do i need professional rebuild - JeepForum.com
 
LinkBack Thread Tools
post #1 of 10 Old 12-20-2008, 12:36 PM Thread Starter
pscj5
Registered User
1972 CJ5 
 
Join Date: Nov 2008
Location: Va Beach VA
Posts: 142
do i need professional rebuild

okay could i rebuild this to make it run right or do i need to break down and buy another or just pay for rebuild, i am pretty handy with a wrench and have rebuilt a ford straight 6
WARNING THIS VIDEO IS THE ENGINE RUNNING ITS PRETTY LOUD SOUNDS LIKE MACHINE GUN



If you get stuck it better be broke or you didnt hit it hard enough
pscj5 is offline  
Sponsored Links
Advertisement
 
post #2 of 10 Old 12-20-2008, 02:36 PM Thread Starter
pscj5
Registered User
1972 CJ5 
 
Join Date: Nov 2008
Location: Va Beach VA
Posts: 142
okay i know it needs a rebuild, but could i do it myself since it runs or what do you think

If you get stuck it better be broke or you didnt hit it hard enough
pscj5 is offline  
post #3 of 10 Old 12-20-2008, 03:01 PM
dirt4900
Registered User
1994 XJ Cherokee 
 
Join Date: Oct 2008
Location: west IL
Posts: 119
all depends on how much you know. if you think you can do it and take the chance have at it. as for myself i am no master mechanic when it comes to motors but i think i know quite a bit, and id still have it done professionaly. that way you know its done right and if not most places usually have some small warranty that goes with it if anything happens. just my 2 cents.

JEEP - Just Empty Every Pocket
dirt4900 is offline  
post #4 of 10 Old 12-20-2008, 04:26 PM
BESRK
GROUND POUNDER
 
BESRK's Avatar
1980 CJ5 
 
Join Date: Nov 2002
Location: Newport News, VA
Posts: 12,285
It is almost impossible to say without knowing you personally. I built my first engine (SBC 350) when I was 18. All I did was read "How to Build Your Small Block Chevy" and I had no problems. Engine rebuild went fairly well and the engine ran strong.

If you've never been "deep" in an engine before (ie.. dropped a crank, pulled a piston, installed a timing chain, installed an oil pump..etc.), you may want to have someone around who has built an engine or two to give you a hand. However, if you feel pretty confident about your mechanical ability you can probably swing it with a good "rebuild manual" or two.

BTW.. that engine sounds pretty bad

'80 CJ5 w/AMC360, T176, D44 w/Detroit 4.56, RE 4" YJ lift and 35s..


Lower 2

Guardrail

Down Schoolbus

Slickrock Tellico

Save

Crozet

More Crozet
BESRK is offline  
post #5 of 10 Old 12-20-2008, 05:49 PM
Smtty58
Registered User
1990 YJ Wrangler 
 
Join Date: Aug 2007
Location: Monson, Mass.
Posts: 723
Even if you rebuild it yourself, parts will need to be sent to a shop for inspection and machining. You could ask them how much extra they would charge for assembling it for you. You might even get a warranty that way.

90 YJ, 4.2, AX-15
86 K1500, 305, 700R4

Western Mass. 4x4
Smtty58 is offline  
post #6 of 10 Old 12-20-2008, 06:58 PM
Jeep2003
Registered User
1946 CJ2A 
 
Join Date: Dec 2007
Location: vestal, ny
Posts: 221
you sure its a bad. have you tried to track down the knock? Perhaps the fan hiting the shroud or oil pan hiting the crank. could be somthing simple like that. I think if it was making a niose that loud internally it would only be a few seconds till it blew its guts out

1967 cj-5, 1946 Willys Jeep cj-2a, 1982 911sc turbo look, 1958 impala, 1987 k5 blazer
Jeep2003 is offline  
post #7 of 10 Old 12-20-2008, 07:46 PM
Saltydawg1
Member
1983 CJ7 
 
Join Date: Nov 2008
Location: NY
Posts: 163
Sounds like that engine has a rod knocking.
I wouldn't run it any further, you're only compounding the corrective work that will be needed.

Pull the oil pan and check out the rod and main bearings.
Saltydawg1 is offline  
post #8 of 10 Old 12-20-2008, 09:47 PM Thread Starter
pscj5
Registered User
1972 CJ5 
 
Join Date: Nov 2008
Location: Va Beach VA
Posts: 142
i am pretty sure its comin from in the block but if its a rod knock or something do i still need a total rebuild

If you get stuck it better be broke or you didnt hit it hard enough
pscj5 is offline  
post #9 of 10 Old 12-20-2008, 11:33 PM
Saltydawg1
Member
1983 CJ7 
 
Join Date: Nov 2008
Location: NY
Posts: 163
The only way to tell everything an engine is going to need is to tear it down and inspect it.

When a rod starts knocking you might as well plan on some machine work and a complete rebuild. Your bearings will be shot and you've probably done some damage to the crankshaft journals. This will require a machinist to fix.

You might get away with not doing any head work but that's entirely dependant on its condition.
Saltydawg1 is offline  
post #10 of 10 Old 12-21-2008, 10:07 AM
Vanmantraveler
Registered User
1981 CJ5 
 
Join Date: Nov 2008
Location: Florida
Posts: 70
Lets all have a moment of silence for this motor....

81 CJ parts all over the Garage
Vanmantraveler is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
DIY vs Professional texasdave Jeep CJ Forum 17 05-19-2009 09:03 AM
What do you keep in a rebuild?? Skerr Jeep CJ Forum 4 09-15-2008 09:16 PM
Rebuild 78treehugger Jeep CJ Forum 4 06-05-2008 08:59 AM
What do I really need to rebuild my SBC 350? CJman77 Jeep CJ Forum 2 06-05-2008 06:02 AM
CJ tub rebuild paraman72 Jeep CJ Forum 5 06-07-2005 10:06 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome