I was so tired of trying to understand this in the Haynes manual, finally a video.
@jerryh824 жыл бұрын
Matt just wanted to let you know your videos are some of the best I’ve seen very informative I’m about to buy a 2005 Nissan spec v and make it a track car for some fun. Keep the videos coming!! You have a true gift.
@MattShaughnessy64 жыл бұрын
email me if you ever need help.....highgrooveauto30@gmail.com.
@johnnylee9486 жыл бұрын
You know your stuff,great video!!
@chris551302 жыл бұрын
I know what you meant LoL. Good video. I'll have to rebuild my QR25DE one day. It's in a 2011 Frontier. Thanks for the content 👍
@StilettoSniper5 жыл бұрын
Matt, great video, I am learning a lot from you. I have a 2003 Sentra with a 1.8L that has a leaky head gasket at 92k miles. I'm am a mid-level DIYer that's been working on cars since the late 70s and I am learning as much as I can about this particular repair and what's involved before making the decision whether to attempt it myself. My 1.8L engine uses adjustment shims that sit on top of the bucket lifters, but the adjustment concept is similar from what I can tell. Two questions I have about what you have stated in this video, that I want to be 100% sure on: #1 You said that when the spec is .014" and you can get a .017" feeler gauge to fit in, you need a bucket lifter that is .004" thicker. But isn't .004" too much? Did you mean instead a bucket lifter that is .003" larger since .017 - .014 = .003? Or am I over-analyzing it here? #2 You said that if the spec is .014" but you can only get a .010" feeler gauge to go in, you need a bucket lifter that is .004" thicker. But, did you really mean instead to say .004" thinner? I'm thinking you need more clearance between the lifter and the cam lobe, not less, and this would require a thinner bucket lifter. Or am I not looking at this correctly? Thanks for putting out great content, you and other folks willing to share their knowledge are a blessing to guys like me.
@rickwhite2946 Жыл бұрын
Thanks Matt! Great video!
@JCortes0012 жыл бұрын
Great video. One of the best ive found. So, even when the buckets are new, they are different sizes???
@AutoBodyEverything3 жыл бұрын
My 500 ho spec v lost compression in one chamber last night. dont know what it is yet but I still made it home and is running. with no spark, I cranked it and i can obviously tell one cylinder is down. Im hoping for the LEAST please GOD I need prayers this car is MY LIFE. IM about to make some content right now....
@xANGRYSHOCK7 ай бұрын
Where can I find a labeled diagram my buckets got mixed up
@robertcarlton87125 ай бұрын
That is a sweet hoist on the Sentra. Is that to support it also when you do engine mounts ? Can you drop an engine with it sitting across the bay like that?
@mahendranpillai9642 жыл бұрын
Thank you good information
@dago888814 жыл бұрын
if yu check the lash on a rebuilt head ie valves laped most likely if you run the motor and some are set o16 after it runs a few trips it will be tighter dew to seating also i have mig welded the end of valve stimes them ground them to tighten sloppy lash of course many cant do this thanks
@sfcd47573 ай бұрын
Could not checking clearance after reinstall cause the engine to not start at all? Im starting to think i overlooked this part and blindly put everything back and i cant get it to fire up
@motersickel4 жыл бұрын
If you do one valve at a time you don't have to worry about bolting and unbolting your camshaft caps 300 times and strip your threads out in your head ..leave all other buckets out except for the one you're doing just lay the camshaft in there.. only 1 cam cap needed with lobe facing up... that way you're not wearing your threads out.... just something I noticed when I was doing one... and as for lubing.. I would worry more about lubing the journals instead of the lobes.. turning that cam under pressure pushing the valves open with dry journals would cause more damage to that head than dry cam lobes.... not trying to criticize you or anything it's just these are things I noticed doing this over the 26 plus years I've been working on cars
@dago888814 жыл бұрын
gotcha even an oak board and c clamps
@billcork11442 жыл бұрын
Howdy Matt, so could you please advise me on the size of the exhaust lifters feeler gauge size thanks keep up the good shows, they are very informative
@useribp Жыл бұрын
Does the new generation qr25de engines need valvle clearance or thy have hydraulic lifters ?
@fernandohood55423 жыл бұрын
I always thought clearances would get bigger. Can this be done with the engine in the engine bay?
@renejacques82882 жыл бұрын
Would you know why when I put my #1 cyl. at TDC and the dowel pins on the camshafts facing up as instructed, my valves seem to make contact with with the pistons on a '95 Maxima?
@SmashThatPoato5 жыл бұрын
Hello, working on a 2004 nissan altima with a 2.5 L engine for the feeler gauges I was wondering if you could tell me the correct gauge size for the intake and exhaust side, I'm having trouble finding it online. PLS HELP.
@derekthomasgriffin4 жыл бұрын
Kelly Trujillo www.sbintl.com/tech_library/tech_bulletins/TT00008_valve_lash_adjustment_for_2002_2008_Nissan_2.5L_QR25DE_engines.pdf
@stevejohnson71323 жыл бұрын
I Matt. I appreciate your time with this and know it's a bit old now but I'm wondering if you'll take a moment to clarify? You have a cold measurement at 0.014" but the service manual I have for the '05 Sentra 2.5l gives a range from 0.009-0.013" intake and 0.010-0.013" exhaust. Can you tell me what source you get your specs?
@MattShaughnessy63 жыл бұрын
The sticker under the hood.
@Mimmz15 жыл бұрын
Great video and tips... Would that same sequence work on nissan V6 as well?
@MattShaughnessy65 жыл бұрын
double check but yes basically. check me out on www.patreon.com/Matthewyourfriendlyneighborhoodtechnician if you need or want an y one on one help with a project. thanks!!
@specialk97523 жыл бұрын
These bucket lifters have a little pinhole on the top, does it matter where that pinhole is located when installed? I'm hoping someone can get back to me asap. I didn't notice them when I took them out 😬
@seethesky282 жыл бұрын
You'll be fine. It will actually rotate in its seat it's like vent almost
@iirviingg5 жыл бұрын
@dugbert...It if was hydraulic it would need no adjustments
@MattShaughnessy65 жыл бұрын
if it needed no adjustments then why does the manufacturer provide clearance and adjustment values for this engine under the hood along with service intervals? so many people are wrong when it comes to this.what I think people mix up is pre loaded hydraulic lifters with lifters that use oil to keep clearance
@iirviingg5 жыл бұрын
Yeah... That's why this engine does need adjustments with new buckets... I'm working on mine right now
@azmisalleh64655 жыл бұрын
so called solid lifter. Nissan produced 26 sizes to match original valve lash spec. Well done bro
@MattShaughnessy65 жыл бұрын
its a pita aint it. fun though I do enjoy it. let me know if you need any help
@RajSingh-ft2bq5 жыл бұрын
@@MattShaughnessy6 mat wat is Der clearance on Toyota 160! 4afe
@chris551302 жыл бұрын
If you got a gap of 0.010 and you're trying to get 0.014 gap you need a bucket lifter that is 0.04 thinner LoL.
@King-kx3wo2 жыл бұрын
Hey brother just ran up on your video, I have a quick question, I have a 2009 Nissan Altima, 2.5 s, my question is when I first start up it make a knocking sound and it quickly goes away, then when it gets to temp I can get around 2500-3k rpm and the rattle, knock comes back only at those rpms...it has 201k miles on it yea it's a little worn out lol but is it valves or rod bearings? It still has plenty of power, and no missing or burning oil....I'd just like to feel safer knowing kind of what it is lol I'm thinking valves but again, I'm not sure 100% thanks!! Great video btw, it'll help me if and when I need to do this job
@matthewcurtin52902 жыл бұрын
I have the same issues with valve rattle at start for 2 seconds and a little rattle around 2500 to 3000 rpm. Runs smooth in other rpm range but slight misfire at idle with AC running. When AC compressor shuts off, Engine stumbles a little.
@matthewcurtin52902 жыл бұрын
Did you figure this rattle issue out?
@keaflord Жыл бұрын
Cam phaser is the typical issue for 02-06 qr25’s with that rattle at cold start and operating temp under load.
@keaflord Жыл бұрын
@@matthewcurtin5290read my other reply didn’t tag you
@jregamey5 жыл бұрын
Thanks
@derekthomasgriffin4 жыл бұрын
Does anyone have the order, or at least the specs for the 1GRFE 4.0 V6, more specifically a 2004 4runner? I lost my footing and a few of the valve tappets fell out and I don’t know where they go, lol. Any help is appreciated!!
@dugbert55 жыл бұрын
Are those lifters hydraulic?
@MattShaughnessy65 жыл бұрын
define hydraulic because I already know what you are thinking.
@dugbert55 жыл бұрын
@@MattShaughnessy6 The reason I ask, I have a 2012 Rogue with noisy cold eng tap and I was thinking of a clogged lifter check valve. I'm trying Seafoam but I don't hold out too much hope.
@sandyshoremann75245 жыл бұрын
@@dugbert5 If they were hydraulic he wouldn't be doing valve clearance on them. I had a '14 rogue and the engine IS extremely noisy when cold. Running a larger filter ( like that for the V8 Armada/Titan) will help. The injectors are noisy when cold too. So its normal for this Engine.