5SFE Motor Question - Toyota Nation Forum : Toyota Car and Truck Forums

***Mister_Perkins*** · 10-03-2010, 06:20 PM

Hey guys, been a while since i've posted anything on this forum!!.

Anyhow, heres my story:

Started hearing a rapping noise and it sounded almost like the Rod bearings or Main bearings were going bad. So I decided to check the oil pressure at idle and warmed up to normal temp. I hooked into the oil pressure switch location and it was reading 0Psi. So I thought to myself, "Thats not good at all..." Anyways, I started tearing into it and found out that the noise I was hearing was coming from the waterpump, and I replaced it with a new one. While replacing that, I decided to change the oil pump and pickup as well since I wasnt getting good pressure ( I pulled the oil pump from a known good working motor i had sitting around ). Hoping for the best. Well when I had my oil pan off, I noticed I had a small amount of shavings in the bottom of the pan. Not good. I ended up replacing the rod bearings and main bearings while i had everything apart (without checking clearance between the bearings and crank with plastigauge). I noticed that the 3rd main bearing (wider one) was where all my shavings were coming from. Cleaned the crank up checked for scratches and everything looked good.

I put everything back together, pulled all the ignition cables out and cranked the motor over to circulate the oil a little bit. Started it up with everything hooked up as far as timing goes and it started up right away and seemed to run great. I was thinking, "Bonus.. it sounds good!". I thought, I might as well check the oil pressure now and checked it when the motor was still cold. Started up and was at 25Psi but once it started heating up it dropped to 0psi. Now I was getting a little aggravated, so I decided to change the oil filter Relief Valve with a known good valve too thinking that maybe the valve was screwing with the pressure somehow. No luck.

Do you guys have any ideas of what the problem could be ? Thanks in advance. Sorry for the long story but I figured it would be better if you knew the whole story of whats been done already.

Also, the car has 212,558 miles on the motor and it is a 5sfe out of a 1992 toyota camry LE.

Brandon

Also, Here is a few pictures I took:

In this picture you notice the shavings and then that stuff underneath it. It is actually JB-Weld and the previous owner "patched" the pan. Was replaced with a good oil pan.

SexieWASD · 10-03-2010, 06:52 PM

I assume that the balance shafts were just taken out to check the crank, then put back correct?

***Mister_Perkins*** · 10-03-2010, 06:54 PM

balance shaft was removed to change the main bearings and rod bearings. Once the bearings were removed / replaced the engine was put into TDC and then the balancer was also Zero'd out and re-installed.

SexieWASD · 10-03-2010, 06:56 PM

ok, was just checking because it's oil feed wasn't blocked off or anything in the pics.

***Mister_Perkins*** · 10-03-2010, 06:57 PM

Yeah that picture was taken when I removed the balancer, and rod bearings. Right before I started pulling the caps off the crank to check / replace them

***JohnGD*** · 10-04-2010, 12:42 AM

If the previous owner got into things, then there may be other things wrong. I would measure the rod and main bearing oil clearances for starters. If the clearances are good, then at least you can focus in other areas.

Marshall Engines rebuild these engines without the balancer assembly. They say the design is defective and some owners here do the same and plug the oil hole. Maybe worth a try?

***Mister_Perkins*** · 10-05-2010, 12:36 PM

Quote:

Originally Posted by JohnGD

If the previous owner got into things, then there may be other things wrong. I would measure the rod and main bearing oil clearances for starters. If the clearances are good, then at least you can focus in other areas.

Marshall Engines rebuild these engines without the balancer assembly. They say the design is defective and some owners here do the same and plug the oil hole. Maybe worth a try?

Well I purchased the vehicle from a used car dealership before it got looked over and put on the lot. It was sitting out behind the dealership. Not sure who the previous owner was though. I am going to have to just start by removing the pan and balancer again and checking the clearances. I am guessing that there is more than .002 between each cap.

I've never heard of removing the balancer.. How do they think that it is defective? I'm just curious. Would a defective balancer cause the vehicle to not have correct oil pressure?

Also, I have two other camry's besides the one thats having the oil pressure and I tested those as well and the pressure was way higher (50psi) warm at idle. The one camry is a 93 and the other is a 95 with the newer model motor (different ignition system and an added knock sensor. Transmission is also different)