That was awesome for what it takes to replace valve guide if they're worn it's worth doing I always thought there was more to it than that cool video thanks for showing it I really enjoy watching your videos actually learn something every time I watch them thanks
A healthy dose of PB-40 ;) . . . I'm a lifetime Ford guy who's recently become interested in AMC and Dodge Magnum V8's , but, I'm starting to see the appeal of those LS engines. Very DIY friendly. Maybe an LS actually would be the right choice for my Jeep WJ project. Interesting. Very informative, and greatly appreciated. Thank you.
You sr have shown more info on ur vidoes than i could hope to cram into my head, thanks for that! Any machine questions this is the channel to go to! My best friends father is a machinist and he used to make airplane parts then in 1989 he was hired to help machine and build all of the parts for jurassic parks dinos always thought that was so cool
Great info and the showing of the guide replacement. I have bronze guides in my street car and steel in my drag car sorta backwards but I like the steel version the best .Great video with some knowledge backing it . 👍
I had a machine shop put valve guides in a shovelhead. They didn't stay in. But sence i has it done at a Machine shop because i wasn't sure of myself. I like to never figured ot out. Thought the electronic ignition had gone bad, Put points back on it. Set, reset, set, reset timing. Bought another bike put twenty thousand miles on it. In a Couple of years, then that winter Took it all apart. SON OF A ..... thats what it was the hole time! Had larson of KC MO Redo them for me and Dremble the After market chrome boxes to fit my Spring choice. Presto second kick. Wow black betty" bam a lamb🎶
Love your no-nonsense approach/attitude. Wondrful videos, look forward to every new one! Two questins, what are you usiing for your press fit lubricant, and is it ever okay to use Sunnen/Goodson style reamers on cast guides?
I'd drive'em out the same direction you drove them in! Out through the port, in thru the top. There's always a ridge of carbon on the guide in the exhaust's pocket, and even intakes have it too sometimes.
made me laff . guide i drove out of a WD allis chalmers head .....6x6 wood block base , 4lb hammer to even MOVE them 😅😅😅.... dang that was easy to watch yours ....
Do all engines use a "sleeve" like this & when is it recommenced to change them? If they aren't expensive I'd think you'd want to go ahead whenever you change the valves but I really have no idea - interesting video , ty much
What is the advantage to bronze guides? I have them in a Toyota 22R with .50 lift and double valve springs...only lasted 50,000 miles...I imagen double valve springs add to wear???? Would like to go back to OEM iron guides but head builder states ya cant with the .50 lift cam but with .440 lift I can use iron and single springs??? Want to keep the double springs....but would like a bit more longevity
On my Falconer V-12 head going on my Chevy inline 6 292 I ordered it unassembled so I could do some polishing on it. I noticed the valves don't fit in the guides. Does this mean they need to be honed? They appear to be bronze. I didn't try real hard. This head was $6K. Thank you for your time.
Before going after it with a hone. Do As Powell demonstrated. Measure valve stem diameter to verify correct valve size. Measure valve guide Inside diameter with a tool such as Mitutoyo 526-123 or similar to verify the actual guide inside diameter and also to verify is guide is straight. If a guide is bell shaped or tapered it should be replaced. This will give you any idea of you can hone the guide or if you need to go down the road of reaming or replacement.
Watched a vid of a guy that wiped out a flat tappet cam on break in on a 304 AMC. He claims there’s no coil bind etc. Q. How much would he have in a solid or hydraulic roller for that motor vs tappet?
@@powellmachineinc3179ok SC. I watched some more of your videos. I'm in 'the UK' and have just bent a valve in my Vivaro van (you probably won't know what that is). Anyway I've got the head off, bought the valve spring compressor clamp and removed the bent valve but I've noticed the valve guide is an oval shape at the end. I assume I should replace it. Watched this video then watched another and he's panicking that he's demonstrated doing it with a hammer and saying that it's wrong and they must be pressed out at a machine shop. So now I'm confused as to whether I can do this with a punch and hammer and whether that's going to damage the head. Also not sure how far to knock it back in
Single biggest thing i notice on all of your videos is ATTENTION TO DETAIL! ive watched alot of videos on other channels and while they might have all the best parts going into a motor some of the techniques ive seen other builders use is just cringe worthy!
