HOW TO: 5TH GEN: H23A OIL PUMP REPLACEMENT
Posted: Thu Jun 16, 2022 4:39 pm
Ok guys. I Recently bought a Blue top because I tore my stock motor to S@#T. 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 ppl that swaping the oil pumps is not too difficult. I am not a 'Forum Guru' or a 'master mechanic' so please keep negative comments to a minimum...
H23A
Remove Spark Plugs
Remove Valve Cover and middle cover
Set TDC
Remove Crank Pulley Bolt... I used tool but a good impact works too
Pretty Ghetto I know.... But it worked!
See
Remove Underdrive pulley and plastic cover
Remove balancer belt
Remove Timing Belt (I went ahead and removed the tensioner since i was going with a manual tensioner)
Use a screwdriver or something to keep balancer in place
Remove Balancer gears
Remove oil pan & oil pick up & oil pump
Pic of the usdm oil pump in place (good idea to use new seals & gaskets!)
Pic of the oil pickup (new gasket)
Reassembly (new water pump)
Crank Position sensor
Usdm (left) Jdm (right)
Replace oil pan
I had to modify this bracket from my sh motor to get it to fit
Everything back in place manual tensioner installed
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 since.
Hope this helps someone. If i have any typos please excuse me. I'll modify it in the morning. I'm having a few celebratory drinks. Cheers!
Following suggestion courtesy of 98vtec
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Courtesy of Jonathancano via PreludePower
H23A
Remove Spark Plugs
Remove Valve Cover and middle cover
Set TDC
Remove Crank Pulley Bolt... I used tool but a good impact works too
Pretty Ghetto I know.... But it worked!
See
Remove Underdrive pulley and plastic cover
Remove balancer belt
Remove Timing Belt (I went ahead and removed the tensioner since i was going with a manual tensioner)
Use a screwdriver or something to keep balancer in place
Remove Balancer gears
Remove oil pan & oil pick up & oil pump
Pic of the usdm oil pump in place (good idea to use new seals & gaskets!)
Pic of the oil pickup (new gasket)
Reassembly (new water pump)
Crank Position sensor
Usdm (left) Jdm (right)
Replace oil pan
I had to modify this bracket from my sh motor to get it to fit
Everything back in place manual tensioner installed
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 since.
Hope this helps someone. If i have any typos please excuse me. I'll modify it in the morning. I'm having a few celebratory drinks. Cheers!
Following suggestion courtesy of 98vtec
Following suggestion courtesy of jonathancanoOnly thing I might suggest before you put the motor in the car is to use the USDM oilpan, as its cast aluminum vs. stamped steel. This makes it stronger and is far less likely to dent or deform if you scrape it, yet it doesn't weigh any more because its aluminum. Not a huge deal, but if you still have it I'd definitely use it.
Use honda bond on the oil pump / oil pan. I recommend following the helms manual but it doesn't have many illustrations for this particular procedure...
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Courtesy of Jonathancano via PreludePower