Oil Pump weak?

[samhain]

OK I have been battling this for awhile now. I bought a rebuilt motor off of craigslist.
1990 Talon TSi AWD
Installing the motor went fine. I primed the oil pump before installing the T-belt had oil all the way up to the turbo connection @ the head. Right off the bat the car has low oil pressure both sending units confirm this idiot light blinking and pressure gauge very low. I can look in the valve cover and see oil squirting onto the cams so I am getting some oil. Also have valve clatter a little. Increasing the rpm's doesnt really raise the pressure at all. I did drive it around the block and it runs great. Tore it apart again thinking they forgot to block the oiling holes for the balance shafts but all was good bearings were installed with no holes at all. The oil pump itself is pretty hard to turn especially considering there is no longer a balance shaft hooked up to it. I am wondering if there could be something wrong with the oil pump to where it is just weak and not making good pressure?

 

[dsmcurse]

i just had this happen to me. the stubby shaft that replaces the balance shaft on the oil pump itself was a low quality china made BS eliminator kit. the stupid stubby shaft was waering into the aluiminum housing of the oil pump. i cleaned the hole in the oil pump where the stubby shaft comes through with wd-40 and memorie cloth. then i took the original balance shaft that was there and cut it so i had a homemade stubby shaft. of corse there is a hole in it because oil travles down the inside of that balance shaft. you can either tap threads and cap that hole off with a bolt, or do what i did and weld the hole closed. cutting the mitsu shaft and creating a homemade stubby shaft is alot better than trusting some made in taiwan BS elimanator kit for a couple of reasons. 1. its a mitsu part made of better quality. and 2. its already been ridding in that hole, its already worn into the housing. my own opinion is that its never a good idea to put somethin else in thats gonna create "a new wear mark"

 

[#40Fan]

What was wrong with your old thread? http://www.dsmtuners.com/forums/newbie-forum/353385-botched-balance-shaft-elimination.html

 

[samhain]

Just started a new thread because I felt the topic title was misleading since I found that the balance shaft elimination was not the problem. This weekend I pulled the oil pump off my old motor put it on the new motor and all is fine the car is running great!