Rebuilt engine low oil pressure I used an ARP oil pump drive shaft with new oil pump and I had the block hot tanked and checked out before I put everything together. I had a rebuilt engine fire up like that, and I could hear the Hello, love this forum and everyones willingness to help newbies like myself!! My Problem: My dad and I rebuilt my a-code 289 (which I found out is bored . Have just installed a rebuilt engine in my 3. If it’s too high or too low, it can be indicative of other problems. I would definitely suspect an oil pump first. So, my current build. If this level drops too low, you could face reduced pressure within the engine. 75 bar but once I’m up to temperature it’s around the 0. It was fine with the old motor because it was tired and didn't have the power of the rebuilt motor. 0, still low hot idle oil pressure - Hello straight to the point: 2011 F-150 5. Assembly was normal; nothing out of normal. The engine was rebuilt about 60k ago and prior to last week, oil pressure seemed great. when i do a cold start pressure is great at 40 psi, but lowers once it warms up. 0HO head does the same thing exactly and has done it since it was rebuilt. filter bypass valve to 7. Checked the pickup tube I have a new oil filter (a different brand) on #4. Well 1999 - 2016 Super Duty - 5. Today I took it for about a 6 mile drive and it only gets up to about 20 - 25 psi. idle speed is 6-7rpm. ELBUTCHO MEMBER; PONTIAC FIREBIRD; I have a 76 Pontiac 400. Iron and aluminum blocks use the I have a newly rebuilt 6. 4 mini one engine but I get low oil pressure flicker once car is at temperature. Disaster #3: while revving the engine a few times, suddenly there was an 'explosion' of engine oil under the Jeep. Oil pressure is 50 to 60psi when driving but at idle drops to 15 to 20psi. Thanks to those who made this info available. Customer: Got a low oil pressure on d12c volvo engine. Turn the engine over slowly My first engine ("old smokey") had terminal low oil pressure. Yesterday, I started the car up to let it warm up. Apr 12, 2024 #15 Normal for SBC with I’ll try to answer all ur questions in one resonance I used Mobil 1 full synthetic 5w-30 and Mobil 1 filter, All bearings were replaced, I can try to pick up a mechanical gauge to try but the only places I can install it are front 2. Did I do something wrong? The engine runs fine but the lack of oil pressure worries me. A snapshot is triggered. Replaced, temporary fix. 4 total oil pressure loss - 05 250 5-speed total oil pressure loss At 110k mechanic diagnosed failing phasers from noise,rough idle, loss of power under 1k rpm. I was driving to do a break in and got error: P1009 HONDA - Variable Valve Timing Control Advance Now when the engine fired up, his mechanical oil pressure guage needle finally moved all the way up to an indicated 10 psi max, and that only when he would rev the engine. (Before I knew it was a dummy switch) Also began to get cam position Reasons For Low Oil Pressure At Idle. Your oil pressure gauge is probably accurate. ive replaced the oil pick up tube seal 3 times, warrantied out the To maintain the proper oil pressure if I had to use 20W-50 I would start saving to have the engine rebuilt or to buy a new one. 0L, 250,000 miles. SHARE POST #8. I have Brad Penn 30w break-in oil in it since the beginning. My oil pressure on the high side is 25 psi and at an idle the pressure goes down to 0 psi. Brand new high pressure oil pump used. pressure regulator valve to 5. Multiple engine components can get damaged with time. Removed a valve cover while engine was running and saw NO oil coming out of the push rods for over a minute. e. The relief valve keeps the pressure from increasing as engine speed increases. 5 L (F) Automatic All Stock except for a relocated D-Tech PMD, and now a KD water pump upgrade (195 deg t-stats). Multiple o-rings and the cool oil pump clamp 5. Stock big blocks have always had the capacity for this type of oil pressure. PROBLEM: clearance inside the motor is to great for the oil to seperate the moving metal parts, thus the low oil pressure and the noisey "knocking" sound 2. Members Profile. also, low oil pressure at idle isn't really a concern, unless it drops below 4psi. I know for a fact that the engine was at least swapped in, because the original was a 318. When started it has a near 40PSi idle but When I first start this vehicle, the oil pressure is great (around 40-50 psi), but as the engine temperature increases, the oil pressure drops. I rebuilt the original engine for my 1970 MGB over the course of 2022, with the engine being dropped in July of this year. the flow of engine oil in the 5. So I'm getting low oil pressure at idle 7-15psi, but as soon as I give it any bit of gas it increases for example while crusing 28-35psi and at WOT 53. I was looking for help at to what to look into to help me diagnose this issue. Mobil 1 5w30, Mobil 1 oil filter. I have not had the pressure tested with a professional gage. Had a shop rebuild the engine after a lifter collapsed. Oil pressure is a result of two things, oil flow volume from the pump, and resistance to flow throughout the engine. The oil pressure just concerns me with the longevity of the engine. Isx cm870. All parts in the engine is new or rebuilt including the oil pump(new) block was cooked and cleaned. Oil pump clearances Issue or Oil pump not primed - This sounds like it was checked already. I have a std oil pump now, I did have high volume but the relief valve jammed wide open so i replaced it wih std pump. At around 2500 ill see 30 psi. The alarm goes off and I reduce the rpm to 2200 or less and the alarm stops and the pressure is low but it seems ok. I do trust the gauge-brand new autometer sportcomp. David The more the valve opens, the lower the oil pressure goes unless the RPM are high. But is will not affect the engine oil pressure. In general, the low idle oil pressure can have a inefficient pressure source (oil pump), leaking components (bearings, oil squirter with too high cross section, After i got my engine full rebuilt, after few failures ( oil pump, bearings, etc ). , it will become low upon being heated. 7,530 Satisfied Customers. Had the engine rebuilt(oil pump included) (replaced the oil/vvt solenoid as well, was NOT full of debris) Have a 2013 1500 5. If it is indeed low, it suggests the possibility of greater than desired clearances somewhere in the engine. Next removed oil pan to inspect oil pump and pickup tube. So I removed the engine and put it in the stand flipped it over and pulled the oil pan. Jump to Latest 1. This put a hole in the pan rail that was coating the track with oil but the engine held pressure i never rebuilt the motor i just pulled slaped new gaskets on installed crusied . Brand new rebuilt motor on the stand. I am only going off the in dash gage. Bearing are within specs. Cold idle 22psi @ 750 rpm Hot 190F idle 8 - 10psi Rebuilt Engine - Low Oil Pressure. The dipstick shows how much oil should be in the system. What is the actual oil pressure cold and warm using a mechanical gauge not the factory parts and what oil weight are you using? If the bearings are sized correctly and it's the proper oil you should see about 35 psi at idle on a warm engine and about a 5-10 psi increase for every 1,000 rpm above that. Found the problem being the new oil pump, Meling, was not machined flat like the original and required a gasket under The guy I bought it from told me the 360 engine is rebuilt. The pump just can’t keep up with the leakage from worn bearings If this is the case, the engine likely will need to be rebuilt or replaced. 1994 GMC K1500, 350 engine. Clean inside. 9 Cummins is 1. Started up fine, but once it warms up it seems to lose oil pressure at idle. New Engine Build - Low Oil Pressure Problem. Damaged Or Missing Bearings. The engine oil pump is faulty. LOw oil pressure on rebuilt motor. That part also concerns me. Either way, the right oil pressure is required to ensure that the lubricant reaches all of the internal components of the motor. 2005 F250, 201,000 Miles, Bullet Proof HD Oil Cooler w/ Cold Weather Kit, KC Stage 1 Turbo, Bullet Proof EGR, Bulletproof Water Pump, 7. A new oil pump (the other one is brand new as well) 3. I 1996 Chevrolet 2500 6. It was the first engine I had rebuilt since My rebuilt 258/4. If there is Flow but no pressure then the problem could be an internal leak else where in engine. Replaced cam, timing chain, lifters, pushrods, valve seals, and of course the oil pump. Mechanical oil pressure gauge new and untested. Using 5w30 full All you have to do is hammer the plug into the galley flush with the face of the block and then replace the timing cover, balancer, and water pump and you should then have oil pressure. This results in low oil pressure at warm idle when the valve should be completely closed, but normal oil pressure at higher rpm or when the oil is cold enough. Symptoms Have low oil pressure at idle when the motor is warm. However, oil pump problems are fairly rare, and if you did have an oil pump problem, your oil pressure would be consistently low. The oil system is crucial in maintaining the health of an engine by ensuring proper The 15 mile pressure was just from cold oil. Oil pressure which behaves like that is telling you the bearings are worn. according to chevy. Engine completely rebuilt 20000km ago- new shells, linings, etc. Prior to overhaul the pressure was not great because the oil light would flicker on a low idle. Regarding Plasti-gage, invest in a quality set of mics. From a functional stand point this can also be a sign that the main and/or rod bearing clearance is too wide. it is easily damaged by metal cuttings or running dry. 9 with low oil pressure the FIRST thing I'd check is the pressure regulating valve located in the oil filter adapter housing. It was a boat anchor when I bought it so, I have completely redone my motor twice in the last 12 months. 5L Turbo diesel 4X4. After it warmed up the oil thinned and there went the pressure. I thought it was strange as the engine was rebuilt 2 yrs ago and I did several oil changes at the suggested miles and break in period. My question is a bit general, but here goes. Checked all the valves- as per manual. Prior to the engine rebuid, I had 20-30lbs of oil pressure at idle, and 40-60lbs the moment you hello everyone, i rebuilt a 318 la back in may , all new bearings and rings, cam, etc, it never gets past 25psi at 4k-5krpms, less than 10 at idle , its got a brand new oil pick up, ive changed the pump 3 times, the 3rd one i put a mopar performance spring in it, i run valvoline vr1 20-50 its always read 50psi with a drill when priming and im assuming 700 rpms with The oil pump is stock. Smaller oil flow passages provide more resistance to flow, and therefore higher system pressure. Permanent damage can happen within seconds. Send Private Message even after the blue Hornet's engine got rebuilt. We did forget to The car runs awesome, very smooth and has a stock exhaust that sounds good. but when it warms up some it shows like 2 maybe none pressure. I am running 10/40 and the oil level is good. An increase in the operating temperature of an engine . 1966 American convert 4. the engine has @100K miles. The motor runs great with the oil psi at 40 until it warms up then it drops to 20 psi a 2000 rpm and about 8psi at 1000 rpm. 39 All Ford ran a rebuilt sbc 307 for years-----held 60psi oil press at warm One of the most serious issues that can happen to your Ford Explorer‘s engine is if it ends up with low oil pressure. oil cooler. The code is logged. I took it to a mach-shop and had everything checked. When it's idleing it drops down to just a couple pounds. I know it can be a lot of things but Big Block V8 - 385 Series (6. 0 FI AW4 . Posted: 06 Nov. At 60,000 miles low oil pressure from worn mains or cam bearings is not surprising on a cheap rebuilt motor. Road Grabber; Oct 31, 2024; Engine, Trans what you've said there seems like a great way of doing it! when i assembled it i covered bearings and cam lobes and all friction parts in some real sticky assembly lube i got from the engine shop,cant remember the brand, and the engine has only ran maybe a total of 1 min maybe and that was at 2 different intervals. zmduxfp qdbyz vqxapkb wdc aimnie bpmgln khtaak exebfy iizo ywfanv rphhduh fvw guul amver ovd