Loss of oil pressure, slight rattle - GT-R Register - Official Nissan Skyline and GTR Owners Club forum

Dennis · 1st October 2008, 02:04 PM

Hey guys i lost oil pressure today,it was about 3 and half - 4 when you floor it now its down to 1 and half to 2 with a rattle around the top of the engine, anyone got any ideas and is it a common problem.
I need some good advice and assistance please guys.
I took off the rocker cover to check the cams to see if their was something as the noise was severlly around this area but its fine....i hope its not the bottom end.....Two days after it was on the dyno un fk ing believable.....
Dennis.

Scott · 1st October 2008, 02:27 PM

I'd say bottom end.

They sound the same symtoms as I had. Sorry.

davew · 1st October 2008, 02:37 PM

Bottom end mate

Madden · 1st October 2008, 02:42 PM

Yea proberly done your crank bearings mate as if it was the big ends oil pressure wouldn't be affected.

Dont run it without checking out the problem. RBs can only last around 3 secs without oil pressure.

You might of just snapped the oil pump drive so you might be lucky

Dennis · 1st October 2008, 02:54 PM

what a bunch of happy guys...thanks a million...it could be the oil pump no as its an N1 PUMP
Dennis

Dennis · 1st October 2008, 02:57 PM

If The cranks not scored is it a quick fix and wheres the place for quick parts or is everything overseas ?????

hodgie · 1st October 2008, 03:00 PM

Quote:

Originally Posted by Dennis

If The cranks not scored is it a quick fix and wheres the place for quick parts or is everything overseas ?????

Any of the traders on here will be able to get you parts fairly quick.

kismetcapitan · 1st October 2008, 03:12 PM

N1 pump. I had one. the gears shattered into millions of pieces under the incredible stress of....parking my car.

mifn21 · 1st October 2008, 04:16 PM

Quote:

Originally Posted by Dennis

what a bunch of happy guys...thanks a million...it could be the oil pump no as its an N1 PUMP
Dennis

It could WELL be the pump then

Madden · 1st October 2008, 05:30 PM

There have been alot of N1 oil pumps fail. There has been loads of dodgy copies going around

kismetcapitan · 1st October 2008, 05:48 PM

4 bars at full throttle...that's low pressure to begin with. I idle at 4 bars.

Dennis · 1st October 2008, 06:01 PM

I have a trust 10 layered oil cooler god knows if that helps.....so this oil pump easy fix or what ?????

G40tee · 1st October 2008, 06:21 PM

not really, you need to take the oil pump off see what has happened (aka engine out) then take the bottom end off and see what the state of that is.

i have just had an n1 pump go after 1500miles which isnt fun!
if i were you id go for something like a jun/tomei/hks/trust etc
tomei is the tits but not cheap.
hopefully it hasnt caused any damage to the crank.

kismetcapitan · 1st October 2008, 06:24 PM

Quote:

Originally Posted by Dennis

I have a trust 10 layered oil cooler god knows if that helps.....so this oil pump easy fix or what ?????

nope. engine out job. And for god sakes buy a serious oil pump instead of an N1!!!

this leads me to a question though: we've heard of zillions of N1 failures. How many people have broken a newly installed OEM oil pump??

G40tee · 1st October 2008, 06:32 PM

see thats what i want to know! the one in mine was standard before the n1 went in and when it came out it was fine!! there was no power change when put in or anything like that as it was the turbos that went and were replaced with the same.

what is the difference with the n1 and the nismo pump? i thought they were the same? but i read somewhere they arent?

1st October 2008, 02:04 PM	#1 (permalink)
Dennis GTR Register Member Join Date: Sep 2008 Location: Fraserburgh / Aberdeenshire Posts: 16	Loss of oil pressure, slight rattle Hey guys i lost oil pressure today,it was about 3 and half - 4 when you floor it now its down to 1 and half to 2 with a rattle around the top of the engine, anyone got any ideas and is it a common problem. I need some good advice and assistance please guys. I took off the rocker cover to check the cams to see if their was something as the noise was severlly around this area but its fine....i hope its not the bottom end.....Two days after it was on the dyno un fk ing believable..... Dennis.

1st October 2008, 02:27 PM	#2 (permalink)
Scott GTROC Board Member Join Date: Jun 2001 Location: at 'ome Posts: 5,719	I'd hate to be the bringer of bad tidings, but,..................... :( I'd say bottom end. They sound the same symtoms as I had. Sorry. __________________ Regards, Scott. GTROC Members Secretary. Please feel free to PM me with any GTROC Membership or Merchandising issues. OO SKYLINE OO My R32's full restoration: http://www.gtr.co.uk/forum/upload/77...ht=restoration

1st October 2008, 02:37 PM	#3 (permalink)
davew GTR Register Member Join Date: Apr 2003 Location: Up North Posts: 2,415	Bottom end mate __________________ The GTR Shop - Skyline GTR Breaker and Parts supplier. For all your GTR needs. From 1/2 clips to turbos, seats to shells , harness's to engines. call Mobile 07731304953 GTR店 We ship worldwide.

1st October 2008, 06:21 PM	#13 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 820	not really, you need to take the oil pump off see what has happened (aka engine out) then take the bottom end off and see what the state of that is. i have just had an n1 pump go after 1500miles which isnt fun! if i were you id go for something like a jun/tomei/hks/trust etc tomei is the tits but not cheap. hopefully it hasnt caused any damage to the crank. __________________ Back to the good old days! :-p Christmas present for me maybe??

1st October 2008, 06:32 PM	#15 (permalink)
G40tee GTROC Member Join Date: Feb 2008 Location: Bucks Posts: 820	see thats what i want to know! the one in mine was standard before the n1 went in and when it came out it was fine!! there was no power change when put in or anything like that as it was the turbos that went and were replaced with the same. what is the difference with the n1 and the nismo pump? i thought they were the same? but i read somewhere they arent? __________________ Back to the good old days! :-p Christmas present for me maybe??

1st October 2008, 02:42 PM	#4 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 2,054	Yea proberly done your crank bearings mate as if it was the big ends oil pressure wouldn't be affected. Dont run it without checking out the problem. RBs can only last around 3 secs without oil pressure. You might of just snapped the oil pump drive so you might be lucky

1st October 2008, 02:54 PM	#5 (permalink)
Dennis GTR Register Member Join Date: Sep 2008 Location: Fraserburgh / Aberdeenshire Posts: 16	what a bunch of happy guys...thanks a million...it could be the oil pump no as its an N1 PUMP Dennis

1st October 2008, 02:57 PM	#6 (permalink)
Dennis GTR Register Member Join Date: Sep 2008 Location: Fraserburgh / Aberdeenshire Posts: 16	If The cranks not scored is it a quick fix and wheres the place for quick parts or is everything overseas ?????

1st October 2008, 03:12 PM	#8 (permalink)
kismetcapitan GTR Register Member Join Date: Nov 2005 Location: Seoul Korea Posts: 6,300	N1 pump. I had one. the gears shattered into millions of pieces under the incredible stress of....parking my car.

1st October 2008, 05:30 PM	#10 (permalink)
Madden New Users Join Date: Nov 2004 Location: Berkshire Posts: 2,054	There have been alot of N1 oil pumps fail. There has been loads of dodgy copies going around

1st October 2008, 05:48 PM	#11 (permalink)
kismetcapitan GTR Register Member Join Date: Nov 2005 Location: Seoul Korea Posts: 6,300	4 bars at full throttle...that's low pressure to begin with. I idle at 4 bars.

1st October 2008, 06:01 PM	#12 (permalink)
Dennis GTR Register Member Join Date: Sep 2008 Location: Fraserburgh / Aberdeenshire Posts: 16	I have a trust 10 layered oil cooler god knows if that helps.....so this oil pump easy fix or what ?????

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