Make more oil pressure in your LSx motor for $.99!!!!

Рет қаралды 49,910

Armchair Mechanics Network

3 жыл бұрын

Here is a simple way to get more oil pressure in your LS motor.

Пікірлер: 97

@gregallen9065 Жыл бұрын

@ Armchair Mechanics Network fun fact......the 1973/74 455 Super Duty engines came stock with an 80psi oil pump.....yes 80psi. What many, including Pontiac learned was on cold start ups, especially if you revved it up any, the oil pressure would be so high it would blow out the o ring seal on the oil filter. The fix from the dealer and for us do it yourselfers was to put a Ram Air 3 oil pump in which was a 60psi pump and no more issues. The 455SD motor was nothing like any other poncho motor......special block for extra rigidity, bullet proof rods, etc. Really made by Pontiac for sustained, reliable high rpm operation where as on any other 455 you ran high rpm and bye bye rod bearing/s and sometimes a main bearing. But having once owned a 1973 455SD TA it was interesting to learn about the many special things stuffed into those motors, and the original issues such as that monster oil pump they had to downsize.

@armchairmechanicsnetwork9839 Жыл бұрын

That’s interesting! Thank you for sharing!

@rossryder944 4 ай бұрын

Was replacing the oil pan gasket on my '01 2500 6.0L LS, and the o-ring with it. Wanted to add the extra shoulder and bolt to the pick tube at the pump. My tube had a spot welded "keeper" attached to the side of the tube, to keep the bolt-up ring from rotating during install (I guess). I had to grind it off, and then modify the bolt-up ring so that the extra Melling shoulder would fit. And getting it installed was extra fun too.

@tinmangarage346 Жыл бұрын

Watching you dig through your Allen wrench kit brought back some memories...

@davegerena9854 Жыл бұрын

cuz obviously I'm organized lmao !!! love it!!!! same way brother just creamed in a 1 bay

@nwaoffroad4349 Жыл бұрын

Lol I love your reaction to the paper gasket 😆

@armchairmechanicsnetwork9839 Жыл бұрын

I gotta warn ya…. I put too many washers in, and my oil pressure was too high! Pet blowing the oil filter gasket out no matter what. Had to take most of them out.

@rickybailey7123 5 ай бұрын

Do u remember how many u ended up having? This would help me not to add to many myself I really don't want to take this back apart thanks in advance!!

@toneyjones7051 Жыл бұрын

Brother I love you you surely a man sent by God Houston Texas acres home Northside 96 Chevrolet Impala in a 98 Chevrolet short bed obs 2003 that's what I'm working on and I never changed my Impala appreciate you I seen some of your video a while back but I wouldn't work and on the oil pump situation I knew you was the man I had looking find your video cuz I've been talking about you

@armchairmechanicsnetwork9839 Жыл бұрын

Just be careful how much you shim it. A couple of small washers should do the trick. I put too many in and my oil pressure was so high, I couldn’t keep from blowing the oil filter o-ring out. And if you have a high volume pump, high pressure is not a good thing because it can suck the pan dry before the oil can even drain back down to the pickup tube.

@toodjackson4438 10 ай бұрын

I did this with a 327 SBC and had to get special oil filters it would blow out regular filters

@20tea 3 ай бұрын

Melling high volume high pressure oil pump helps a lot with hot idle.

@geoffreymorgan275 Жыл бұрын

Thank u for ur video

@Bill-wz6tw 5 ай бұрын

That oil starvation problem is only exacerbated by running 20W-50 viscosity oils

@Bill-wz6tw 5 ай бұрын

The volume pressure relationship is the exact same as Ohms law in electricity the more voltage (pressure) the more current flow (volume) you get in a circuit bypass valves act the same way zener diodes act. I should clarify that pumps do not make or create pressure at all they only make or create flow in the circuit or a volume of displacement and it is the restriction to this flow that creates the pressure that being said if you put a high flowing pump on a restricted flowing system it will seem as though the pump was the reason for the pressure increase. Pressure reliefs valves also come into play in these simple hydraulic systems

@armchairmechanicsnetwork9839 5 ай бұрын

Well said! Thank you. All adding shims under the pressure relief spring does is put more tension in the spring to hold the bypass closed longer before the pressure overcomes the spring pressure and opens the bypass.

@rickybailey7123 Жыл бұрын

I tried to take the cap off a pump I had laying around from a old job I done and I couldn't get the cap off I thought I was going to brake the pump !!

@raulfernandez7035 Жыл бұрын

Nice !

@armchairmechanicsnetwork9839 Жыл бұрын

Just remember to be careful and don’t over do it! I thought I had ordered a standard pump, but turned out to be a high volume pump. I had to take the washers out because the volume with the pressure would blow the oil filter gasket out no matter what. I even tried wrenching the filter down with my huge adjustable pliers.

@mauricejones6193 Ай бұрын

One is for the oil pan on the side

@estebanloya5086 2 ай бұрын

If I have a regular melling oil pump can I just put in a higher pressure spring to have the same effect?

@armchairmechanicsnetwork9839 2 ай бұрын

Yes

@randyhughes5160 12 күн бұрын

You have a press release in the oil pan too

@armchairmechanicsnetwork9839 11 күн бұрын

@@randyhughes5160 that depends on the motor. The older ones don’t usually have the pressure relief in the oil pan. But if your motor does happen to have the pressure relief, it has to be modified to get the benefit of modifying the pump.

@randyhughes5160 10 күн бұрын

@@armchairmechanicsnetwork9839 yes it is a 2015 l83

@user-cp5vl9ot9x 17 күн бұрын

It's impossible too 'suck all the oil out of the pan " with any oil pump on an LS engine ... doesn't matter if it's hi-volumn or hi-pressure...or both !

@armchairmechanicsnetwork9839 17 күн бұрын

It’s really a figure of speech. All that needs to happen is for the pump to suck enough oil out to cause the pump to cavitate, and you will ruin your bearings.

@EdisonCarter777 Жыл бұрын

Does the silverado version LY6 do the same spring shim deal? I got 39psi idle cold, and 9psi idle warm

@armchairmechanicsnetwork9839 Жыл бұрын

Yes, but if you are losing oil pressure like that, you have problems elsewhere in the oil system.

@james10739 Жыл бұрын

Almost certainly the oil pick up tube oring if you haven't changed it yet

@sarahluther4820 3 ай бұрын

The cam plate should be replaced as well as the pickup tube seal.

@kaylamarie8309 Жыл бұрын

I've got an 05 Chevy Silverado 1500 2wd with an LM7 5.3 Vortec. Work truck, high mileage about 300,000. I put in a new timing gear set, and Melling HV pump due to next to no oil pressure im sure due to larger bearing clearances from age and wear. I managed to get the minimum 7 psi at 700 rpm at idle so the warning message is gone and it climbs petty good up to a little more than 20 psi around 45 mph as the engine rpms climb but id really like a little more oil pressure at idle. I put in a melling hv pump to try to help with this so my questions are this: 1, would adding a couple of washers to the pump spring be ok and would it help oil pressure and 2, do you know if my pan would have the secondary oil pressure bypass? Like I said, it's a basic LM7 5.3 Vortec 5300 in a basic model work truck, ext cab long bed Silverado 1500 2wd. Thanks for your insight in advance. Ps. I did put the little brace on the other bolt hole at pick up tube O ring opening..

@armchairmechanicsnetwork9839 Жыл бұрын

As long as you aren’t running high RPM, you should be ok to run a couple washers under the bypass spring. But your best bet is the high pressure spring in a standard pump. The high volume pump with high pressure will pump the oil pan dry, aerate the oil, and ruin the bearings, especially at higher rpm.

@kaylamarie8309 Жыл бұрын

@Armchair Mechanics Network im usually running low RPM. I went with the Melling HV pump because Im sure the clearances in bearings have gotten more expanded due to wear. It's my work truck and the engine has 314 K miles on it. Im trying to wring every mile out of her before I have to rebuild or replace the engine. Im a private contractor and have to provide everything for my work , as such , Im also the repair shop since I own the truck lol. The pump I took off is a regular pump and is fine so maybe I'll get the spring out of it. Thank you for replying to me!

@rickybailey7123 Жыл бұрын

Your cam bearings are the problem the rods and crank are fine if u change the cam bearing oil psi will be back to normal that's all u need to do not a new engine!!

@rickybailey7123 Жыл бұрын

And for now run 15w40 Rotella or 20w50 till u get the new cam bearings!! My work van 2005 has 380 thousand miles runs like new mine is a 6.0 but it's still a Ls great motors I've had to change some of the rockers and push rods that wore in the cup of the rocker it started ticking if I remember correctly it was only 2 of them on the passenger side I run 15w40 Rotella I've got 20 psi hot with the a/c running stopped at a light I cleaned the oil pan out at 300 thousand miles and the rockers and changed the cats were stopped up sense then its been great 👍!!

@kaylamarie8309 Жыл бұрын

@rickybailey7123 thanks for the insight. She runs great, plenty of power. Ill look into that.

@KevinLopez-xj5nh 8 ай бұрын

Do you need to remove oil pump or can you do this with just removing oil pan ?

@armchairmechanicsnetwork9839 8 ай бұрын

As long as you can get to the Allen screw that holds the bypass in, you can do it.

@snaildit2377 Жыл бұрын

I'll order some things now buddy!

@armchairmechanicsnetwork9839 Жыл бұрын

Just be careful not to put too many washers. A couple should be good.

@user-jr2gt9nw8b 9 ай бұрын

14 psi per 1000 rpm. It’s not LS low oil pressure, it’s people expecting the over use of high oil pressure from the factory.

@weseethetruth158 4 ай бұрын

If you're making 14psi at 1000 rpm your bearings are toast...

@rona4960 26 күн бұрын

@@weseethetruth158 GM specs are 6 at idle for the minimum

@roscosnyder3584 5 ай бұрын

High volume oil pumps are for race engines. The reason you need a high volume pump in a raslce engine is because the main bearings have .002"-.003" clearance. Which helps achieve higher rpm. If ypure only reving to 4k you dont need that much clearance or a high volume pump. A hogh vol pump is parasitic to the hp. So dont do ot if you dont have high clearance bearings. If you do have large clearance in main bearings, use hi vol pump. If you have drain back issues, open up the oil drain ports and round them, similar to porting heads. If you've done all of this, you're already going to be running a high volume oil pan, or a dry sump. The object with any of this, is jot to get high oil pressure. You just want to keep it oiled when at higher rpm with extra clearance. Dont do this to your street engine. You will only see power loss with no benefits, and possibly cause other issues. High pressure has no benefit but can cause gasket failure. If you have low oil pressure in a high mileage engine, its likely due to worn bearings. A high volume pump would be appropriate in this case, but only as a band-aid fix.

@armchairmechanicsnetwork9839 5 ай бұрын

That makes complete sense. GM put the high volume pumps on the DOD motors because of all the solenoids that run the DOD lifters. Dry sump is really the ultimate way to go for a race motor.

@dreece2000 4 ай бұрын

The only thing that helps you achieve high rpms is a good lightweight valvetrain and and a camshaft. Obviously heads that will flow. I honestly can’t wrap my head around why someone would intentionally make more slack in the bearings and think that it helps the engine spin faster. I doubt any builder worth his salt does that. Heads and camshaft make the engine rev

@roscosnyder3584 4 ай бұрын

@dreece2000 the reason is because the crank doesn't touch the bearings while running, when working properly. It rides on a film of oil, said oil gets thinner as it gets hotter at higher rpms. Which increases oil friction. Hence larger clearances. This is a well known practice in race engines. Also, higher rpm, causes higher heat which causes more expansion of the crankshaft. I've been a professional tech for over 23 years, but don't take my word for it. Read up on it.

@stevenbelue5496 Ай бұрын

@@dreece2000the more horsepower you make the more things move around(more flex and distortion of the crank and block-main bores) when your making 1k-2k hp its trying to push the crank right out the bottom, the main bores while round or actually wider at the parting line with no tension become egg shaped when its making steam and the horizontal sides of the bore at the parting line get pulled inwards loosing clearance and the vertical clearances grow because its trying to put the crank on the ground. Take a belt or rope and laying it on a flat surface in a perfectly round circle then push outward on one side and thats exactly whats happening with main bores under extreme horsepower and the reason for extra clearance in high horsepower, high rpm situations.

@Dave_Bee Жыл бұрын

Does this increase idle pressure or just WOT limit ?

@armchairmechanicsnetwork9839 Жыл бұрын

Increases pressure on the bypass valve to increase overall pressure.

@hitmann8420021 Жыл бұрын

Funny shim mine while I was watching the video. New pump that bolt was in the something crazy

@armchairmechanicsnetwork9839 Жыл бұрын

Just be careful how much you space it! I kept blowing out my oil filter seal because it had so much pressure! I had to take my spacers out…. Maybe I got a high volume pump or something.

@hitmann8420021 Жыл бұрын

@@armchairmechanicsnetwork9839 I just put in 2. A friend of mine did 1 in his and at it idles at 40 all day

@hitmann8420021 Жыл бұрын

@@armchairmechanicsnetwork9839 he said he wished he put 2 in

@frank9649 Жыл бұрын

@@hitmann8420021 It all depends how thick the washers are to start with. In his case two would be enough, five more psi is all you're looking for, or you will blow gaskets :) and or an oil cooler if you have one.

@kevwills858 4 ай бұрын

Once in my life I found an Oil pump with a fine split in the aluminium .. Too much pressure on a Cheap housing ?? The Aluminium content is important ...

@taimurbugti652 Жыл бұрын

I think if you pull up your oil pressure spring and make it longer then before, it can also increase your oil pump pressure reading

@armchairmechanicsnetwork9839 Жыл бұрын

Haven’t heard of that one, but it’s possible I suppose.

@taimurbugti652 Жыл бұрын

@Armchair Mechanics Network I put 3 washers in my oil pressure pumps spring, but no changes in oil pressure, engine is diesel and like new. How to increase oil pressure any other way?

@armchairmechanicsnetwork9839 Жыл бұрын

@@taimurbugti652 I don’t really mess with diesels, so even if I knew what motor you had, I wouldn’t be familiar with oiling system it uses. This video is for LS style GM small block motors. You might have a secondary pressure regulator somewhere else in your system.

@taimurbugti652 Жыл бұрын

@Armchair Mechanics Network oh yes mine is not GM,mine is MITSUBISHI PAJERO or shogun 1988,4D56 (ENGINE) very old model but not used too much, totally 141000 km yet. Now I feels some pressure increased but not good. Engine is in prestine genioun Sealed, clean from inner side, new fresh oil and filters, no leakage of oil.yes my pressure gauge reading are not accurate, but Engine sounds is not like before and minor heating and vibrates

@taimurbugti652 Жыл бұрын

@@armchairmechanicsnetwork9839 Thanks for your reply and previous time

@james10739 Жыл бұрын

I have heard swimming it will raise your oil pressure like at all rpm but if it's just the bypass that doesn't make sense to me right it should be just able to get higher before it bypasses

@armchairmechanicsnetwork9839 Жыл бұрын

Correct. The bypass is set to open at a given pressure. Shimming the spring will effectively stiffen the spring with a preload. But, the faster you turn the pump, the more oil it pumps. The bypass is not a on or off valve. Therefore the pressure will reach higher pressures as the pump moves faster before the bypass is fully opened. Just remember that some LS motors have a bypass that is built into the pan as well, and that one is more difficult to modify, so bypass pressure will remain stock if you have both and only shim the pump.

@james10739 Жыл бұрын

@@armchairmechanicsnetwork9839 I'm told it raises oil pressure even at idle which is fine but not how I would expect it to work if it's called bypass and that pressure raises with rpm

@dgsrks102030 Жыл бұрын

Engine Masters, Oil Pumps for Power?!

@jamessanders7408 Жыл бұрын

👍

@davindra67 Жыл бұрын

thanks sir, how thin are these washers please ? 1mm?

@armchairmechanicsnetwork9839 Жыл бұрын

Probably about 1mm. Be careful how many you put in, I had way too much and my oil pressure was so high it would blow out the oil filter gasket immediately off idle and pump all the oil out of the motor in less than 3 seconds! A couple washers should be fine, but don’t go high pressure on an LS motor if you have a high volume oil pump because it will pump the oil pan dry.

@davindra67 Жыл бұрын

@@armchairmechanicsnetwork9839 i will try one or two maximum my car is 160 000 miles 👌🙏

@aaronmcdonald8423 Жыл бұрын

I see in one of the comments you said you had too much psi, lol....as I was watching I remembered that I put about half of what you did and I have 60psi on cold starts.... What kinda pressure did that engine actually have? Im guessing around 80 or more?

@armchairmechanicsnetwork9839 Жыл бұрын

Probably way more…. I wrenched the oil filter as tight as I could get it with my BIG pair of channel locks, and as soon as I gave it a throttle blip it blew the gasket out of the filter and emptied the oil on the ground in about 2 seconds flat!!!!😕

@budlanctot3060 Жыл бұрын

@armchairmechanicsnetwork9839 hahaha. I have a similar story. I told my fellow mopar friend about how you can put a Direct Connection high pressure relief spring in the oil pump to boost your oil pressure. Now I thought I made it clear to use a DC spring for an LA engine in an LA engine, and the DC HEMI spring in B/RB engines. Well, there must have been communication failure, because Tony put a HEMI spring in his LA oil pump which is no small feat because the HEMI spring is like a 1/2" longer than the LA spring. Anyway, he went to fire it up and his 120# oil pressure gauge needle did a full revolution and was looking for another, when the oil filter basically exploded and sprayed 5qts of fresh oil absolutely EVERYWHERE! Funny to me, & maybe to him, now, 50yrs later, but he wasn't laughing then. No, he wasn't.

@ronnelson7828 2 ай бұрын

Using all 5 of those washers may result in two possible problems. Oil pressure is so high that it defeats seals ability to hold that extra pressure, or bypass spring coil bind before you even reach the bypass port. I wouldn't use more than two washers. Just my $.02

@armchairmechanicsnetwork9839 2 ай бұрын

Yeah, 5 was way too many. I think I took it down to 2 because it kept blowing the seal out of the oil filter.

@moparsmith Жыл бұрын

I was told by GM all you need is 7 psi at idle of oil pressure on non dod engine

@armchairmechanicsnetwork9839 Жыл бұрын

General consensus is 10psi per 1,000rpm is the minimum oil pressure needed to operate safely. So if you idle at 700rpm, then 7psi is what you would need.

@myrondel Жыл бұрын

The rule of thumb is 10psi/1000rpm. That's what I learned from somewhere about hell almost 50 years ago. We were all in to performance and racing, so it's valid. I've lived by that for a very long time with many race engines and street engines.

@teagreen2220 7 ай бұрын

I have a 2017 L96 6.0 and it with stock pump runs 29 psi at 675 rpm. That is my non stock idle speed. Then the spring opens the bypass for max of 54 psi for any rpm over 2000. Go figure. Most builders I’ve talked to recommend about 23 psi as a minimum for idling for LS engines.

@nelson.dcandelario9610 Жыл бұрын

Can you do it on the engine

@armchairmechanicsnetwork9839 Жыл бұрын

You have to be able to access the bottom of the oil pump, you would have to drop the front of the pan and maybe have to take the cover off of the front to get to the Allen screw cap on the bypass.

@montecarlo6.0turbo Жыл бұрын

I've got 2 washers and get 70 cold

@armchairmechanicsnetwork9839 Жыл бұрын

Yeah, I put way too many washers….

@MrEntTv Жыл бұрын

What size washers did you use? Im next in line for this mod 😇

@armchairmechanicsnetwork9839 Жыл бұрын

@@MrEntTv they are just little washers…. Like the size that fits on a bolt with a 10mm head. Be careful not to use too many. I would just a couple.

@tthams73 8 ай бұрын

Just buy the appropriate spring and do the job right! Shimming the spring is forcing the spring to do a job it wasn’t designed for and weaken the spring failing the pump l much faster. Short cuts are not the way to go