7mge or 7mgte oil pump
- Thread starter indio84
- Start date
rakkasan said:
Realy? Thank god. I have been so worried since my rebuild because I used a newer pump off my N/A motor. Then I read somewhere that the werent the same and I was just picturing rodknock all over again from a weak pump.
You can, but it won't help.
The relief doesn't open until 40 psi, so any time you have less than 40 psi now, you will still have less than 40 psi after shimming. Shimming only helps @ high RPM.
Jonez, I heard that new pumps are all GTE. this could be misinfo, but worth looking into.
The relief doesn't open until 40 psi, so any time you have less than 40 psi now, you will still have less than 40 psi after shimming. Shimming only helps @ high RPM.
Jonez, I heard that new pumps are all GTE. this could be misinfo, but worth looking into.
Dr. J, i see that the drive gears have a different height, but is the number of teeth/radius the same? i dont see how the height of the drive gear would affect the output of the pump.
It's not the drive gears that are different it's the internal Pump Gears, the GTE's are longer so more volume per revolution.
Damn! So I guess when I get a chance I should check if its a turbo or N/A pump.
"Jonez, I heard that new pumps are all GTE. this could be misinfo, but worth looking into."
If this is true then its a good chance I have one from the gte
"Jonez, I heard that new pumps are all GTE. this could be misinfo, but worth looking into."
If this is true then its a good chance I have one from the gte
oke look i'm going to turbo the 7mge that i have but i just wanted to know if there was a good reason for me to change te oil pump becuase the 7mge oil pump thta i have is in good condition so if i shim it will it help becuase i don't want to buy something if it wasn't really necesary
drjonez said:
Well F*ck me running, I have a feeling that I've just been hosed. I guess I need to check the one I just bought. :icon_mad:
Sorry for passing BS.
Adjuster
Supramania Contributor
Yes, it's all about the gear height, not teeth count or anything like that on the 7M pumps.
NA is shorter.
Has less flow per the same engine rpm.
Actually looked at making a custom pump, using two sets of gears. the shaft should hold up to turning them. Only problem is you have to pin the new drive gear to the old, and the new idler gear would be supported by the custom top cap. (We thought about making a spacer that would add the extra space to hold the extra set of gears. Problem is you either replace the idler gear shaft with a new longer one (best option, and add a relief in the top cap to help stablize it.) or you attach another idler gear shaft to the top cap.
In the end, decided not to do this for a few reasons.
1) The oil pump drive shaft coming off the cam belt is pretty thin when your running a stroker with pauter rods. (Had to turn it down to clear the rods.)
2) The bronze drive gear is a unknown when turning two sets of pump gears.
We were not sure it would hold up, and I did not want to have either fail and lose a motor due to some R&D project when I was pretty sure a good new 7MGTE pump would work fine.
NA is shorter.
Has less flow per the same engine rpm.
Actually looked at making a custom pump, using two sets of gears. the shaft should hold up to turning them. Only problem is you have to pin the new drive gear to the old, and the new idler gear would be supported by the custom top cap. (We thought about making a spacer that would add the extra space to hold the extra set of gears. Problem is you either replace the idler gear shaft with a new longer one (best option, and add a relief in the top cap to help stablize it.) or you attach another idler gear shaft to the top cap.
In the end, decided not to do this for a few reasons.
1) The oil pump drive shaft coming off the cam belt is pretty thin when your running a stroker with pauter rods. (Had to turn it down to clear the rods.)
2) The bronze drive gear is a unknown when turning two sets of pump gears.
We were not sure it would hold up, and I did not want to have either fail and lose a motor due to some R&D project when I was pretty sure a good new 7MGTE pump would work fine.
Fuzz420
Are U Here 2 take My Baby
I have a new "ge" pump, it would be nice if all the new pumps were gte but i doubt it. If nebody would like to check heres the part number:
15100-42031
My invoice is of april 20th of this year
15100-42031
My invoice is of april 20th of this year