Oil pressure dropped!

troopa9 · 02-08-2010, 10:15 PM

The oil pressure has dropped on my b20vtec, i havnt had it running that long and it has dropped quite quickly in time. More so in the cold weather.
When i 1st got it running it used to read
50-60psi on cold start
then once warm 15psi on idle and 60-70psi over 3k
but now its 30psi on cold start
still 15psi on idle but doesnt really go further than 40-50 just over 3k
(havnt really took it much higher as im worried, just parked it up)
what would you guys suggest could be the problem.
ive checked for leaks, none that i can see, sender is new.
Im going to do an oil change this weekend (which oil and filter do you reccomend?)
I will take the cut the old filter open to look for any shavings and such.
would i also be best to take the pan off or will looking in the filter be enough?
any help would be great cus im abit scared!

tama666 · 02-08-2010, 10:19 PM

which oil pump are your running? B18 type r oil pump?

troopa9 · 02-08-2010, 10:27 PM

I have b20 pump fitted

Vtec6000 · 02-09-2010, 08:06 AM

Would have been a good idea to fit a vtec oil pump. What type of oil press gauge is it? Assuming oil level is ok then it's either a problem developed with your oil press gauge or sender unit or the oil pump itself.

troopa9 · 02-09-2010, 08:53 AM

I have a swoosh gauge.
Oil level is fine. I'm using 10w40 hilux oil I think it is. Was recommended by a mechanic friend. I have seen people running b20 pumps with no issues, but I should have fitted a vtec one. Is there any other reason there might be for low pressure. One day it was fine and the next it's low?

Rich777 · 02-09-2010, 09:40 AM

Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

Rich777 · 02-09-2010, 09:47 AM

Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

troopa9 · 02-09-2010, 09:49 AM

No work was done to the block. I used ge kit and arp head studs.

Rich777 · 02-09-2010, 09:52 AM

Thats strange it doubled my post. What about the bearings ? Did you check them ?

troopa9 · 02-09-2010, 09:59 AM

No.....

Rich777 · 02-09-2010, 10:02 AM

Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

Rich777 · 02-09-2010, 10:10 AM

When you say its droped quickly how quick are you talking ?

troopa9 · 02-09-2010, 10:18 AM

Over the space of a couple of days I noticed it. I had abit of oil seeping from rocker cover so I took it off and added some sealent and then I've noticed it's low. Not saying that's the reason but that's just when I noticed it. I have parked my car up for now till I get chance to do an oil change.

Rich777 · 02-09-2010, 10:19 AM

Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

stevenEK9 · 02-09-2010, 11:18 AM

Quite low values anyways, my b16b is about 22 on idle and 80 above 3k

that's with hamp filter and castrol gtx 10w40 and a SPA digital gauge

02-08-2010, 10:15 PM	#1 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Oil pressure dropped! The oil pressure has dropped on my b20vtec, i havnt had it running that long and it has dropped quite quickly in time. More so in the cold weather. When i 1st got it running it used to read 50-60psi on cold start then once warm 15psi on idle and 60-70psi over 3k but now its 30psi on cold start still 15psi on idle but doesnt really go further than 40-50 just over 3k (havnt really took it much higher as im worried, just parked it up) what would you guys suggest could be the problem. ive checked for leaks, none that i can see, sender is new. Im going to do an oil change this weekend (which oil and filter do you reccomend?) I will take the cut the old filter open to look for any shavings and such. would i also be best to take the pan off or will looking in the filter be enough? any help would be great cus im abit scared!

02-08-2010, 10:19 PM	#2 (permalink)
tama666 EK9.org Slave Join Date: Jul 2009 Location: Northern California, USA Posts: 1,181	Re: Oil pressure dropped! which oil pump are your running? B18 type r oil pump? __________________ Coupé, EJ8, EM1 Suspension, 99 B18C-R, 11.1" F-Rotors Northern California, USA [169whp 125wt]

02-08-2010, 10:27 PM	#3 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Re: Oil pressure dropped! I have b20 pump fitted

02-09-2010, 08:06 AM	#4 (permalink)
Vtec6000 Moderator Join Date: Jun 2007 Location: Ireland Posts: 3,483	Re: Oil pressure dropped! Would have been a good idea to fit a vtec oil pump. What type of oil press gauge is it? Assuming oil level is ok then it's either a problem developed with your oil press gauge or sender unit or the oil pump itself.

02-09-2010, 08:53 AM	#5 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Re: Oil pressure dropped! I have a swoosh gauge. Oil level is fine. I'm using 10w40 hilux oil I think it is. Was recommended by a mechanic friend. I have seen people running b20 pumps with no issues, but I should have fitted a vtec one. Is there any other reason there might be for low pressure. One day it was fine and the next it's low?

02-09-2010, 09:40 AM	#6 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

02-09-2010, 09:47 AM	#7 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

02-09-2010, 09:49 AM	#8 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Re: Oil pressure dropped! No work was done to the block. I used ge kit and arp head studs.

02-09-2010, 09:52 AM	#9 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! Thats strange it doubled my post. What about the bearings ? Did you check them ?

02-09-2010, 09:59 AM	#10 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Re: Oil pressure dropped! No.....

02-09-2010, 10:02 AM	#11 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

02-09-2010, 10:10 AM	#12 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! When you say its droped quickly how quick are you talking ?

02-09-2010, 10:18 AM	#13 (permalink)
troopa9 EK9.org Member Join Date: Mar 2009 Posts: 93	Re: Oil pressure dropped! Over the space of a couple of days I noticed it. I had abit of oil seeping from rocker cover so I took it off and added some sealent and then I've noticed it's low. Not saying that's the reason but that's just when I noticed it. I have parked my car up for now till I get chance to do an oil change.

02-09-2010, 10:19 AM	#14 (permalink)
Rich777 EK9.org Addict! Join Date: Sep 2007 Location: Birmingham Posts: 1,135	Re: Oil pressure dropped! Did you have a look at the bearings before you put it together ? Did you change the rod bolts to arp without having the rod relined/honed ?

02-09-2010, 11:18 AM	#15 (permalink)
stevenEK9 trackattack Join Date: Mar 2007 Location: Aberdeen, Scotland Posts: 2,133	Re: Oil pressure dropped! Quite low values anyways, my b16b is about 22 on idle and 80 above 3k that's with hamp filter and castrol gtx 10w40 and a SPA digital gauge

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