JeepForum.com - Reply to Topic
Thread: Sudden engine/ lifter noise Reply to Thread
Title:
Message:
Post Icons
You may choose an icon for your message from the following list:
 
 
 
   

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










  Additional Options
Miscellaneous Options

  Topic Review (Newest First)
11-24-2019 05:40 AM
Teddy2 interesting discussion. I have hear the same about zinc - it is good for older engines
11-21-2019 04:23 AM
HarryH3
Quote:
Originally Posted by juan_carlos__007 View Post
Zinc is a good lubricant, but it destroys catalytic converters. It is meant for non catalytic or racing applications.

Sent from my NX629J using Tapatalk
The details are far more complex than that. See https://www.hemmings.com/blog/2012/1...older-engines/
11-21-2019 04:11 AM
juan_carlos__007
Quote:
Originally Posted by HarryH3 View Post
Zinc was used as an additive in motor oils for years It was banned (or perhaps seriously reduced) by the gov't several years ago. Rumors of the lack of zinc killing flat tappet cams were out there, but I don't know how much trouble it really caused.
Zinc is a good lubricant, but it destroys catalytic converters. It is meant for non catalytic or racing applications.

Sent from my NX629J using Tapatalk
11-01-2019 08:35 AM
dtlh2oguru Ahhh. Snake oil...great idea I can probably find that at Wal-Mart. Thanks!
10-31-2019 01:27 PM
HarryH3 Zinc was used as an additive in motor oils for years It was banned (or perhaps seriously reduced) by the gov't several years ago. Rumors of the lack of zinc killing flat tappet cams were out there, but I don't know how much trouble it really caused.
10-31-2019 10:14 AM
99wjtx I believe I read somewhere that snake oil will do essentially the same thing. It might be worth looking into.
10-31-2019 09:42 AM
dtlh2oguru From everything I've researched zinc(zttp) gives a little better protection in minimizing friction. First time I've done this for my 4.0. But I'm probably going to treat my 4.7. And my 7.5l Ford
10-30-2019 01:39 PM
DBAR0341 I did add zinc to my last oil change and I still get the ticking. Not sure that it would have stopped the noise but it is supposed to be good for the engine.
10-29-2019 02:19 PM
GmanWJ Zinc treatment? I am unfamiliar with this. Can somebody explain it to me?
10-29-2019 10:31 AM
dtlh2oguru I've ruled out allthe silly stuff. I'm convinced I have a sticky lifter. Gave him a minor flush, oil change, upgraded the oil and filter and a zinc treatment. Purring right now . guess we'll see what happens once I get a few more miles on him. Thanks y'all.
10-28-2019 10:43 AM
11B-33T If it's exhaust leak related, do the 4.0s have the same heat shields above the exhaust manifolds like the 4.7s? OP may want to check those heat shields to see if any bolts have sheared off. As stated earlier, that exhaust leak will sound like a lifter tick until the engine warms up.
10-26-2019 11:18 PM
Mattyjm
Quote:
Originally Posted by Barber613 View Post
There is no way that Pennzoil will sludge you engine up real bad. This is bad information
It used to, but I'm talking 30 years ago. I can speak from personal experience that Pennzoil's amount of peraphin was documented. All northern oil had a lot of peraphin in it. It's great for guitar strings but terrible for engines. Ask me how I know....I'm a ChevyHead (hint there) from WAY back in the day. I've physically removed old Pennzoil and QuakerState sludge from engine heads with my bare, loving hands. Those every day engine oils worked well when you "burned the gunk out" on occasion, but weren't a sturdy commuters engine oil.

I took to southern and eastern based motor oils because of it through the years. Valvoline was my oil of choice for conventional use for a LONG time, BUT, these Jeep 4.0Ls need zinc and double detergent, NOT Seafoam...please....Seafoam was NOT a apart of the 4.0L design team. Durability, longevity, and everyday performance made the 4.0L i6 a very popular engine.

IF you don't think reliability went into designing and engineering the WJ, why are we still driving them as daily drivers almost 20 years later?
10-26-2019 01:10 PM
DBAR0341
Quote:
Originally Posted by Barber613 View Post
There is no way that Pennzoil will sludge you engine up real bad. This is bad information
I don't think so either, but like I said I'm going to change my oil soon anyway so... Best case the noise stops, worst case I am in the same position but with a different oil.
10-26-2019 10:44 AM
Barber613 There is no way that Pennzoil will sludge you engine up real bad. This is bad information
10-25-2019 09:22 AM
DBAR0341 I'll give mobil 1 a shot I'm due for an oil change soon anyway. The ticking is driving me nuts and I'm not even sure that it is a lifter issue. but after an oil change, I should be able to tell if there is a difference. I'm also considering trying seafoam and then driving like 300 miles before I change the oil. I've never used the stuff but a lot of people say it's good.
This thread has more than 15 replies. Click here to review the whole thread.

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

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