, PA
Posts: 4,504
Quote:
Originally Posted by VACJ7 View Post
I'm gonna need a ring compressor. Has anyone used one of the non-adjustable tapered compressors? Just reading various hot rod forums they say they are the best. http://www.summitracing.com/parts/SME-903780/

I've read the adjustable ones can be a pain and break rings and I do not mind spending a little more to make my life easier. Plus it will be worth the money to me NOT to break a ring since I am a novice at this.
Can't say I ever used one of those type of ring compressors from Summit Racing but I still have and use my adjustable one I bought from Sears in 1978 that I used on my first engine rebuild, a Chevy Big Block 396, and still use today. Never broke a ring but I always checked ring gap in the cylinder bores before putting them on the pistons as you should also. Sometimes you need to file the gap to achieve the proper gap and remember to stagger the ring gaps every 90° on each of the 4-5 rings on each piston.

__________________
.
1984 CJ-7 Renegade
__________________

Restoration Thread:http://www.jeepsunlimited.com/forums...d.php?t=434226
keith460 is offline   Reply With Quote
Unread 08-27-2011, 01:34 PM   #54
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
Spent some time of the frame and taking a break right now. Started working on the nuts that were still in tact. Drilled holes around each nut and then plug welded. I can't say it is the prettiest thing but I think it is stronger and hopefully not weaker!
imag0152.jpg   imag0153.jpg   imag0156.jpg  
VACJ7 is offline   Reply With Quote
Unread 08-27-2011, 02:06 PM   #55
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
Next up.... projection weld nut to replace busted nut. Plan is to cut slots for the projections, fish the nut in and weld. Hit the back side with copper weld primer.
imag0158.jpg   imag0159.jpg   imag0160.jpg  
VACJ7 is offline   Reply With Quote
Unread 08-27-2011, 04:30 PM   #56
MoC
Web Wheeler
 
MoC's Avatar
1986 CJ7 
 
Join Date: Jun 2008
Location: The otherside of your monitor...
Posts: 5,652
Whats your engine rebuilt time line now Paul?
__________________
Under A Sun Thats See It All Before...
MoC is offline   Reply With Quote
Unread 08-27-2011, 05:43 PM   #57
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
I'll probably start on it in Sept/Oct. I want to get the frame repaired, blasted, primed and painted before winter gets here.
VACJ7 is offline   Reply With Quote
Unread 08-27-2011, 09:03 PM   #58
rixcj
Web Wheeler
 
rixcj's Avatar
1979 CJ5 
 
Join Date: Jun 2007
Location: RI
Posts: 1,612
Your plug welds look like they got good penetration, Paul. A lot of guys would have trouble burning into the nuts through such a small hole. If the machine isn't set hot enough, or the welder is inexperienced, the weld will just rest on top of the hole, without penetrating down into the nut.

Nice job!

Rich
__________________
'79 CJ5, AMC 360, t-18/d20 twin stick, dana 30/amc20(Mosers), Edelbrock Performer intake, Holley 600, ps/pb, DUI HEI, 'glass tub/1pc. tilt nose, 33x12.50 BFG AT's.

There's a fine line between "hobby" and "mental illness".
rixcj is online now   Reply With Quote
Unread 08-28-2011, 10:46 AM   #59
Flabbymuscle
Registered User
1984 CJ7 
 
Join Date: Aug 2011
Location: Frederick, Md
Posts: 7
Western Maryland 84 CJ 7 rebuild envy!

Paul,
I appreciate your step by step accounting as you go. I've just purchased an 84 project myself. I'm compiling a parts list just to get her road worthy. One of the main questions I have for you and the group is: Where can I purchase some of the main body parts/panels in order to erradicate the rust? I'm looking into Quadratrack and Morris 4X4 sites, since they are the ones that seem to seel the main sections, but I'm not sure of the quality. Anyone have any suggestions/opinions?

I appreciate the input.
Flabbymuscle is offline   Reply With Quote
Unread 08-28-2011, 10:54 AM   #60
VACJ7
Hockey Rules!
 
VACJ7's Avatar
1984 CJ7 
 
Join Date: Jul 2008
Location: Northern Virginia
Posts: 3,759
Quote:
Originally Posted by rixcj View Post
Your plug welds look like they got good penetration, Paul. A lot of guys would have trouble burning into the nuts through such a small hole. If the machine isn't set hot enough, or the welder is inexperienced, the weld will just rest on top of the hole, without penetrating down into the nut.

Nice job!

Rich
Thanks Rich.... it is all machine (Hobart 187) because I am a novice welder!

Welding in the projection weld nut almost looks like I know what I am doing. I am pleased with the way it turned out.

Here is my poor man's third hand since I need both hands on the welding gun. I made a sort of helicoil from wire used to tie rebar. I threaded some all thread into it with the weld nut. Fished if up into the hole and through a bridge I made from some scrap. Remove the wire and thread another nut down onto the bridge drawing the weld nut tight to the frame and had at it. Worked well!
imag0165.jpg   imag0166.jpg   imag0164.jpg   imag0162.jpg  
VACJ7 is offline   Reply With Quote
Reply
Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.