Oil pressure issues
- Thread starter DZN60
- Start date
Help Support 4GTuner:
Put a pressure gauge into the head where the oil pressure sender is just to see how much oil pressure is getting up to the head. (Buy a cheap $12 pnuematic pressure gauge with a 1/8" bsp fitting, one that is used on a compressor, for diagnosis issues only). Or if you have a proper gauge use that..
I have just changed my oil pump and getting 40psi at idle.
This may help in the diagnosis of your problem.
I have just changed my oil pump and getting 40psi at idle.
This may help in the diagnosis of your problem.
take the turbo oil feed off the head (dont run the car) and crank it until oil come out of the head.
when they haven't been started for a while or freshly built they can be a bitch to get oil pressure up in. the best way imo is to spin the oil pump with out the timing belt on for a while to pump up the lifters and fill the head with oil
when they haven't been started for a while or freshly built they can be a bitch to get oil pressure up in. the best way imo is to spin the oil pump with out the timing belt on for a while to pump up the lifters and fill the head with oil
As Dougmo said,
Crank it over (disconnect the MPI relay) until you get oil pressure @ the head.
You can confirm oil pressure by looking into the head (cam lobes / lifters) OR pulling off the oil feed to the turbo and waiting for oil to come out of there.
It took me about 15 seconds on the VR4 to get oil pressure cranking.
It took me about 5 minutes cranking on the AMG to get oil pressure (this also required some additional work to get oil into the system.)
With a new build, it is very easy to get air locks in the system. Especially with external air - air oil coolers etc.
Is the bottom end recently rebuilt? ie new?
Did he pack it with vaseline or some form of lube?
He is right, forums can be full of dickheads, but can also be full of knowledge.
Another question.. are they new lifters?
If so, were they primed prior to installation?
If not, were they cleaned and bled?
One more thing, make sure the distribution block is installed in the head. I've heard of some horror stories of guys leaving it off (which means no oil goes to the lifters / cams).
Crank it over (disconnect the MPI relay) until you get oil pressure @ the head.
You can confirm oil pressure by looking into the head (cam lobes / lifters) OR pulling off the oil feed to the turbo and waiting for oil to come out of there.
It took me about 15 seconds on the VR4 to get oil pressure cranking.
It took me about 5 minutes cranking on the AMG to get oil pressure (this also required some additional work to get oil into the system.)
With a new build, it is very easy to get air locks in the system. Especially with external air - air oil coolers etc.
Is the bottom end recently rebuilt? ie new?
Did he pack it with vaseline or some form of lube?
He is right, forums can be full of dickheads, but can also be full of knowledge.
Another question.. are they new lifters?
If so, were they primed prior to installation?
If not, were they cleaned and bled?
One more thing, make sure the distribution block is installed in the head. I've heard of some horror stories of guys leaving it off (which means no oil goes to the lifters / cams).
DZN60
Well-Known Member
- Joined
- Aug 25, 2009
- Messages
- 270
Bottom end is rebuilt bought off (jonson) head was fully rebuilt by jhh engineering in brisbane new jonson high lift lifters they were primed as i was told when he installed them at jhh.....i think its just the mech not knowing these cars too goood and has never heard noisy lifters in a mitsubishi before so hopefully monday they will have worked it out but im still gonna ask if they cranked it with the mpi disconnected
JC evo1
Well-Known Member
when i started mine for the 1st time i took off the turbo oil feed at the head and pumped oil into the motor until it came out the lifters, when i fired it up it had good pressure and no ticking.
JC evo1
Well-Known Member
yepDZN60 said:
depends how long they had it running for, JHH would have used plendy of assembly lube i think you should be ok.DZN60 said:
DZN60
Well-Known Member
- Joined
- Aug 25, 2009
- Messages
- 270
JC evo1 said:
yeah they used plenty i saw it on there when i picked the head up i think its just noisey lifters still even tho they are the jonson brand 3rd gen 1s....i think the mech im using just has never heard a ticking mitsubishi lifters before
Dean
Member
Who's building it for you? surely you would've chosen a reputable mechanic who's had Mitsubishi experience.
Dont want to sound harsh, but mechanics should be aware of these things.
Dont want to sound harsh, but mechanics should be aware of these things.
DZN60
Well-Known Member
- Joined
- Aug 25, 2009
- Messages
- 270
Dean said:
I know what your saying but this guy is good not a mitsubishi specialist but good still don't know what it is there is a block of some sort from the bottom end to the head dunno if it's the oil pump or threw the gallerys to the head ....how do you tell if a oil pump is stuffed?
Follow the advice above buddy.
Prime the engine first.
Get oil to the head / turbo.
Then start it up.
Check that the oil distribution block is installed.
Do you have an oil gauge?
If not, install one somewhere (stock oil filter housing oil pressure switch port) and confirm that you have oil pressure.
Prime the engine first.
Get oil to the head / turbo.
Then start it up.
Check that the oil distribution block is installed.
Do you have an oil gauge?
If not, install one somewhere (stock oil filter housing oil pressure switch port) and confirm that you have oil pressure.
