GUZZLER

iTrader: (3)

poxy cars

leave it to idle for a few minutes & the oil pressure drops off to around 1 bar when driving it stays around 4 bar, normally above!
engine has only done 800 miles, the guy who done the crank is spot on so i don't see clearances being a problem, hoping its a lazy pump of airleak, got a new pump, pickup pipe & gasket, hopefully that should sort it.
oh well, something to do the weekend

Diamonds.

iTrader: (2)

Hope its something simple mate

Rippers

Not a mega thin oil or something silly?

tabetha

Or an innacurate guage ?
The minimum specified is 1.8 bar at 850 rpm, with 20/50 oil at 80 degrees c, 2.4 bar at 2000rpm.
So log as it picks up as it does I would not worry unduly, ford set these figures on a brand new everything, and there is so little load at idle. tabetha

GUZZLER

iTrader: (3)

it has valvoline 20/50 at the moment, i was thinking of trying a bit of mobile 1 15/50 before i got to involved.

Stavros

20W is a bit of a thick cold rating isnt it? Cant be too nice for it for cold starts.

But yeah, change the oil first, may have just deteriorated.

tabetha

I used VALVOLINE racing in me old pinto(all ok) but my dad used some in his rover v8 and had very very low pressure.
tabetha

NUTTIN RILLA

My car idles there but only when really hot and the fans are on, it usually sits about 20 psi on idle when hot but it goes up to 55 psi when driving on a motorway, me in my mental mind thought something was up but my engine hasnt changed a bit since it got rebuilt about 5k ago, let me no what you do and if its a weak oil pump as might need to do mine too

boXXer

Oh dear mate.

cossie4i+

iTrader: (15)

Good luck sorting it Mat

That is very low at idle

Even when mine is very hot its still about 32psi

Steve.

GUZZLER

iTrader: (3)

its a mineral oil to run in on, its done less than 700 miles so should still be good!!

i'll pop down Power Engineering & change the oil for some mobile 1 but knowing my luck with this car it will be more involved than that

RichieST

iTrader: (2)

my old focus used to tick over at 10psi on the gauge, have seen it drop to about 7-8psi (about 0.5 bar).... was fine for a few years like it!!!

lawnsy

iTrader: (1)

Does the oil light flicker when gauge reads this low as i thought the light comes on about 18psi?

GUZZLER

iTrader: (3)

oil light dosn't flicker but if its left on idle for about 5 minutes the lifters start to clatter a bit so they much not be getting enough pressure to them!

NUTTIN RILLA

Oil light doesnt come on till its below 7.5 psi im sure

rapidcossie

What revs is it idling at?

SassyRS

idles pretty much on 1000rpm.

rapidcossie

It does seem a bit low for 1000rpm..

any idea of oil temp at this point?

is the pressure taken from the standard escos gauge?

lawnsy

iTrader: (1)

it is strange cause it still gets good pressure when driving

rapidcossie

First thing i would do it try with another gauge....you can get cheap ones in halfords for 20 quid.

Bet it will be cool

lawnsy

iTrader: (1)

as above i would not worry if you are still getting good pressure when driving...

mine was down to 28psi when flatout before i stipped mine....

boXXer

thing is, if the lifters are tapping (which i did hear it doing when i saw ya last), thats gotta mean there isnt enough pressure top end. i would PERSONALLY just change the pump before you take out the bottom end again. least you know if that would be the problem or not.

cossiemanden

Sounds like the oil, mine was also shit low when driving WITHOUT oilcooler
Has changed to oilcooler and brand new cosworth oilpump, now its almost 3bar on idle

xr2i-carl

yes but what if you left it idling for like 10 mins?

it woudl be fucked no...?


carl

bud-weis

i'd have to agree with above, the chances are that if you have sysmptoms of poor pressure such as noisy followers then there is a problem that needs fixing

i'd have a look at the pump i reckon

SteveB

iTrader: (3)

Wasn't there a batch of dodgy 4x4 oil pumps floating about a while ago....???

Jim Galbally

mate, if that gauge is reading true, then you havea fault, it wont just be iffy oil.

dont drive it and get it checked over.

1st symptom of my 24v engine letting go was funky oil pressure at idle. it lasted less than 100miles after that

Mark Shead

You need to check your oil pump is flush with the block this sounds like there is a gap and is pulling in air, I have seen this a few times when people assemble there engines and not check,
The other is a leak from the oil pick up gasket did you put the o ring on the spray bar if it is a big turbo this is not used as the gasket seals it, if small turbo check the oil pick up pipe gasket for leaks and that the bolts arent bottoming out on the pump causing the gasket not to seel.

Mark

GUZZLER

iTrader: (3)

Mark, i checked that when it went back together, i've seen one before with that problem where someone tightened 1 bolt all the way the tightened the second bolt causing the pump to sit crooked
i have a new pump now so i'll fit that the weekend with a new pickup pipe & gasket etc....


thanks everyone

AndyRST

Is it possible that the oil pick up pipe could be particially blocked ? has the engine been rebuilt at some point and some sealent got into the oil and blocked the strainer / pick up pipe ?

xr2i-carl

so will the engine be ok now once the pump problem is rectified or will there have been a bit of wear due to this low oil pressure thats guz has experianced at idle?


carl