I'm doing the pan, RMS, and OFA adapter seals, and figured since I'm there I might as well stick in a new pump. Don't really know if I need one really but since I'm in there...


I've read to get a High Volume pump instead of a regular one.
Anyone have suggestions for a new one I could get at a parts store?

I was also wondering if I'll notice any increase in oil pressure with a Hi Volume pump.
I'm running 40+ to 48 on highway.
Warm idle is 37, hot around 22-28.

May be pertinent and why I wonder about the current pump:

When I got the Jeep it never went below 40 hot or cold. Ran mostly around 50-60+ on highway and would drop down to 40-45 after an hour or so on road. Satyed there hot idle too.
I did switch from Fram Tough Gaurd to Purolator filters and always ran Valvoline MaxLife 10w30 synth blend.
A while back I switched to 5w30MaxLife (synth blend) once, 10w40 (dino) then back to 10w30MaxLife ever since just seeing if a different visc. would help my lifter tick at start up.
Seafoam and a TB scrubbing cured that though, so I went back to 10w30MaxLife.
Pressure change occured after the switches.
Could I have just cleared out crud (build up of what not from using same brand a lot i.e. detergents etc.) around the sensor that was giviing a false high?

Either way I need a recommendation for a good replacement.
Should be able ot go full synthetic now too!

 

From what I've read most people recommend standard pumps. Something about the HV pumping so good it might suck the pan dry before the oil refills it.

From my own experience, any weak spots in the gaskets will become leaks from the increased pressure. Got to admit though......my engine compartment was rust free

 

stock pump is fine.. and your pressures are good now...10psi for every 1000 rpm is rule of thumb... so if you are pumping 48 warm... and it does not go higher.. then you are good for 5000 rpms with no issues...

 

Looks like I'll go with the regular one then. Thanks all.

Soooooo NAPA has one by Sealed Power for 82.49

Shuck's has one by Melling for 70.99 (I seem to recall someone on here recommending this but maybe saying NOT to get it too. Anyone?)

Baxter's has one by Sealed Power for 132.99. The SAME one as NAPA
they said the hi volume one is actually cheaper.
I love Baxter's but that HUGE price dif makes me question ever calling them again. rant off

So it looks like Sealed Power or Melling .

Whatcha think?

 

Hi,
I am the tech manager for Fram filters, also just a regular mechanic that owns a shop specializing in engine repair. You should replace the pump and pickup if your going to remove the pan, use mellings or trw pump. There is no reason to install a high pressure or high volume oil pump! Jeeps have a poor oil pressure sending unit/guage. They are very inaccurate and can fluctuate. I have seen many Jeeps in my shop with sludgy oil pump pickups. I would replace the pump and pick up with a stock pump and pickup, then hook up a manual oil pressure guage if you want accurate oil pressure readings. A high volume oil pump will cause excessive HP loss, less fuel economy, greater chance of leaks. they are for race cars, trust me.
Good luck