Oil Pump Help

[TYHOGG]

Here is a pick of my oil pump i just removed from the truck. It has the "m55" casted in it. Is this the defective melling oil pump?

 

[syclownz]

Re: Oil Pump Help

Here is the old pump VS. the new one. Look for the casting scar.

http://i16.photobucket.com/albums/b28/GOSFAST/PES Engines/Melling-SBOilPumps.jpg

 

[ffmeltdown]

Re: Oil Pump Help

Here is the old pump VS. the new one. Look for the casting scar.

http://i16.photobucket.com/albums/b28/GOSFAST/PES Engines/Melling-SBOilPumps.jpg

So is the "good" casting on the left or the right?

 

[dgoodhue]

Re: Oil Pump Help

The good casting is the one on the right.

 

[nallj92]

Re: Oil Pump Help

yes i would say you have the junk style pump

 

[sy#2921]

Re: Oil Pump Help

That is 100% the new junk casting. You can tell by where the nut rides and how the area necks down a lot smaller.

 

[TYHOGG]

Re: Oil Pump Help

Thanks for the replys guys i pruchased the Moroso high volume "heavy duty casting" #22111 today. man what a difference. the neck area is twice as thick not worrying about this one breaking.

 

[Windedv6]

Re: Oil Pump Help

Just check your pickup clearance on the HV Moroso pump. They are a longer pump.
You want a least 3/8" minimum pan topickup clearance.

John