International Full Size Jeep Association
Home Forums Reader's Rigs Tech Library Trail Stories FSJ-List
International Full Size Jeep Association  

Go Back   International Full Size Jeep Association > Tire Kickin' > General FSJ Tech

Reply
 
Thread Tools Search this Thread Display Modes
  #21  
Old 10-13-2020, 08:00 PM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Hahaha .. If I knew the ticking was OEM I could live with it!
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
  #22  
Old 10-13-2020, 08:08 PM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Ok I took the valve covers off and 6 or the 8 rockers seem to have a lot of side to side play. The rocker could be slapping the bridge arm? You can see in the picture the gap beside the pink dot. In the morning I will check lift using a dial.
I never fired it up with the cover off but all rockers had oil pooled in the right spot.

IMG_1490 by , on FlickrIMG_1491 by Colin McArthur, on Flickr
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
  #23  
Old 10-13-2020, 08:19 PM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,307
Run it with the valve covers off, will make a mess but you will be able to see, check and hear ticks.
Reply With Quote
  #24  
Old 10-22-2020, 07:55 PM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Took the covers off and ran it. Confirmed everything was getting oil.
Still could not figure out where the ticking was coming from.
Think I'm just going to pull manifold for some peace of mind.
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
  #25  
Old 10-23-2020, 04:42 AM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,307
While it runs with the valve covers off, take a wooden handle hammer and use it to put a little pressure on each rocker push rod side and see if the noise changes( using the wood on the rocker) to narrow down location before taking manifold off. I would then pull push rods out to inspect for them being bent. If all checks out then pull the lifter out of the hole and inspect cam lobe and if that checks out replace the lifter.
Reply With Quote
  #26  
Old 10-23-2020, 08:24 AM
SOLSAKS's Avatar
SOLSAKS SOLSAKS is offline
350 Buick
 
Join Date: Jul 25, 2016
Location: Benson. NC
Posts: 1,445
I have a similar ticking on my new 360 in the wagoneer

mine started one day a few months ago after I was being hard on the engine

....hard acceleration, etc,....

hope mine is the exhaust.

have not did a good inspection yet....

dave in NC
__________________
SOLSAKS - dave
1976 J-10 HONCHO Fleetside
1982 J-10 Fleetside
1988 grand wagoneer
2004 RUBICON jeep
Benson, NC
Reply With Quote
  #27  
Old 11-01-2020, 09:57 AM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Hello:
Ok big update here and some advice/ knowledge needed.
I took the valve cover off again and ran it. Confirmed oil coming out of every rod. After I shut it down. I found the culprit. Cylinder 6 lifter (closes to front) is the problem.
It is soft and will not pump up. I can push the rod in and out. Next I pulled the manifold to inspect the cam at the faulty lifter. I'm going to take a closer look later today. Is this considered a wiped cam lobe?
I hate waiting for parts and have a Comp Cam 260h and new lifters sitting on my bench. If I don't need them I will take them back. This rebuilt engine has about 500km on it. It did sit for a yr before I started it up. I did follow cam break in procedure. Primed with drill. Wiped cam? I also noticed the one port was very dirty full of carbon compared to the others. Thanks for all the help.

IMG_1588 by , on FlickrIMG_1587 by , on FlickrIMG_1579 by , on Flickr
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
  #28  
Old 11-01-2020, 11:35 AM
babywag's Avatar
babywag babywag is offline
out of order
 
Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,793
Generally if a cam lobe is worn the lifter bottom is worn as well.
Measuring lift would confirm if a lobe is starting to go.
It does look more "worn" than the other shown in the pic.

That port is the exhaust crossover, and will usually be "sooty", it heats the intake/choke tubes.
__________________
Tony
Reply With Quote
  #29  
Old 11-01-2020, 02:52 PM
wiley-moeracing wiley-moeracing is offline
350 Buick
 
Join Date: Feb 15, 2010
Location: arizona
Posts: 1,307
It is starting to go, improper break in oil and or missing cam pre lube grease. You can try and replace the one lifter and continue on and see what happens, it may be ok or replace all the lifters and do the same or change the cam and lifters now you have it this far apart and get it done since you already have the parts. It is up to you.
Reply With Quote
  #30  
Old 11-01-2020, 04:21 PM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Thanks for helping out. I think I'm going to try and replace the one lifter.
Put it all together and see what happens. That cam has around 300k on it.
If the cam goes bad in 3 months so be it. Replace the works if thats the case. Not trying to cut corners. Just dont want to throw money at parts that work.
Thanks again. Keep you posted.
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
  #31  
Old 11-02-2020, 09:07 AM
rang-a-stang's Avatar
rang-a-stang rang-a-stang is offline
Administrator
 
Join Date: Oct 31, 2016
Location: Camarillo, CA
Posts: 3,775
Keep in mind, if the cam does go you will be spreading metal flakes through your motor. If I were in your shoes I would probably replace the one lifter too but if the cam goes and you wipe the whole lobe, you will probably be doing another rebuild or throwing a hemi in your truck.
__________________
79 Cherokee Chief (passed CA smog check Sept 2020)
(Cherokee Build Thread)
11 Nissan Pathfinder Silver Edition 4x4
09 Mazdaspeed3 Grand Touring
Reply With Quote
  #32  
Old 11-02-2020, 09:22 AM
Rusty76 Rusty76 is offline
258 I6
 
Join Date: Jul 15, 2018
Location: Cochrane
Posts: 313
Valid point
Decisions
__________________
1976 Jeep Wagoneer
Rebuilt, 360, TH400, QT.
Still not running. Soon!
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help me diagnose this sound. posulli88 General FSJ Tech 34 07-26-2019 05:55 PM
Diagnose engine problems using starter Perfex General FSJ Tech 0 04-14-2010 03:51 AM
Ticking / rattling sound comming from front of engine Blake General FSJ Tech 7 08-22-2007 11:22 AM
Manifold leak? Exhaust valve? Please help me find the ticking sound!!!! PhatAssWJ General FSJ Tech 10 07-05-2007 08:06 AM
*** FIXED!! ***Think you're smart? Try fixing my ticking (long) PlasticBoob General FSJ Tech 9 11-12-2004 06:53 AM


All times are GMT -6. The time now is 05:03 AM.


Powered by vBulletin Version 3.5.4
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
corner corner