Hey guys,

I'm rebuilding my 3.0L Engine. I'm a little concerned that the block I have might not be the right block. Can I get some of you experts to confirm this for me.

Take a look at this picture. From what I can tell, the gasket that comes with my brand new 89 Montero's Oil Pump will not seal. Do I have the wrong pump? Do I have the wrong block?

Shoot! I think it may be that the block I got came from a dodge Caravan configuration.

What do you guys think?

Hiya Jay... I'm 9 years past my 3.0L V6 rebuild, but I wanted to say "HEY!" We missed you buddy. I'm guilty of being rare to post around here myself the last few years, but its still great to see a "familiar face" from years gone by... <img src="/forums/images/graemlins/cheers.gif" alt="" />

Someone will be along shortly that can confirm or refute your fears. Hopefully the latter... <img src="/forums/images/graemlins/ignore.gif" alt="" />

I have rebuilt 2 of these, my last being a block from a 2000 caravan. Regardless of the block, if it is a 6G72 you should be able to mount a pump from the Gen 1 montero with the integrated oil filer mount with no problems. Are you sure you have the correct pump? Also, this seems obvious, but have you flipped that gasket around to see if you can get the mounting holes to line up? I admittingly have made mistakes like that before... Lol. If it is a motor from a caravan, the drivers side will have a oil filter mount that must be removed to mount the motor mounts.

Hi Phil,

Nice to see you here too. It's been a while. Too long actually. I think I still have some of Old Betsy's parts in my garage. I think it was either Electric Windows or Cruise Control set up. I can't remember now.

Hey reed81,

I thought about what you wrote last night and I wanted to show you some pictures because something isn't jive'n.

This first photo is a repost of the one earlier but I rotated it so its right-side-up. The second photo is to verify that I have th 6G72 engine you mentioned. The third photo is a photo of my repair manual showing the propper orientation of the gasket.

My gasket and the manual match up, but I think there might be something wierd about my block configuration. Does anyone else know about this?

Well, you got me too. I see that the gasket does not line up. Have you tried to line the gasket up to the pump and then mount the pump? Do the bolt holes for your pump line up to the gasket and the block? Obviously it would help if you remembered where you got the block, but I am confused because I have successfully transfered a caravan block. Answer me those few questions and I will try to research some of the other options. The 6G72 was put in tons of Mitsubishi, Dodge, and even Hyundai vehicles, perhaps the oil pump was drastically different for one of them.

Can you take a picture that doesn't have the sun glaring behind it? I am trying to see all of the gasket, and its making my eyes bug out. Worst case, go back to the parts store and request another gasket if they have it in stock and compare them...

I'm certainly not an expert. But FWIW, here's a picture I took of my 6G72 on the stand when I was working on it. This is from a '90 LWB.



steve

Hi everyone.

Hey StockRaider, Yeah that was a bad picture. I'll get a better picture posted sit tight...

Take a look below and compare my photo with stevec's.

Hey stevec, thanks for that picture. It totally cemented what I thought I needed to do. I took a picture and compared it to my engine configuration. There definetly are a lot of differences. Take a look at the images below.

Guys, what this boils down to is incompatibility. I now have decided that I'll have to take the enigne out from my old silver 1990 Montero and transplant it into my blue 89 Raider. Does anyone in Oregon need a donor car? Once I remove the engine, I won't have any need for the 1990 Montero. I'll have to donate it to the local junk yard unless someone wants to claim the rest of it.

Damn I wish I was closer. I'd help you with the silver one... <img src="/forums/images/graemlins/frown.gif" alt="" />

Late V6 Pump

Early V6 Pump

Looks like the V6 pump changed in 95 or so. At that point its the same pump as the 3.5.

Your block is probably a 95 or newer 3.0. You might get lucky and be able to use that pump and have everything else work OK. A quick look at the front pulley seems to say, that the motor got a new front cam pully system.

Never tried it...