Jeff Smith's Garage - How to Adjust Valves

[@johnbehneman1546]

I learned so much from you when you worked at Hot Rod & Car Craft magazine !!!!! GREAT CHANNEL!!!!

[@garykollofskisprojects3270]

Excellent Jeff. Again you did a concise and well articulated job of setting valves.

[@johnbehneman1546]

Thank you so much. That is how I did it in high school when I rebuilt my 283. Very simple, quick and easy!!!! Thanks for sharing!!!!1

[@cameronbenty1764]

Glad it helped!

[@michaelparadisis4076]

Thanks Jeff, always a great explanation.

[@HotRodHoarder]

Great stuff!

[@ninjapumkin]

Great video. What are the rules for lashing when engine warm and cold

[@jeffsmith2003]

For a cold engine - generally speaking you will add clearance if the engine block and heads are both iron - around 0.002-inch. If the engine is iron block and aluminum heads then you subtract 0.006-inch from the hot clearance spec. This doubles to 0.012-inch if the engine is all aluminum. These specs came from Crane cams and are generic for all engines and almost certainly will change from families of engines - big-block Chevy vs small-block Chevy for example - but at least will get you close. So for an aluminum head small-block Chevy if the hot lash is 0.018-inch then cold would be around 0.012-inch. Aluminum expands are roughly twice the rate of linear expansion compared to iron which is the reason the specs change based on aluminum or iron engine components. Hope this answers your question. Thanks for asking!

[@scotchyscotchyscotch569]

Does it matter if you’re on compression stroke or exhaust stroke of where the pistons cycle is at doing these EOIC sequences?. Making sure the Piston 1 is at TDC or something someone told me and every single piston is the same then onwards following the firing order of the pairs of rockers. I am getting confused with this and doing the EOIC sequence because I can’t start her up (I think I’m doing something wrong with the valve train sequence). Can you do the EOIC tightening the Intake valve when the exhaust opens, then keep cranking until you see the intake open and then about to close to do the exhaust tighten. While doing this does it matter where the piston is at during doing both on every rocker pairs?. I have a feeling I’m starting the EOIC sequence during the exhaust stroke and not before the compression stroke (TDC). I got told my v6 engine firing order is 1,6,5,4,3,2. (drivers side is 6,4,2) so 6|5 4|3 2|1 Front of car so that when number 1 is at TDC on the compression stroke the valves on 6 should overlap close (both the exhaust and intake are closing at the same time). So if this is not the case, I’m on the exhaust stroke with number 1 cylinder I believe. I haven’t tried looking at 6 when it does this yet, so I will give it a go doing this EOIC method in the video. I believe I have to make sure the piston is about to do its compression stroke on 1 when I do the tightening using the EOIC method 🤔

[@Ordrock7]

I was in the Marine Corps with your brother

[@jeffsmith2003]

Excellent - I miss him every day. I used to ask him - "Who is the best BN in the Marine Corps?" - and he'd always answer - "I am!"

[@Ordrock7]

@@jeffsmith2003 One summer day back in the early 80's i was fishing at Silver Lake i believe. I was out on the lake in a small boat when I heard the familiar sound of a Marine A-4. I looked up and saw one of the jets down on the water skimming the surface throwing up a huge rooster tail. On Monday morning i see you brother at the medical clinic and he comes up to me and we chatted. I told him about the A-4 and the rooster tail and he tells me to be quiet about it. He said it was him. What a true Marine Mustang he was. I was an instructor at a classified unit that taught about air launched special weapons. I had your brother and some other Marines from his squadron for a few weeks teaching them how to load Nuclear Weapons on their planes. I didn't know that he passed away, I am truly sorry for your loss. GOD loves his MARINES Semper FI Scott Pastere Southern Oregon