Datsun Mini Truckin Homepage
Forum Home Forum Home > General > Tech Corner
  New Posts New Posts RSS Feed - Guide: 4 Cylinder L-Series Oil Pan
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Guide: 4 Cylinder L-Series Oil Pan

 Post Reply Post Reply
Author
Message
EzCruiser View Drop Down
Admin Group
Admin Group
Avatar

Joined: 12 Jan 2010
Location: NE-TN
Status: Offline
Points: 3201
Post Options Post Options   Thanks (0) Thanks(0)   Quote EzCruiser Quote  Post ReplyReply Direct Link To This Post Topic: Guide: 4 Cylinder L-Series Oil Pan
    Posted: 11 Sep 2013 at 10:42am
I was messing around and thought I would post up some of the different L-Series oil pans I have:

From left to right: L20B(W53) Pickup, L16 521 pickup, L20B(U67) Late 620
Back to Top
luckydevil View Drop Down
Junior
Junior


Joined: 25 Jun 2012
Location: H town
Status: Offline
Points: 95
Post Options Post Options   Thanks (0) Thanks(0)   Quote luckydevil Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2013 at 5:46pm
awe I wish I had this 6 months ago lol
Back to Top
Rusty View Drop Down
Admin Group
Admin Group
Avatar

Joined: 11 Jan 2010
Location: East Tennessee
Status: Offline
Points: 3247
Post Options Post Options   Thanks (0) Thanks(0)   Quote Rusty Quote  Post ReplyReply Direct Link To This Post Posted: 11 Sep 2013 at 11:50pm
Good stuff Ez. I didn't realize there was such a difference.
Back to Top
Tim Keith View Drop Down
Junior
Junior


Joined: 17 Oct 2011
Location: San Antonio
Status: Offline
Points: 82
Post Options Post Options   Thanks (0) Thanks(0)   Quote Tim Keith Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2014 at 2:22am
Does each oil pan need its own pickup tube ?  
Back to Top
EzCruiser View Drop Down
Admin Group
Admin Group
Avatar

Joined: 12 Jan 2010
Location: NE-TN
Status: Offline
Points: 3201
Post Options Post Options   Thanks (0) Thanks(0)   Quote EzCruiser Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2014 at 8:22am
That's a good question, I didn't compare the two outside ones.  I switched from the far left to the center one.  I switched to the respective pickup as well.  I do not remember the difference off the top of my head though..
Back to Top
smooth620 View Drop Down
Senior Member
Senior Member
Avatar
HAWK EYE

Joined: 20 Jan 2010
Location: By KuniaWalmart
Status: Offline
Points: 1968
Post Options Post Options   Thanks (0) Thanks(0)   Quote smooth620 Quote  Post ReplyReply Direct Link To This Post Posted: 24 Mar 2014 at 4:08pm
Originally posted by Tim Keith Tim Keith wrote:

Does each oil pan need its own pickup tube ?  


Yes.
If you were to drop in an L20b in a 521 you would use an oilpan and pickup from the 521.
I also learned when installing an LZ20 in my 620, had to use an L20 oilpan and pickup. Same thing when installing an LZ24.

When i helped Sanitys with his KA swap he had barely an inch of clearance from the car oilpan that was installed. Later found out he needed a Frontier oilpan.



Better to learn from other peoples mistakes than to make them yourself.-Anonymous

Back to Top
Gordo View Drop Down
Newbie
Newbie


Joined: 11 Apr 2015
Location: Texas
Status: Offline
Points: 28
Post Options Post Options   Thanks (0) Thanks(0)   Quote Gordo Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 2016 at 11:14am
Just some food for thought...
 
The stock L4 pan has very small volume for any high performance application.
Since I plan on turning mine to 8500, I had 3 choices to address this issue.
 
1) Do a dry sump system.
Negatives of this would be the expense (just a used pump will run $300), all the lines, fittings, hose, and a oil tank needed to do it.
Changing oil is an ordeal, due to all the lines.
Where to even fit the tank is an issue. Bed ?, cramed into the engine bay?
 
2) Run an an accumulator.
Plus side, accusumps pop up on eBay all the time for $100. Hardly any more lines than running just a cooler, so that cost is less than a dry sump by a bunch.
Negatives side, even at best, the largest (3 qt) only holds 1.5 qts.
 
3) Run an extended volume pan.
But....
None off the shelf for most Datsun Mini trucks, so it will need to be built.
On my 620, very little room for one.
Good point, they are cheap to do, if you can weld, and work with sheet metal.
 
 
 
 
I chose to go cheap, and then modify the cross member to accomodate it.
 
First task was to find a spare 620 pan to play with.
After a couple of months, found one for $40.
Then to lessen the amount of welding, searched for a existing deep pan that would come close to the sump of the stock pan.
Found that an extended vintage Hemi pan fit pretty close. Snagged a new one off eBay for $75 shipped.
 
Sat them down next to each other, and with many measurements off the underside of my truck, found where I had to cut each to mate up.
 
 
 
 
After welding the 2 halves together, added a windage tray.
 
 
 
And extend the pick up tube. Went to a larger screen from a Toyota Supra.
 
 
 
 
Then added an additional control damn, to keep the oil that comes down the left side (from driver's view, also known as 'SAE left') from following the crank windage.
 
 
And made a bolt-in crank scraper.
It is retained by 2 bolts on the end, and the pick up tube flange in the center.
 
 
If you look closely, you can see the 1/4" holes in both the windage tray, and the crank scraper for the dip stick to pass through.
 
And now the start of modifying the cross member to get the clearance for the new pan.
The center of the crossmember will be cut out, and this will be welded to it's ends, and extend around the front of the new sump.
Made of 2" x 1" x 1/8" wall rectangular tube.
 
 
 230
There will be additional bracing added, but the engine will need to be out first.
 
Total cost, with pans, and material, under $150.
Just a lot of fab time.
 
 


Edited by Gordo - 31 Jul 2016 at 11:25am
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down



This page was generated in 0.079 seconds.