XJ6 & XJ12 Series I, II & III 1968-1992

clumpy oil..

 
  #1  
Old 09-11-2014, 08:07 PM
Darrenmb's Avatar
Veteran Member
Thread Starter
Join Date: Oct 2010
Location: Orlando Florida
Posts: 1,714
Received 278 Likes on 182 Posts
Default clumpy oil..

Ever since my head gasket failure and subsequent repair, i have had had low oil pressure, not low enough to turn oil light on, but still way lower than it ever has been, around 20 psi max!! and lower at idle.
Oil that was taken out during head gasket replacement, was drained into a large pan so i could examine it, Which i didnt really get around to it just sat in garage (too much other stuff to do) anyways, i am about at the point to get her back on the road and was just fine tuning stuff.
I wanted to double check tension on timing chain for cams, so i took off front access plate and found the screen was almost totally blocked with clumped milky oil. (was cleaned during repair) I already knew i still had some of the contaminated oil in motor and just figured i would cycle through a few oil changes in quick succession.

After seeing the clogged screen, i decided to check out the oil i had never thrown away , as i was pouring it into jugs through an old strainer, it was so clumpy that i could physically pick them up as if they were grease!

Ok that leaves me one option, clean out my oil pan and pickup screen, now, I know in order to drop the pan i have to swing crossmember forward, Lots of work, so....... is there anything that anyone knows of that i can pour in to oil that may break down the remaining goop? so i can just change it out?
Im open to any and all opinons here, i really dotn want to drop crossmember if i can avoid it, ( wife wants to be able to park her car back in garage)

Thanks in advance.

Darren
 
  #2  
Old 09-11-2014, 09:22 PM
Veteran Member
Join Date: Mar 2014
Location: Tehama County, California, USA
Posts: 17,025
Received 3,433 Likes on 2,680 Posts
Default

Any time I ever saw milky, chunky oil it was contaminated with coolant. There is nothing I know of to break up the chunks. You need to find where the water is coming from because that's just not normal.

Doubtless not what you wanted to know, and I hope I'm wrong, but that's my experience for what it's worth.
(';')
 

Last edited by LnrB; 09-11-2014 at 09:24 PM.
  #3  
Old 09-12-2014, 09:32 AM
Darrenmb's Avatar
Veteran Member
Thread Starter
Join Date: Oct 2010
Location: Orlando Florida
Posts: 1,714
Received 278 Likes on 182 Posts
Default

you are correct, as i stated, i had head gasket failure, and now need to get remainder of clumps out as they are plugging pickup. (best i can tell) if possible without pulling pan!
All clumps are old, i no longer have coolant leak, pressure holds steady at 13psi for 2 days! so now its just matter of cleaning up what was leftover!!!
 

Last edited by Darrenmb; 09-12-2014 at 09:34 AM.
  #4  
Old 09-12-2014, 04:10 PM
plums's Avatar
Veteran Member
Join Date: Feb 2011
Location: on-the-edge
Posts: 9,731
Received 2,117 Likes on 1,585 Posts
Default

If you are a gambling man, you could try idling for an extended period with 25 percent ATF after draining off sufficient oil to allow for the ATF.

Drain hot and change the oil filter afterwards. And possibly repeat the procedure.
 
The following users liked this post:
LnrB (09-12-2014)
  #5  
Old 09-12-2014, 04:20 PM
manwich66's Avatar
Senior Member
Join Date: Nov 2013
Location: Nanaimo,B.C. Canada
Posts: 212
Received 155 Likes on 85 Posts
Default back in the day...

back in my marine mechanic days,we used to use a product called butyl-cellusolve.pour it in,run motor,drain gunk!

cheers,Jim.
 
  #6  
Old 09-12-2014, 04:53 PM
Join Date: Feb 2010
Location: Adelaide Stralia
Posts: 19,480
Received 5,764 Likes on 4,138 Posts
Default

I'm with Plums.

Done that many, many times, and as long as you have a good dose of common sense it should do no harm.

Mostly the contamination is on the "venting" side of business, so timing cover, front vent, etc. I have not seen that clumping as bad as you are describing, but I would doubt the oil pick up is clogged with it. Thats where the "gambler" bit comes in.
 
The following users liked this post:
LnrB (09-12-2014)
  #7  
Old 09-12-2014, 05:02 PM
plums's Avatar
Veteran Member
Join Date: Feb 2011
Location: on-the-edge
Posts: 9,731
Received 2,117 Likes on 1,585 Posts
Default

to make up for the risk at the oil pickup strainer i would add the atf and let it sit for a good 48 hours first before starting the idle process ... or start and let run for only a few minutes to mix the atf/oil and then let sit before the real idling process. patience is a virtue here.
 
The following users liked this post:
LnrB (09-12-2014)
  #8  
Old 09-13-2014, 05:52 AM
Join Date: Feb 2010
Location: Adelaide Stralia
Posts: 19,480
Received 5,764 Likes on 4,138 Posts
Default

Yep,

I call it "drinking time", as it clears the head, and makes rational thinking easier.

If the ATF scares you too much, use a simple Diesel oil, as they are very high in detergents.
 
  #9  
Old 09-13-2014, 07:35 AM
Join Date: Jan 2014
Location: Delaneys Creek, Australia
Posts: 23,736
Received 4,533 Likes on 3,448 Posts
Default

Originally Posted by Grant Francis View Post
Yep,

I call it "drinking time", as it clears the head, and makes rational thinking easier.
Grant, that is the best part of working on stuff. Apart from a great outcome after a major job.
 
  #10  
Old 09-13-2014, 09:18 AM
Veteran Member
Join Date: Jul 2012
Location: Walnut Creek, California
Posts: 5,709
Received 1,935 Likes on 1,563 Posts
Default

Why not run tests? You have some clumpy oil. split it into sample containers. Add the marine product to one, ATF to another and diesel to the remaining one. see which works best.


Resolve any doubt by "biting the bullet". Low oil pressure is not good, and eventually, you will pay a price.


Not to mention the angst factor preventing real enjoyment of the car.


Odd, product, though???


Way back when, I was skipping along at about 65 on the Golden State Freeway in my vintage 55 Dodge V8 powered pickup. suddenly, the temp guage pegged, the OP guage went to 0, and the engine quit!!!! My boss was with me!!!! We coasted into a service station. Driveway oil change, added water, used their booster to crank the engine, and away we went for home about another 5 miles. Just clear water at the bottom of the sump. I didn't use antifreeze, merely an inhibitor package in that mild climate.


So, it must be the glycol that merges with the oil to make the clumps, I guess???


Oh, the polysphere V8 got an in the frame over haul and returned to service, better than ever.


Carl
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Sonspit
S-Type / S type R Supercharged V8 ( X200 )
21
10-25-2015 10:46 PM
Maaden
General Tech Help
3
09-21-2015 05:27 AM
Darrenmb
XJ6 & XJ12 Series I, II & III
11
11-21-2014 04:33 PM
rfarmery
XJ6 & XJ12 Series I, II & III
2
08-30-2014 01:02 AM
jn_lego
X-Type ( X400 )
20
04-28-2010 11:21 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread
Quick Reply: clumpy oil..


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: