Mannn I’ve been doing this for the past year at my shop, I’m glad to see someone else doing this honestly. I’m 22 & have been working at a machine shop for going on 4 years. I haven’t put a runout gauge on it like you did but I always noticed that it made the vacuum gauge reach max quicker. Sometimes my boss is like “wtf are you doing” haha but I do it whether I’m doing a valve job with stones or on the guide machine with a cutter. The way I look it especially when people say “oh well when the head is torqued or, when it gets heat in it” I think that’s all the more reason it should be done. It also saves a lot of money in stones because you’re only spinning it by hand and not putting much load rpm on it. I just use it to basically polish & true up the seat, it also gets rid of any chatter marks especially on nickle chrome seats or other harder seat alloys. I may not have dozens of years of experience doing this kind of stuff but I can see with my experience so far of machining/working on cylinder heads on almost every day in the past few years that there’s no reason not to do this.
Good Tech Chad. I always belived in grinding seats. Nice finish process for sure. The Sioux is the best, in my opinion. Thanks for sharing. Have a great day. 👍
So seems funny that many won't use a stone on seats because they think the abrasive embeds in the seat and ruins a valve job...but they're more than happy to use a stone hone in a valve guide....
I use the Sioux stones and holders with water cooling, i get mirror finish on the seat and stones last longer. I worked as a teen in a factory that made engines, all their seats were finished with a grinding process.
@v8packard hall toledo leaves the best finish bar none....but the mchine hanging off the side of a pilot ad having to hold against a spring to counter the sag ain't the vmbest for runout
@@jaythorne5208 Hmm. Used one, once. Seems to me it clamped down after locating on the guide. Maybe I have that wrong. I was impressed, and runout was only .0002-.0003.
@v8packard maybe mine is worn out....if I had a new bushing and a carbide pilot it might be better.....but still don't like the machine hanging off the side....for large diameter seats it cuts smooth as silk tho...
Nice. In Stock and Super Stock (and other classes) you can tell by how far under the index you are, whether, or not, the engine makes power. If you are 1.00 under, that's good, if you are, .100 under, that's bad. LOL!
Mannn I’ve been doing this for the past year at my shop, I’m glad to see someone else doing this honestly. I’m 22 & have been working at a machine shop for going on 4 years. I haven’t put a runout gauge on it like you did but I always noticed that it made the vacuum gauge reach max quicker. Sometimes my boss is like “wtf are you doing” haha but I do it whether I’m doing a valve job with stones or on the guide machine with a cutter.
The way I look it especially when people say “oh well when the head is torqued or, when it gets heat in it” I think that’s all the more reason it should be done. It also saves a lot of money in stones because you’re only spinning it by hand and not putting much load rpm on it. I just use it to basically polish & true up the seat, it also gets rid of any chatter marks especially on nickle chrome seats or other harder seat alloys. I may not have dozens of years of experience doing this kind of stuff but I can see with my experience so far of machining/working on cylinder heads on almost every day in the past few years that there’s no reason not to do this.
great info,,,thanks
Ground and lapped is the only way to go! I still have an old Black & Decker valve seat gringer.
Good Tech Chad.
I always belived in grinding seats.
Nice finish process for sure.
The Sioux is the best, in my opinion.
Thanks for sharing.
Have a great day. 👍
So seems funny that many won't use a stone on seats because they think the abrasive embeds in the seat and ruins a valve job...but they're more than happy to use a stone hone in a valve guide....
Nice runout gauge, I have some of Ricardo's other tools, very high quality :)
Smart man, just because you don’t hear or see chatter doesn’t mean there aren’t little imperfections from the carbide cutter.
Very nice demo. I wondered what your procedure was, turns out my first employer in this industry showed me the same procedure in the early 90's.
I use the Sioux stones and holders with water cooling, i get mirror finish on the seat and stones last longer. I worked as a teen in a factory that made engines, all their seats were finished with a grinding process.
Awesome Chad! I've never seen one before. I'm shure my friend that owns a machine shop wil be watching this video. Thanks
Nothing cuts valve seats more accurately as A Sioux BB1702 Ball Bearing Holder and Stones. Argued with many but I know Likewise Chad.
What about a Hall Toledo orbital grinder?
@v8packard hall toledo leaves the best finish bar none....but the mchine hanging off the side of a pilot ad having to hold against a spring to counter the sag ain't the vmbest for runout
@@jaythorne5208 Hmm. Used one, once. Seems to me it clamped down after locating on the guide. Maybe I have that wrong. I was impressed, and runout was only .0002-.0003.
@v8packard maybe mine is worn out....if I had a new bushing and a carbide pilot it might be better.....but still don't like the machine hanging off the side....for large diameter seats it cuts smooth as silk tho...
@@jaythorne5208 I kind of want to use one more. It wasn't fast, but it sure made a nice seat.
Thanks for sharing this video with us
The valve will still seat but it bends the valve , wears the guide and possible valve head drop.
What will?
Great video !!
Pull out the arbor and reinsert it, will your .0005" will be back?
Nice. In Stock and Super Stock (and other classes) you can tell by how far under the index you are, whether, or not, the engine makes power. If you are 1.00 under, that's good, if you are, .100 under, that's bad. LOL!
👍
Do they still make those runout gauges?
nice!
Yes it’s a
Bunch of BS torque the head down the seats change shape and then flow water threw it at 160 deg 😳
👍🏻