Melling M-328 Oil Pump

lwr_ · 03-11-2010, 07:48 PM

For those who are expiriencing the dreaded lifter tick and low oil pressure problem with your 2.9, buy and install the new high volume pump from Melling. Most parts houses do not know what you are talking about, but convince them that the part does exist and that the part number is M-328. It will cure your ills!!!!!!!

My pressure had been droping down to 5psi at idle after thermal breakdown. And at cold start up was getting the lifter tick until lifters pumped up after a few minutes. Now pressure is steady at 15-20 psi at idle and over 50psi at 25K rpm. Cold start lifter tick is GONE!!!

No need to take out the distributor as the book calls for. Take off the dist. cap and the knock out plate on the firewall just above the dist. Disconnect the motor mounts and jack up the motor (be safe and use block and stands). Drop the pan and slide to the side. There will be just enough room to remove old pump and install new one. It is tight, but with patience you will get er done.

trail B2 · 03-11-2010, 11:41 PM

That was the fix for the subarus that I used to drive.My 4.0 has a nice tick too but my oil pressure is still pretty high.

Ranger#1 · 04-05-2010, 09:07 PM

does it fit the 4.0

multiranger · 04-07-2010, 04:50 PM

Quote:

Originally Posted by Ranger#1

does it fit the 4.0

Melling has a HVOP for the 4.0.. I put one in mine a few months ago. The part number is the same for the 2.9 M328. I got mine on ebay really cheap compared to the parts stores... It is true no one knows what they are yet..

Doom's Day Custom · 04-05-2010, 09:22 PM

I was reading the other day that having a HV pump that you need a higher capacity oil pan because it pull more oil than the pans holds

Jason · 04-06-2010, 02:13 AM

If the return journals are clean, meaning your engine isn't a sludge monster, you don't need a larger pan.

03-11-2010, 07:48 PM	#1
lwr_ New Member Join Date: Jun 2009 Year: 1989 Bronco II Posts: 3 Rep Power: 0 iTrader: (0)	Melling M-328 Oil Pump For those who are expiriencing the dreaded lifter tick and low oil pressure problem with your 2.9, buy and install the new high volume pump from Melling. Most parts houses do not know what you are talking about, but convince them that the part does exist and that the part number is M-328. It will cure your ills!!!!!!! My pressure had been droping down to 5psi at idle after thermal breakdown. And at cold start up was getting the lifter tick until lifters pumped up after a few minutes. Now pressure is steady at 15-20 psi at idle and over 50psi at 25K rpm. Cold start lifter tick is GONE!!! No need to take out the distributor as the book calls for. Take off the dist. cap and the knock out plate on the firewall just above the dist. Disconnect the motor mounts and jack up the motor (be safe and use block and stands). Drop the pan and slide to the side. There will be just enough room to remove old pump and install new one. It is tight, but with patience you will get er done.
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03-11-2010, 11:41 PM	#2
trail B2 Member Join Date: Jan 2009 Location: North Eastern Ca. Year: 1986 Make: ford Model: bronco 2 Engine: 4.0 Class: 4x4 Used For: 4x4 and DD Posts: 1,179 Rep Power: 11 iTrader: (0)	That was the fix for the subarus that I used to drive.My 4.0 has a nice tick too but my oil pressure is still pretty high. __________________ We make A living by what we get, We make A life by what we give.http://www.therangerstation.com/foru...lies/yahoo.gif
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04-05-2010, 09:07 PM	#3
Ranger#1 Member Join Date: Sep 2008 Location: lake havasu Year: 1990 Make: ford Model: ranger Engine: 4.0 Class: 4x4 prerunner Used For: jumping over the dez Posts: 1,361 Rep Power: 0 iTrader: (0)	does it fit the 4.0 __________________ chrome stacks, air horns, fender flares, and massive off set tires = mexican...its been scientifically proven __________________ http://www.therangerstation.com/foru...ct+first+truck http://s220.photobucket.com/albums/d...mcmahon/truck/
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04-05-2010, 09:22 PM	#5
Doom's Day Custom Member Join Date: Sep 2009 Location: nj Year: 1996 Make: ford Model: ranger xlt 4.0l v6 Engine: 4.0l Class: 4x4 Posts: 851 Rep Power: 9 iTrader: (2)	I was reading the other day that having a HV pump that you need a higher capacity oil pan because it pull more oil than the pans holds __________________ CHARGE $5 FOR WHINING IN THE FORUMS Laws are only used to stop the honest person!!! If woman don't find you hansom ,then they should atleast find you handy!!!!
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04-06-2010, 02:13 AM	#6
Jason Member Join Date: Aug 2007 Year: (formerly) 200 Make: Ford Model: Ranger XLT Used For: She's gone. I am diesel huntin'! Posts: 3,579 Rep Power: 22 iTrader: (0)	If the return journals are clean, meaning your engine isn't a sludge monster, you don't need a larger pan. __________________ Scary FACT. 50% of all marriages last forever.....
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