How To Get Oil Pressure On A Brand New Motor

[CruiseLiner]

hey guys im about to crank the old 26 over for the first time in the next few days to get initial oil pressure before we actually start it.

i had trouble last time when my motor had no oil in it for ages and then i cranked it (not rebuilt, was just not used for 6 months sitting around) and it wouldnt pick up pressure, so we eventually pulled one of the oil lines from the remote filter setup off and poured oil down it and it worked str8 away (must have been an air blockage in the system).

so whats the best way to get pressure the quickest, besides the method i used before as my remote filter is under the car now so its abit difficult to pull it up above the engine again.

cheers guys

Brad

[boot_it]

^^^^^

if u rebuilt the engine did u pack the oil pump with vasoline this will help with oil pick up from the sump

[Cubes]

I'm unsure if my builder packed the pump with vaso but I did crank it over for quite some time with spark plugs out.

As soon as I saw plenty of oil in the head (oil pressure light was still on) I dropped the plugs back in and fired it up.

The oil guage no oil pressure light went off instantly once it started.

Exciting times for you ahead.

I ran around like a chook with no head the minutes prior to starting her up, double and tripple checking everything...

The car was started and dumped coolant in the pit as I forgot to pinch up the inside turbo water banjo... Bugger. lol

[Roy]

You never forget to something like that...its always that other guys fault. You know the one helping..."I swear i asked you do it"

[CruiseLiner]

no unfortunately i didnt pack the oil pump with vasoline, always get told these things after the build is finished haha.

so any other methods except the crank and crank and crank 10 billion times until its got pressure (with the spark plugs out obviously)?

[Busky2k]

I'd pull off the oil filter, give it a refill of oil as much as you can and then prime the oil pump by feeding oil through the center hole on the oil filter mount.

[Denver]

I went through this myself a little while ago..

Heres what i ended up doing..

Back fed it through the factory oil pressure sender pickup, it'll take a while as it needs to fill the oil filter and whatever else is in there..

back cranked the motor by hand, eg the reverse direction to try and suck some oil into the pump..

jacked the back of the car up as high as it would go on the jack, and poured about 8 litres of oil into the sump..

not sure which one worked over all, as we tried a few things along the way but it picked up pressure.. we drained the excess oil from the sump, and its run fine ever since..

It was a _very_ long hour for me, so i understand what not getting pressure is like.. did you make sure the bearings copped a good dose of oil, or in my case, vasoline, whcih doesn't run off same goes for all the cam bearing etc..

[StockyMcStock]

pour like 12 litres of cheapass oil into her, so that the oil level is above the pump. take it all out, put good stuff in and go. it will work first time, i guarantee.

[CruiseLiner]

pour like 12 litres of cheapass oil into her, so that the oil level is above the pump. take it all out, put good stuff in and go. it will work first time, i guarantee.

<{POST_SNAPBACK}>

so do i crank it with 12 litres in it to start getting pressure then drain it, or drain it and then crank for pressure?

i been trying this arvo, poured it down the oil filter line and its got oil pumping out, though not heaps at a time, and the turbo feed is pumping oil out though not alot of pressure either, though my autometer oil pressure gauge is showing 0 still

will give your idea a go tommorow for sure, cheers mate for the info

Brad

[StockyMcStock]

you can do either, might as well give it a crank for a bit. can't really hurt anyway. it's mainly just to get oil in the high pressure OUT line from the pump to the high pressure bearing galleries. once it's there, and full, the pump is ready to go.

[boot_it]

so do i crank it with 12 litres in it to start getting pressure then drain it, or drain it and then crank for pressure?

i been trying this arvo, poured it down the oil filter line and its got oil pumping out, though not heaps at a time, and the turbo feed is pumping oil out though not alot of pressure either, though my autometer oil pressure gauge is showing 0 still

will give your idea a go tommorow for sure, cheers mate for the info

Brad

<{POST_SNAPBACK}>

just buy a cheap ass manual oil pressure guage remove the factory oil pressure sensor hook up cheap ass oil guage in its place crank motor over (do not start)untill u get oil pressure start up car with oil guage still hooked up just monitor oil pressure guage 4 a few minutes or leave on untill warm or u feel happy switch engine off put factory oil sensor back in end of story

hope this helps u out

[WetGTR]

I'm unsure if my builder packed the pump with vaso but I did crank it over for quite some time with spark plugs out.

As soon as I saw plenty of oil in the head (oil pressure light was still on) I dropped the plugs back in and fired it up.

The oil guage no oil pressure light went off instantly once it started.

<{POST_SNAPBACK}>

As cubes has done.

The ideal way would have been when the engine was out the car and on an engine stand. You tilt the engine toward the oil filter side and turn over the engine with spark plugs out until you see oil going to the head.

The next step or if the above step cannot be done, follow what Cubes has mentioned.

There is no stress on the bearings as they would have been coated with oil during the build and as there is no combustion and no plugs - no stress on parts.

[Denver]

i been trying this arvo, poured it down the oil filter line and its got oil pumping out, though not heaps at a time, and the turbo feed is pumping oil out though not alot of pressure either, though my autometer oil pressure gauge is showing 0 still

<{POST_SNAPBACK}>

If its pumping oil out of the oil feed line it sounds like theres oil going through it, have you got the factory sender hooked up?

cheers

[CruiseLiner]

If its pumping oil out of the oil feed line it sounds like theres oil going through it, have you got the factory sender hooked up?

cheers

<{POST_SNAPBACK}>

nah im using the autometer sender unit, which worked fine about 6 months ago when i last tried it, so im just thinking it aint cranking fast enough to produce full pressure. the gauge goes to 0 when i connect it up so i'd assume the gauge is working fine.

its got the jun oil pump which flows alot more, but would take more volume to get it full and flowing properly i'd imagine.

so yer oil is coming out of the turbo feed slowly, not a full tube of pressure though, but thats cause its only cranking maybe?

oil filter is pumping oil through too, i just dont really wanna start it at all till its got full pressure, as if i start it and it doesnt create full pressure it can cause alot of damage running without any oil whatsoever (except the oil from rebuilding and assembly, which wont last 5 min at 1000rpm per minute.

do u guys know if i need more revs to get the JUN pump flowing?

thanks for all the info/ideas people, much appreciated

Brad

[ylwgtr2]

i have an old BBQ bottle that i have welded a filler and a thread for a gauge into.....then what i do is fillit up with oil,pump it up with air and screw it into the sender hole......open tap and it floods all the gallerys with oil....same as if the engine was running

[Sydneykid]

As per the PM, start the sucker and get on with it. I want to know how it goes.

cheers

[Craved]

old thread revival .. well not too bad,

can anyone explain the vasso packing process so i can use it for when my RB30 is finished and realy to go???

cheers

[ODessA]

"I ran around like a chook with no head the minutes prior to starting her up, double and tripple checking everything...

The car was started and dumped coolant in the pit as I forgot to pinch up the inside turbo water banjo... Bugger. lol"

done the same thing

[N I B]

Every engine i build i turn upside down on the engine stand before the sump goes on and put a funnel in the oil pickup hole ,fill with oil and turn the engine over with a big bar onthe balancer bolt until oil comes out the cams etc then sump on ,cam covers on and in the car start it up.