How to increase your oil pressure

[SKREMN]

Disclaimer: The following is provided as a GUIDE ONLY, and neither myself nor Ozhonda take any responsibility for the outcomes of someone else doing the following. You follow these steps at your own risk!




when you install an oil cooler like i did my self you loose pressure and in my case i lost about 10 PSI, i have a large cooler and filter relocation
this drop of pressure caused my vtec to occasionly drop out between 7-9k RPM

once i increased my pressure my vtec went back to normal and the car no longer has vtec problems

Now how to increase the pressure
firstly you must remove the exhaust to access and remove the sump
drain the oil firstly if the oil is still good you can reuse it just use a clean bucket to drain it into

the oil pump sits inside there

http://i19.photobucket.com/albums/b164/skremnLS/sump.jpg

once you have the sump off you will need to remove the allen bolt seen below
i thinks its a 10mm if i remember right

http://i19.photobucket.com/albums/b164/skremnLS/sumpoff.jpg

http://i19.photobucket.com/albums/b164/skremnLS/allenbolt.jpg

it will have tention behind it because its spring loaded so be carfull it doesnt fly away when it comes out also when replacing it you will need a bit of force to push it in when you tighten it back up

once removed it should look like this

http://i19.photobucket.com/albums/b164/skremnLS/assembled.jpg

now you wish to use a few washers and shimmy it up to create more pressure on the spring just a small amount of of washers can create extra pressure needed in the sping
dont go overboard with the washers i allready had 1 and added another 2 i would not go over 4 washers too much pressure and you will start more problems
different cars will require more or less washer to create more pressure if its just a slight increase wanted just add one or two if you do have pressure problems add 3
warn pumps will also loose pressure and require more washers
my pump is brand new so dosnt require this

you want to place the washers inside the piston

http://i19.photobucket.com/albums/b164/skremnLS/piston.jpg

now reassemble it all and test for leaks
do a good clean job, you cant test it untill its all back together and exhaust back on
so its recomended that you get a new sump gasket as they normally will break on removal and you will require a gasket sealer as well

this is a quick write up by request so sorry for the lack of descrition

[Riceboy]

Hi great post.

do you care to put the before and after oil pressure readings?

Just so we know what the stadard or expected figure should be.

Also where do you have your oil pressure gauge? Tee of the factory position?

thanks :)

[SKREMN]

yes i have a t peaice of the factory sensor

also my car is a b20/b18 hybrid so i want have stock readings and its been three months since i did it and dont remeber my read outs

[heist]

dont need to drain oil first? lol

[SKREMN]

well yes that would help

[ECU-MAN]

good work,

[bennyBear]

dont need to drain oil first? lol

beat me to it, lol.

[string]

On an unrelated note, the VTEC oil pumps and non-VTEC oil pumps are identical except for a single preload washer on that spring; So this procedure is the same to for a VTEC oil pump 'conversion'.

[SKREMN]

i would say so...
same procedure across most range of honda engines

[string]

i would say so...
same procedure across most range of honda engines
I think you missed the point of my post. I'm saying that there is no point buying a VTEC oil pump when the non-vtec is nearly exactally the same.

[dynosaur]

do u know where does the the allen bolt located in ITR engine ?

Only 1 allen bolt in each engine ? :)

[ECU-MAN]

you haved to remove the sump to gain acess to it

[edw-R]

Great post !! I did the same thing 2 years ago.

[imashy14u]

Would this be useful/needed on a boosted non-vtec engine with a relocation kit (but no oil cooler)?

Sorry if this is a stupid question.

[SKREMN]

the relocation wouldnt pull away too much pressure aslong as the hoses arnt too long
but also you will be running extra oil lines to your turbo right?
so having extra oil pressure wouldnt hurt
but may not be neccessary

[imashy14u]

the relocation wouldnt pull away too much pressure aslong as the hoses arnt too long
but also you will be running extra oil lines to your turbo right?
so having extra oil pressure wouldnt hurt
but may not be neccessary
Thanks SKREMN.

So if i do increase the pressure, it won't cause any problems to my setup?

[SKREMN]

no it want harm anything as long as you dont go overboard increasing it too much

[Tokyo_race]

What oil pressure should the car be on?

[ECU-MAN]

what car.

they are all different

[Newcivic]

b18c7 ITR :)

[pepper]

people shouldn't mistake this mod as a fix for low oil pressure?
but a way of increasing overall pressure, please correct me if i'm wrong.

[ECU-MAN]

b18c7 ITR :)


Engine oil pressure1. 70+ kPa 2. 350 + kPa5 (http://b16a2.kicks-ass.net/automotive/honda/techguide/reference_notes.htm)



Readings are taken with oil temperature at 80°C. First reading is at idle, second reading at 3000 rpm.

[DLO01]

What oil pressure should the car be on?

Depends what motor?

B series? Look here:

http://www.ozhonda.com/forum/showthread.php?t=66857&highlight=oil+pressure

:thumbsup:

[connorling]

how come when i undo all the bolts and nuts around the sump, toward the clutch, this metal thing stop the sump from coming off.
what to do?????
ugent!!!!thanks

[imashy14u]

how come when i undo all the bolts and nuts around the sump, toward the clutch, this metal thing stop the sump from coming off.
what to do?????
ugent!!!!thanks

Remove the metal thing.

[DLO01]

how come when i undo all the bolts and nuts around the sump, toward the clutch, this metal thing stop the sump from coming off.
what to do?????
ugent!!!!thanks


Remove the metal thing.

^^^ exactly, then you can access more sump nuts & bolts. Easy. :thumbsup:

[crobaa]

Sorry to bump an old thread but i've done this recently on my b18c7 with oil cooler & relocation kit. The spring initially either had no washers (or I lost the washer when the spring came out). I added 3 washers and checked my oil is topped up correctly. My vtec still cuts out between 7-max rpm. Should I add an extra washer? I can also shorten the lines by maybe 50mm maximum if that would help.

Contemplating getting an oil pressure gauge to check first because taking the sump off is harder than I thought it would be

[DLO01]

It does not have any washers initially. You might have another problem. 3 washers are plenty.

[crobaa]

Hmmm. Sorry to get off topic now but any idea what could cause those vtec symptoms?

[ECU-MAN]

do you have a dent in your sump ?

[crobaa]

Actually I do. But it has always been there and vtec was always fine. Could the oil pressure change+dint cause problems?

[dougie_504]

Is your solenoid alright, no leaking or blown gaskets? They can go 'pop' in an instant.

[crobaa]

My oil cooler line blew the other day, caused near instant/sudden oil pressure drop. Could that cause the solenoid to pop? Is there any way to test it?

[r3ckless]

Can u do same for k series?

[Skyline_034]

i might actually try this on my GSI haha

ill give it a go and see how it goes. feel like doing something different to it

[u mad?]

Bump for great thread, goot info.

[amant02]

As per reckless,

Will this work on K series motors?

I need a quick cheap trick to increase me oil pressure.

[TbM]

As per reckless,

Will this work on K series motors?

I need a quick cheap trick to increase me oil pressure.

on a k20a/a2 pump you don't shim it you replace the spring with a stiffer spring, part# 9657K116 from McMaster-Carr, I've got a batch of springs that should be here in the next week or 2. http://forums.clubrsx.com/showpost.php?p=9059196&postcount=26

I'm also gonna run the oem Honda 15400-PCX-004 oil filters instead of the normal small Honda filter.

[amant02]

Willing to ship one to Sydney??

[TbM]

Willing to ship one to Sydney??

Shouldn't be a problem, give me a pm next week to see if they came in.

[amant02]

To do the spring mod to K series. While the motor is in the car.

1. Remove oil pan

2. Remove the LN key bolt where the spring should reside.

3. Clean oil pan and dry fit the old sump gasket or get a new one.

I'm really hoping I dont have open the timing chain cover. That would be a pain in the arse. Specially when I just paid for that happen.

http://www.tegiwaimports.com/images/l/genuine-honda-oil-pump-k-series-k20a-civic-type-r-ep3-3483.jpg

The LN key we need to open is shown in the pic above. Under the gear of the pump facing towards us in the pic and inline with the blue dot. But it will be facing the exhaust side while in the motor?


Can someone please confirm this for me.

[amant02]

As we can see in the pics below, the pan removal should give me access to that bolt which I think houses the spring I need to replace?

http://www.k20a.org/upload/k20aorgspecmotor/build/thumbnails/xtn_Picture,P20974.jpg.pagespeed.ic.u5tgfUvX1f.jpg

http://www.k20a.org/upload/k20aorgspecmotor/build/thumbnails/xtn_Picture,P20989.jpg.pagespeed.ic.tQoBNONbUv.jpg


Any input from a si fu would help.

[TbM]

yeah just pull the sump off and you should be able to get to it

[yabloko]

this thing OP *tuned* is a bypass and does not increase oil pressure @ some revs (at low - definitly not)
I wonder @ what revs this bypass starts to drop pressure?