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How to: Replace Oil Pump

Ok guys. I recently bought a blue top because I tore my stock motor up. I read here and there that in order to do the swap correctly (no engine lights thus able to pass inspection) the oil pump from a US motor has to be used due to the crank position sensors. I wanted to do somewhat of a write-up to show people that swapping the oil pumps is not too difficult.

H23A
H23A

Remove spark plugs.
spark plugs

Remove valve cover and middle cover.
valve cover

Set TDC
TDC

TDC

TDC

Remove crank pulley bolt. I used this tool but a good impact works too.
crank pulley tool

Pretty ghetto I know, but it worked!
crank pulley

crank pulley

Remove under drive pulley and plastic cover.
removed crank pulley

Remove balancer belt.
balancer belt

Remove timing belt (I went ahead and removed the tensioner since I was going with a manual tensioner).
timing belt

Use a screwdriver or something to keep balancer in place.
balancer

Remove balancer gears.
balancer gears

Remove oil pan, oil pick up and oil pump.
oil pump

Pic of the USDM oil pump in place (good idea to use new seals and gaskets!).
oil pump

Pic of the oil pick up (new gasket).
oil pump

Reassembly (new water pump).
oil pump

Crank positioning sensor.
Crank positioning sensor

USDM (left) JDM (right)
pulleys

Replace oil pan.
oil pan

I had to modify this bracket from my SH motor to get it to fit.
bracket

Everything back in place and manual tensioner installed.
oil pump and manual tensioner

Put the rest on opposite of removal. When I cranked it the only engine light I received was P0505. I cleaned the IACV and bled the coolant. Reset the computer and it hasn't come back on since. It's also a good idea to use honda bond on the oil pump / oil pan.

Hope this helps someone. If I have any typos please excuse me. I'm having a few celebratory drinks. Cheers!




--- This how to courtesy of jonathancano ---


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