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How much pressure needs to be in the engine to keep the valves up

Both of the cylinder heads I just took off a SBC 305 were cracked. Praying there is no block warpage but I’m guessing there may be if the heads heated up so much they cracked

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Excellent

Excellent video!! Can you explain how a 12 volt vehicle system can have multiple 5volt references . I was taught in the 70s that each sensor draws some of that 12volt . It seems impossible in my little mind how it covers all those imputs and outputs 🤷🏼‍♂️ lost

Not all plastigages are the same each color represents a different clearance and measurement

Thank you

May 26 2024 , hello , I have 2006 gmc 1500 Savana 5.3L v8 . How do I check the ECM and the knock sensors voltage ? The power come from the ECM threw wire to Knock sensor. The knock sensor is grounded by it being screwed to the engine block . The reason why I’m asking , because the knock sensor show low circuit.

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How much is ok to use with MLS gasket? How much to not even brother taking to machine shop? V8 (straight 4 x2) and V6 are different, right?

What about piston pin width Clarence? Is it important?

Holy sht, I had to scroll for 10 minutes to find something about cam bearings that was some kind of cam in block bs featuring a boomer with a hammer.

Much appreciated

the dial indicator plunger has some pressure/tension on it as it's pushed in a little, if you relieve the tension and the reading will stay zeroed, and won't deflect until warpage encounters it

Thank you

Is there a torque requirement for carrying out end float?, if so how to arrive?

Thank you very much, for great tutor n video...

My customer just kicked my ass. Cause I cut his cyl head in half

If you can't push it through it's to tight. If you dip the valve tip in thick grease and drops in all the way on its own it's to loose

This explains alot as I'm now up to speed, awesome.

Interesting 🤔!

hmmm.. the camshaft being so long, its bend may upset that way of estimating clearances; i would never trust it there; for ONE rod bearing yes, just not there; a micrometer and a bore gauge, even the cheap telescopic ones,would be my choice; BUT i mostly just use my eyes: has it been living for a few years? still polished,no scratches? OK

Alot of knowledge here.. thanks sir

Is the crank lubed during this?

This video should have about 5 million more views....straight to the point and spot on knowledge

Whats the bearing test tester called?

like

Iv found you have added pulling strength by adding time certs as the base expands hold it in place digging in plus the bonus of them being stronger them aluminium down side more likely to brake a bolt inside ahah

Congrats for vídeo!

This is micrometer, not a dial indicator.

Incredibly useful 🙏🏾

This has been so helpful. It's been pretty hard as an electronic newbie to understand what voltage drop is and how it affects circuits. I now have some hope that my problem is not my ecm. Thank you!

Nice video, but you never mention how you had "current" going through the circuit, "by turning the ignition key to the on position" or what a good reading should be, on the dvom, when you connected the red lead on the battery positive, and the black lead on the connector positive pin, with the key in the on position. A good reading would have been zero volts, or close to it, you never mentioned that when the dvom meter showed a 12.6 voltage drop, the same on the negative side of the connector. I did see where you mentioned if it was below .5v that was ok, but you really never mentioned that you were dropping 12.6v on the positive side when it was showing on the dvom. That reading of 12.6v, I am sure confused a lot of newbie viewers, and should have been cleared up that that was a voltage drop reading, and the reading should have been zero volts or close to it ,5v tops. I notice most videos on electronic troubleshooting do the same as what you did, they must assume we know what a good reading should be. Other than that your video was very good and clear. My two cents, I guess I am a nit picker.

Should there be a gap between the piston and rod on the wrist pin?

Thanks for the vid, it helped so much. On toyota 1zz-fe is the same process? Need to push to a side the connecting rod to measure with feeler gage?

Time serts chamfer tool isnt very good-DO NOT REMOVE TIME SERT! Just grind down top of insert flush👍 Trust me!!!!

Did you just call it an 04 vintage

Excellent explanation!!!

Ugh, I'm trying to avoid doing it but my Camaro throws knock sensor and o2 codes all day and it drives me nuts ! I checked most grounds on it except the hidden ones on back of heads and everything checks out yet I still get codes after just 1.5 miles driven... Now I'm gonna chase down the PCM wires and try some 100k Ohm resistors to test everything yet AGAIN. Thank you for the clear video !

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Warpage measuring gage and datalogger ! ua-cam.com/video/UWpCc4t-7sc/v-deo.html

Good 👍👍👍👍

clear explanation. from phlippines

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This dude from the future 7 yrs old vid and he got a smart watch lol great video

Hi Scott and thanks for sharing. Is there other acceptable straight edges we can use? Cheers from Motown.

This video absolutely helped. I'm not an auto tech. but I am an electronic technician turned marine electrician who's currently looking to get auto electrical diagnostic and ECM troubleshooting and repair. I think my 24 years in the electrical / electronic field can be transferred over to automotive - that I'm confident about. so yes, I found this video to be extremely informative - especially the part which explains that most voltage drops occur on the *ground* side, due to corrosion. Of course I also understand that it can happen on the power / positive side as well but in any case, these tests are extremely important, so than you for sharing.

Thank you.