It is currently Sun Oct 12, 2025 5:58 am

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: CRD post reassembly pre-lube question
PostPosted: Tue Sep 22, 2015 10:05 am 
Offline
LOST Member

Joined: Mon Mar 01, 2010 5:22 pm
Posts: 456
Location: North Kingstown, Rhode Island
Okay all, I've got a question.

I'd taking apart a CRD that has been sitting for a few years. The oil system needs to be thoroughly flushed.

I know that when reassembling gassers, there is a way to run the oil pump from a drill to force oil through the oil passages to pre-lube the engine.

Is there a way to prelube the CRD in a similar fashion? Anyone whose taken one of these beasties apart understands why you don't want to needlessly crank the engine over when partially unassembled...

So, how best to pre-lube?

_________________
"Gunner": 2007 Jeep Grand Cherokee Limited CRD GDE ECO tune Bought 01Apr16 (71K miles)
Image

If you're in New England and need your KJ TB done, PM me.

Retired:
Tractor: Dark Khaki '06 CRD Sport, GDE ECO & Trans Tunes, 2.5" lift + 245/75r16. - Sold 27Apr16
Ghost: Silver '06 KJ CRD Limited, bunch of goodies done - Sold 18Apr16


Top
 Profile  
 
 Post subject: Re: CRD post reassembly pre-lube question
PostPosted: Tue Sep 22, 2015 10:33 am 
Offline
Lifetime Member
Lifetime Member

Joined: Mon Jun 18, 2012 5:50 pm
Posts: 1195
Location: Central Indiana
I know when taking the top apart and replacing the rockers and lifters, I use Lubriplate assembly lube.

The only caveat being that usually this involves an oil change about 1200 miles into the procedure because the Lubriplate doesn't filter through the oil filter as well. Nor do most assembly lubes.

_________________
Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings


Top
 Profile  
 
 Post subject: Re: CRD post reassembly pre-lube question
PostPosted: Tue Sep 22, 2015 10:35 am 
Offline
LOST Addict

Joined: Fri Jun 22, 2007 11:43 am
Posts: 4962
Location: Green Cove Springs FL
The oil pump is driven directly off the nose of the crankshaft.
So there is no good way to do what you are suggesting.

If you have the valve cover off, you could coat the camshaft lobes with some engine assembly lube, but kinda makes putting the cover back on really messy.
You can also give the rockers and lash adjusters a good soak in engine oil before assembly.

Cranking the engine by hand might do what you want but is kinda hard to do once everything is assembled. Likewise, after assembly, you can pull the ASD fuse and crank the motor over using the starter. Which is something you will probably have to do anyway just to prime and bleed air out of the fuel rail.
With the ASD fuse removed, the engine will crank but not start.

_________________
U.S. Army Retired


Top
 Profile  
 
 Post subject: Re: CRD post reassembly pre-lube question
PostPosted: Tue Sep 22, 2015 10:48 am 
Offline
LOST Member

Joined: Mon Mar 01, 2010 5:22 pm
Posts: 456
Location: North Kingstown, Rhode Island
flash7210 wrote:
The oil pump is driven directly off the nose of the crankshaft.
So there is no good way to do what you are suggesting.

If you have the valve cover off, you could coat the camshaft lobes with some engine assembly lube, but kinda makes putting the cover back on really messy.
You can also give the rockers and lash adjusters a good soak in engine oil before assembly.

Cranking the engine by hand might do what you want but is kinda hard to do once everything is assembled. Likewise, after assembly, you can pull the ASD fuse and crank the motor over using the starter. Which is something you will probably have to do anyway just to prime and bleed air out of the fuel rail.
With the ASD fuse removed, the engine will crank but not start.


I did not know about that fuse. Thanks!

I want to be able to crank it long enough to force the oil through all the oil passages to potentially clear up any crud that may be residual. I suspect ample quantities of Marvel Mystery Oil will come into play.

_________________
"Gunner": 2007 Jeep Grand Cherokee Limited CRD GDE ECO tune Bought 01Apr16 (71K miles)
Image

If you're in New England and need your KJ TB done, PM me.

Retired:
Tractor: Dark Khaki '06 CRD Sport, GDE ECO & Trans Tunes, 2.5" lift + 245/75r16. - Sold 27Apr16
Ghost: Silver '06 KJ CRD Limited, bunch of goodies done - Sold 18Apr16


Top
 Profile  
 
 Post subject: Re: CRD post reassembly pre-lube question
PostPosted: Wed Sep 23, 2015 6:58 pm 
Offline
LOST Member

Joined: Sat Jun 29, 2013 4:42 pm
Posts: 405
Location: San Diego, CA
Image

This picture is upside down, and I can't remember which one os the oil pump, but if you were to remove the sprokect attached to the crank, you could potentially spin the oil pump by iteself. Theses are located just behind the front cover.

Mike

_________________
2005 Liberty CRD Limited
DIY Garage Remanufactured Engine with GDE Full Torque Eco Tune from mile zero.
ARP Studs
Cummins Lift Pump
Transgo HD2 Reprogramming Kit
DIY Rebuilt Tranny Pump
Suncoast Torque Converter
2nd Generation Fuel Head
Sears P1 Battery
Hot Diesel Solutions Thermostat


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 63 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group. Color scheme by ColorizeIt!
Logo by pixeldecals.com