How to Fix Lifter Tick or Rod Knocks With Oil Additives

hey how's it going duty Sulphurs today we are going to see whether we can solve engine noise issues with some good ol oil additives now in this video we're going to go over two different causes of engine noise and hiking go about fixing em but first we need to go over the basics so first things first make sure that the noise you're hearing is actually coming from the inside of your engine and what I mean by that is to make sure that the noise is from an internal source to the engine and not something from the outside of it for example if you have a loose heat shield on your car especially on the exhaust which happens a lot every time you rev the engine it's kind of vibrate and hit against your engine or your exhaust manifold and make a very distinct rally noise and if you're not familiar with that noise and have inherited before you might mistake that for a noise that's internally sourced and start adding all sorts of additives to engine all the while it was a loose heat shield and next up make sure you check your oil level and that your engine has enough oil in it also make sure the source of your engine noise is not due to detonation for which the diagnostic procedure is very different I do have a separate video for that which I'll include a link to at the end of this video so make sure you watch this video all the way to the end so yes in this video we're gonna go over main bearing or rod knox and also lift their knox or lift their noise in general now some of you may know a rod knock is when your rod bearings which I'm going to show you in a sec right here gets worn out you're in a certain limit and creates slack between the spare and cap and your crankshaft and when that happens every time it's connecting rod which is attached to your piston goes up on its way down its gonna smack against this end and make that distinct knocking noise now as far as what usually causes rod knock or these bearings to wear out prematurely it is usually poor maintenance or in other words like a frequent oil changes or poor oil circulation through your engine due to a faulty component I hope you guys are ready for some engine porn because I'm going to show you how this whole oil circulation thing works alright now I wish I still had the oil pump for this engine which basically sits in the front of the engine and it's driven off the crankshaft so here if we were to go underneath the engine you can see right here right and this hole right here this is where the oil pickup tube attaches to so the pickup tube is dangling off of there in our oil pan it sucks in oil from there through here and right here on the side of the engine you can see where the oil is going from our oil pickup tube to the front of the engine right here so oil is sucked in through this passage into our oil pump from there it fills up our oil filter and then from our oil pump is pressed out or push that through this hole now from here it looks like it goes through this passage down here into our crank shaft itself and starts lubricating our main and rod bearings and lucky for you guys I have a crank shaft which is actually from the same exact engine sitting out right here so yes pressurized oil finds its way from our oil pump into this hole right here and then from this hole it travels through the crankshaft but rod and main bearing journals of our crankshaft and lubricates all the bearings that are on these journals so if you don't change your oil on schedule you're going to have poor lubrication of these bearings and they're gonna wear out prematurely and when they wear out they're gonna be is gonna be extra slack where they connect to your crankshaft and as you're driving or the engine is running you're gonna have them rocking around and making that knocking noise or worse yet if you don't have enough oil in your engine you're not gonna have any lubrication of these bearings and they're gonna wear out very quickly and same thing can obviously happen with a bad oil pump or if you have clogged up passages for your oil where it's traveling through your engine but those in general happen over time they don't happen all of a sudden you're gonna have some warning before your engine is completely dead so it's important to pay attention to that low oil pressure light if it ever comes on alright now as far as what all additives you can use to try to fix a rod knock well first of all if you have any type of rod or main bearing knock there is nothing you can do short of rebuilding the bottom of your engine when it goes about trying to fix it as in if this bearing is worn out so thin where there's enough slack here to make that knocking sound you cannot rebuild this without replacing it in other words defy the laws of physics now however if you catch a rod knock early enough which requires you being very in tune with how your engine is running and all the different noise it's making what you can do is to simply use a heavier we're thicker oil or some Lucas engine oil treatment which in layman's terms basically thickens your oil you try to dampen the noise that's coming from your connecting rod hitting your camshaft every time you crankshaft spins around but again this requires you catching it very early and also annoying and being sure that it's actually a connecting rod bearing that is starting to wear out because if let's say if it's a lifter hydraulic lifter that's not getting enough lubrication if you put thicker oil in your engine you're just gonna simply make that noise worse in so many words if you have an engine rod knock your engines fine all right now let's move on to more pleasant situations which is if you have some lifter or let's just say upper engine noise alright so when you hear people talk about lifter noise they're generally talking about hydraulic lifters so for example on this engine you can see all the lifters right here these are driven off our camshaft which goes through here as the camshaft turns these cam lobes press against these lifters which in turn press against these push rods that come up here and work these rocker arms opening and closing our valves now when you have hydraulic lifters pressurized oil again from your oil pump is a forced into the inside of these lifters which basically allows for a cushion for where this push rod on this setup is sitting at the top of this lifter and the bottom part which is against your camshaft so generally speaking on these hydraulic lifters there's no need for adjusting the valve lash in other words these lifters are called self adjusting lifters and the way pressurized oil is supplied to these lifters is again it comes through here goes through the oil pump out here goes through here and I think one side as I talked about earlier goes to the crankshaft well one side from this end comes inside the value of this engine and if you look closely you can see the passage where it travels through here and feeds all these lifters on this side there's another passage on this side as well so if I were to remove this lifter again you can see the oil right here from this oil passage that folds up there hydraulic lifters on this car here's another example of a hydraulic lifter but this one is at a roller hydraulic or self-adjusting lifter and here's where oil gets to the inside of this hydraulic lifter now before you blame your hydraulic lifters for your upper engine noise and start adding oil additives of which we're going to talk about in this video it's very important that you make sure not only your engine has lifters but that they're hydraulic lifters because there are engines out there that have lifters but they're not hydraulic they just flattop mechanical lifters and it's going to be the case on this 2009 Pontiac g3 so here if we were to remove our camshaft we see all our lifters that on the surface look pretty much the same as the hydraulic lifters but these are flat mechanical lifters and as you can see there's no hole or any other place for pressurized oil to get into inside of this and work this as a hydraulic lifter so pretty much as the camshaft turns the cam lobes Chris down on the flat surface of these lifters and these lifters in turn will press down on the valves opening it up but even these mechanical lifters will need proper lubrication so that they can move up and down smoothly and not make noise but as a general rule of thumb these don't make hardly any much noise as the hydraulic lifters that we show area also if you find that you do not have hydraulic lifters but you still hear some upper and engine noise or ticking noise that noise might be coming from your engine needing valve lash adjustment one of the older engines your valve lash or the space that's between the top of your rocker arm and your valve is adjusted mechanically by the way of this screw and this stud so this is a solar head off of a I believe a 2002 Subaru so your camshaft is obviously driven off your crankshaft gear by the way of your timing belt as that turns the camshaft lobes which are underneath these rolling rocker arms that you guys cannot probably see will press against these rocker arms forcing them up and these move up they pivot off of this and this end will press down on the tip or the top of your valves forcing them to open now since these studs at the end of these rocker arms cannot rest against the top of your valves there's a very small amount of predetermined space that is supposed to be between these studs and the top of your valves and that's called your valve lash and you can take your valve lash using some feeler gauges so basically with first make sure that this rocker arm is not pressing against this valve and that this valve is closed or in other words all the way up then you would get your fill of gauge between the stet and the valve and if that spacing needs adjustment you would loosen this nut and then by using a screwdriver you would turn this stud here clockwise to decrease the space that's here or turn the counter clockwise to increase the space here so yes if you're hearing top-end noise or especially taking noise from your engine and your engine has these rocker ons with these adjustable valve lash setups then it's a very good idea to adjust those and that should get rid of that ticking noise all right so now let's say you checked and you do have hydraulic lifters and still suffering from top-end engine noise as far as what can cause hydraulic lifter tick or noise obviously again low oil pressure low oil and more importantly their use of wrong type of oil or in other words thicker oil then what your engine specifies for so let's say your manufacturer calls for 520 and you put 10 30 or let's say if because we talked earlier your mistake lifter knock or left there noise for bottom end noise and you put heavier oil in your engine well guess what as you can hopefully see the hole or the passage where oil finds its way to the inside of this lifter it is tiny so if you put thicker oil inside your engine it's gonna have an even harder time finding its way to the inside of this lifter lubricating it so that this bottom part of this lifter is not smack against the top and making that lifter tick or noise now you might be thinking then why not let's put a thinner oil inside the engine so that it lubricates or it can get inside this lifter easier so that we can get rid of that noise I highly recommend against that because if you put thinner oil than what your engine specifies for then you run the risk of not properly lubricating your connecting rod and main bearings wearing them up prematurely and therefore running your engine entirely now however if you do have noisy hydraulic lifters and you've ruled out any obvious mechanical failures like a bad oil pump or maybe even low oil liver inside your engine the 10 noise is probably to build up or partially clogged oil passages from your oil pump to your hydraulic lifters or maybe dirty hydraulic lifters themselves now if you suspect that to be the case you can try to clean the oil passages inside your engine using an engine flush agent now what I like to use is this liquid moly ProLiant engine flush make sure the instruction on these very carefully and follow them to the letter I also don't drink these you would think this would go without saying but if it did they wouldn't put it on the can and if you're interested in buying these as far as I know they don't sell them at autozone or o'reilly or any other local auto parts stores and you're gonna have to buy them online if you want to know where I got these from I put a link to where I got it down below in the description box so you can click on it and check it out for yourself now as we talked about earlier if your cars been sitting for a long time and then you go and start it and then it starts making the lifter noise and it doesn't go away do not panic and start adding oil additives to your engine and simply because all the oil from the inside of your lifters has drained out and now it's simply going to take a while before all of them fill back up and stop making noise now with that sit let me take you over to a real-life example of what we just talked about now some of you know I recently replaced the timing belt and all the camshaft seals on this 2006 with the 2.7 liter Biturbo engine and since I documented and made videos out of each step for this procedure this car ended up sitting here for quite some time and therefore all the lifters in this thing are empty of oil and so are the camshaft chain tensioners so what we're going to do is to start the engine and see how long it takes for the lifter noise to go away and if it doesn't we're going to go on to me using that additive we talked about so there we gotta let this camera sit exactly in this distance from the engine and come back and check every few minutes to see whether the noise then you can hopefully hear goes down or not so it's five minutes later and you know play till we've had just a slight bit of improvement in the amount of lifter noise but we're gonna keep running this and now it's been ten minutes after we start our engine and I'm sure you guys can hear a noticeable difference in the reduction of lift or noise from this engine and now it's been about 25 minutes after we started this engine and it can hopefully tell there's hardly any lift or noise and now that it's properly warmed up let's go ahead and give it a few revs to so there you have it I think we covered a lot in this video if I missed anything I'm pretty sure those net Pickers out there we're gonna point out in the comments section down below and if you like this video make sure you give it a thumbs up and if your sister was the first girl you saw naked give it a thumbs down and also check out these other videos of which I put links to on this side of screen there will also be links down below in the description box as well alright thanks for watching I'll see you guys [Music]

Channel: Ratchets And Wrenches

Views: 1,667,784

Keywords: Rathcets and Wrenches, RnW, Engine ticking or cluncking noise repair, engine rattling noise fix, how to fix bad lifter knock, how to fix lifter noise, how to fix lifter tick, how to fix noisy hydraulic lifters, fix lifter tap with stp oil treatment, how to use engine flush, best line engine oil treatment, how to find engine noises, how to fix an engine knock, how to fix a rod knock, does lucas oil work, best engine oil additive, best oil additive for engine noise, bearing knock

Id: gt-_JPhAdyM

Length: 14min 26sec (866 seconds)

Published: Thu Oct 19 2017