I know someone will say this should be in maintenance, but the reason I'm putting it here is because not a lot of people go in maintenance, and it is directed to the ones who like to race there 2.4's, or run them hard. Please check your oil. Running low on oil and plan hard on the motor you are going to spin a rod bearing. I have known too many LD9's spinning rod bearings from the owners running them low on oil. I know some will say that the LD9 has weak oiling system. Maybe it does, but I have owned many never had a issue, but I also check my oil and know my car well enough to know when it needs oil. Weak oiling system or not, you run a LD9 low on oil and get on it your going to spin a bearing. This info should be in the stocky as well, you want to play you should be ready to pay.
FU Tuning
John what would be the best way to upgrade on the oiling system. On our ld9..
My mechanic is saying that the pick up sreen gets clogged. Also do we have the option to put on an oil cooler sytem?
GOLD Z24 wrote:John what would be the best way to upgrade on the oiling system. On our ld9..
My mechanic is saying that the pick up sreen gets clogged. Also do we have the option to put on an oil cooler sytem?
You can upgrade to a 2.3 oiling system. Block work is neede for this. Yes you can put a oil cooler on. My turbo Z24 has one.
FU Tuning
ive actually ran both of my 2.4 low on oil , and never tossed a rod
but i know several people that have tossed a rod , and had plenty of oil
Ok what work is needed in the block? Also when I had the work done in Ocala my parts list contained a 2.3 oil pump. What basically going on is the crank bearings are
taking a crap on me.
[quote=97cavie24ls(JDM&00s/c sedans™)]ive actually ran both of my 2.4 low on oil , and never tossed a rod
but i know several people that have tossed a rod , and had plenty of oil
I've also run my LD9 low on oil, ran it real hard, and not had any problems either (Not my fault, I took advantage of my dealership's free oil change a month after I bought the car. Perfectly full when they were done with the change, and less than a week later I check again and the f**king dipstick's got nothing but a little black smear of oil on the tip 
)
Mine was a quart and a half low and spun the # 4 main bearing luckily it was still under warranty. Just had to drive a rental for 2 months while the dealership found a new motor and got it installed. So long long story short I agree about keeping check on the oil level, as now the warranty is gone and don't want to pay for a new motor out of my pocket.
ive replaced bearings 11 times in 4 months while autoXing.... i changed oil every third race and topped off before every. There just isnt enough oil to keep the pickup submerged when puting these cars on full tilt @ 6000rpm. Its mostly the stroke. 3.700 inches is no joke... an LS1 is 3.622
Short rods, long stroke, steep rod angle, high revs... all equals disaster.
I was also looking into the parts LD9 fury mentioned. Is that replacement pump enough to counter act some of the short commings of the stock set up? Also it seems the 2.3 swap is the only "complete" solution, is this true? Thanks
Shawn M.
PSN ID: Phatchance249
I ran my sisters 97' Grand Am hard after leaving drill one day and f***** something up...but i have a Z2 and have ran it to the ground, and nothing has gone wrong....(yet)
NEW SIG COMING SOON FOR 07'!!!
I knew this would happen on the ORG. Of course we have this cases where there was no oil in the motor and no problems. Just like there will be cases where oil was full and had problems problems. I'm in no way saying this is the reason every LD9 spins a rod bearing. Also when I say low on oil I'm not saying half a quart. I'm saying where there is nothing on the dipstick.
In regards to the products JBP has for the LD9 and if they will help. They might. It appears the JB9 oil pump is higher psi, but might not be higher volume. I'm considering trying it. In regards to the balance shaft kit, well already planing to take mine stock ones apart. Still use a 2.4 oil pump, but take the guts out of the balanced shafts. See what happens.
FU Tuning
Now I'm going to worry about my motor until I check my oil level tonight when I get home... Did an Oil change 2 weeks ago... didn't notice any issues but I have noticed that it appears to have a bit of a leak/burn... 1L per 1000-2000KM...
Knowledge about everything and yet an expert of nothing!!
Jack of all trades.
LD9 Fury (The JBO Viking) wrote:John Higgins wrote:In regards to the products JBP has for the LD9 and if they will help. They might. It appears the JB9 oil pump is higher psi, but might not be higher volume. I'm considering trying it.
Hmm, I overlooked that part, the whole higher psi versus higher volume thing. Probably worth an e-mail or a call if someone's really interested. It seems they are well aware of the 2.3 swap and its' advantages with the LD9, so it seems logical to assume they would try to replicate all those advantages with their own custom oil pump.
P.S. - It's BS like this that made me not want to mod my LD9 any more 
. LD9 go BOOM!
I have always been aware of the oil issues. That has not stopped me from beating on my LD9's. My 2001 z24 has between 200-250 track passes, plus the beatings I have put on it on the street. I just take care of it, check my oil, watch my oil pressure gauge, and I'm adding a oil temp gauge as well. My biggest point in my post was to pay attention.
FU Tuning
amen John. I lost a motor to this also
Blew it up, build numbers coming soon
LD9 Fury (The JBO Viking) wrote:On the topic of the 2.3 oil system swap, I wonder if there's any credibility to these items from JBodyPerformance?
JBP LD9 Neutral Balance Shafts
JBP LD9 High Pressure Oil Pump
Seems like if someone were not so much inclined to manually do the 2.3 swap, that those items would be a decent alternative.
Based on their descriptions, you think they would pretty much do the job?
I am going to be running this set up when I swap in the 2.4 into my car now.. Ill let everyone know how it goes.. Ive called JBP about the neutral shafts and they said their pretty backed up right now for me to send them my shafts.. So they told me to just send in my core so I can get the high flow pump..
~2014 New Z under the knife, same heart different body~
______________________
WHITECAVY no more
2012 numbers - 4SPD
AUTOMATIC!!
328 HP
306 TQ
6k?? 6,500. no problems. all about synthetic. got low k's too under 100k
Working on obtainting an M-Class license... ?? Hint: 2 wheels.
i think i just fried my motor due to this ... i just drove from MN to IL checked oil before i left it was full and when i got home had about 3 quarts less, now she knocks and i dont no how im getting back to MN
lost a bearing in my '97 from low oil........
My '02 bearings looked brand new after 50k
HARD miles on it........ I even auto crossed the crap out of it...... WITH a turbo on it.......
SPD RCR Z -
'02 Z24 420whp
SLO GOAT -
'04 GTO 305whp
W41 BOI -
'78 Buick Opel Isuzu W41 Swap
I use Mobil 1 for my protection. Oil level is always full, no leaks. I think its more on the quality of the motor when it was built, as well as it has been taken care of maintence wise. I beat on my car every now and again, but know she can handle it. If I ever did spin a bearing (knock on wood that i dont), what would it sound/act like anyway?
Ender_Wiggin wrote:I use Mobil 1 for my protection. Oil level is always full, no leaks. I think its more on the quality of the motor when it was built, as well as it has been taken care of maintence wise. I beat on my car every now and again, but know she can handle it. If I ever did spin a bearing (knock on wood that i dont), what would it sound/act like anyway?
trust me you will know. It will be a knocking noise. Some times you could feel a loss in power as well, but the rod knocking will be the key.
FU Tuning
i know i threw a bearing but how bad is this how much more can i drive the car at all? a little? any input please
gmanz24 wrote:i know i threw a bearing but how bad is this how much more can i drive the car at all? a little? any input please
to answer your question, you will probably be fine to drive on it for a while maybe even a few months.
My 99' Z24 also started to knock with only 83k on it, i was beatin on it in the dead of a midwest winter, and 1.5 quarts low on oil, i was an idiot but i learned my lesson 600 bucks later when i replaced it with a 52k LD9 I picked up for 600 bucks.
gmanz24 wrote:i know i threw a bearing but how bad is this how much more can i drive the car at all? a little? any input please
Truly no one can answer that for you. It could hold together for a while, but the more you run the motor the more damage you are doing. Do you plan to rebuild the motor? If so you keep running it the crank will be crap. You also take the chance of putting the rod through the block. I have known of 2 J's that have seized up from running after the bearing spun. I would not drive it anymore.
FU Tuning
