Yes, you can use a 5VZ-FE oil pump on a stock 3VZ-E.

The only problem that you might possibly run into is the lower timing belt cover. The stock 3VZ-E cover won't work and the 3VZ/5VZ-FE lower cover will have issues with the belt driven fan bracket. The 3VZ/5VZ-FE lower cover might possible be able to be trimmed to work though.

I'll look at things in the morning and come up with what exactly needs to be done to make that work.

 

Updates? With me rebuilding my bottom end, this would really help. Thanks!

 

Yes, you can use the 5VZ oil pump on the stock engine, but you will also have to get a hydraulic tensioner and a lower timing belt cover from the 5VZ engine. This is also going to cause issues with the cover mating to the middle cover on the stock engine (the part that the fan mounts to....not sure of the proper name). Since the lower cover is plastic, I'd say that it could be modified to work. My suggestion is get a junk pump and cover to do some test fitting.

 

You must be talking about the waterpump cause the oil pump is pretty much a non issue in the back.

Using the 5vzfe waterpump is good to cause you can then use th larger tstat from the 5vzfe. The fan bracket could be bypassed if you ran an electric fan such as the taurus one. In that case couldn't you just use all the covers from the 3vzfe?

 

You are right in the fact that the 3VZ-E and 5VZ-FE oil pumps are the same from the mounting surface. Also, the waterpump are almost exactly the same as well. There are, however, obvious differences between the waterpumps and oil pumps. Changing the waterpumps in my opinion is not needed and would not net any real advantages.

Now back to the oil pumps which were the original question. As I mentioned, you can use the 5VZ-FE oil pump on the 3VZ-E block if you change over to the hydraulic tensioner (the bracket is built into the 5VZ oil pump and is pretty much a "have to" if you stwitch.

To answer the lower timing cover response, yes, it is needed if you have seen the two pumps side by side. As I also said, I believe that you could make the lower 3VZ-FE or 5VZ-FE cover work. I would stick to the 3VZ-FE cover as it does not have a hole for the crank position sensor in it that you would need to plug. The reason that you can't just get the full front covers from the 3/5VZ-FE is because that without swapping the heads, they WILL NOT work. The cam pulleys do not fall in the same locations on the SOHC and DOHC heads. It just simply couldn't be done easily.

On a side not, I happen to have both a 3VZ-E and 5VZ-FE oil pump sitting here in front of me and the pumps are exactly the same. I am refering to the gears and rotor parts. There are 10 lobes on the gear and 11 lobes on the rotor of each oil pump. So if there is an issue with pressure at idle speed, it could be that your oil pump on your engine is going bad and not an issue with the manufacturering or design of the pump itself.

 

This thread is the reason that got me to join Yotatech. Bump.


Any updates???

 

wow!! very interesting thread......i'll be rebuilding soon and i think i'll run this idea by the co-builder..

 

Anything yet? My 3.slo isn't getting any faster, or any less miles on it...


Please come back Dan

 

I finally parked mine. It was running, but the headgaskets were leaking oil and water, the pilot shaft on the tranny was severely worn out and the transfer case was shot. I'll let you know what I'm gonna do....after I start doin it. I have another project to get finished first.

 

is it running, if so what did you end up for hp and torque?

p.s. awesome thread, got me excited.

 

this is all great info about the potential for the 3vze to upgrade. what are the costs to do all of this. I have the option now to pick up a extra 3vze being taken out of a 93 runner(putting in a stroker 308 or something).
I have 90 runner. would it be wise to pick this engine up and rebuild it.

What happened to the guy doing the turbo for the 3vze?

what is the differnce in the 3vze and 3vzfe? how can you tell.

 

The 3vzfe was put in early 90's camerys, they are totally different except the crank.

 

Bump for giving my 3.slow a little bit of hope.........

 

BUMP

 

so i take it this build didnt work out or someone got into some different priorities?????
hell this is the cheapest route so far for me, we have all kinds of used toyota parts flyin around out here

 

I know this is 4 years old, but I just saw it on the board and was highly interested. So, I am subscribing. Haven't read it all yet, so I don't know how it ends up. I like the suspense of not knowing. Don't tell me the ending please.

 

i think it ended by this guy not finishing the job and us knowing no more than we did when it started
but im sure someone tried this, wonder how it went, im about to pull my engine and i think im gonna do cams, bigger valves, port and polish and a header system, this autta be good for about 25 horses and thats all i want

 

So dan what about mounting the accessories? Mainly AC and the alternator? Fuel rails, injectors and such? Also did the 3vzfe have a distributor like the 3vze?

 

How does the story end?

 

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