The more video's the merrier!!

Great to watch you at work. Looking forward to more of the same.

I love watching your channel and like how you guys work, but I have to say please treat yourself to a new copper, hide hammer, a colleague of mine had to have a piece of copper removed from his thigh by a surgeon from his worn out copper hide hammer after a piece flew off when used in anger. Andy AA Keep up the great work chaps 👍

A Barum engines video is always welcome Lee, yeah thanks.

We used to soak inserts in liquid nitrogen, saves knocking them in.

Lee, correct me if I'm wrong but it looks like that engine has had a past encounter with valve seats coming undone.

The “Guys” are back in town….. 😊

I look forward to all of your videos. Be good.

The no more ‘guys’ is going well 🤣🤣🤣

great episode! keep em coming

Good job, looks like a winner, all the best to yous and your loved ones

Absolutely no reason to apologize. In a way, today's episode was one of the best. Camera held well, minimal movement, dialogue couldn't be any better even if it was scripted. That was an excellent 'show and tell'. That 'mechanically intelligent' centering cutting tool is fascinating. Jigs and clever tools are magical sometimes, and that one certainly is. I watched that intently start to finish, I don't know if I even blinked. One question: Before using the seat bonding compound, wouldn't a quick clean...either a rotor bristle brushing, or a chemical cleaner (Some paint strippers are excellent for removing burnt on carbon, beware of over-etching the metal if alloy) be advisable to maximize the bond between the insert and host? If done judiciously, the micron loss of surface could be replaced by the thickness of the bonding film. Heat transfer might also be increased, the assumption being the bonding agent is conductive. I can see a case to be made both ways, but if done *carefully*, I'd lean towards prepping both the outside of the insert and receiving hole in the head. . The bonding compound might advise against it, I don't know....

interesting just curious any idea what caused the gouges in the head on the first 2 cylinders. Laughed at how quick you flicked the valve seat away. I had thought that's cut out of centre.

Extremely interesting video ang nice machine also!

One thought for you. When you replace seats the valves can end in a different position creating uneven compression. I always used to CC the head volume at the end to make sure we were where we wanted to be compression wise.

just watched-- Titans of cnc machining -- Smal engine shop fights back. worth a look 5 min clip

Lee, love all the videos you post, and I look forward to the latest one every other day. Have to pull you up though on your promise from last week to refer to your audience as ‘everyone’, and stop referring to ‘guys’. A hard habit to change. Other feedback, would love to see you do a time lapse (condensed to 30 seconds) build of a whole motor, a full crank grind, or even say all valve seats cut on same head. They are great ways to show how much back and forth repetitive actions it takes to complete something. Cheers, John

Interesting self centreing head on your boring jig . Christopher from Down Under

Wow! You've practiced haven't ya...?

You can't make too many videos Lee 😜😂

Nice work. I have watched a few of your videos. I am going to subscribe to your channel. Take care, Ed.

Thanks lee Can you show us how you do the vacuum test?

To remove the seats without cutting into the aluminium, weld around the ID of the seat. As it cools the seat will shrink and fall out. When the new seats are installed, center punch a few places around each seat to prevent falling out. Then the seats can be finished. We used the same technique to remove liners from Isuzu blocks. Dry ice to freeze the liners for installation.

What did you use to heat the heat before fitting the inserts? How about pressure test? These heads are very prone to been porous.

Whatever happened to the guy in America with all the modern equipment he was going to give to you?

Heads got an inlet manifold cast in.

Why don't you run a bead of weld around the inside of the valve seats and the weld shrinks the seat and they fall out just like the big one piece press in wheel bearings?

Have you ever tried liquid nitrogen to freeze the valve seats and then no need to tap them in? You couldn’t use the retaining compound but can keep a good interference fit without risk of scoring the pocket in the head.

Did you manually lap the valves with lapping compound, to perfect the sealing of each one???

Removing the old valve seats by machining looks very tricky and fraught with danger. I wouldn't have the balls to attempt it.

would it be worth using an old valve to hammer the seats in and keep them centred?

Faaakin ell that thor no.3's seen some miles!

Whilst it may be 'accepted' practice to beat the valve guides in and out and valve seats in with a big hammer, it's very crude. You have a very nice Epco hydraulic press there, would it not be better to use that and some appropriate tooling?

The more the merrier.

Would the valve seats need doing to run on unleaded fuel or are they ok as original seats.

Treat yourself to a new Thor copper hammer, that one looks like it's seen better days. Or may be send Isaac on another one of his drunken market missions! By the way, what is the name of the product you use when sealing the oil gallery plugs on crankshafts? Hematite?

Do you ever get any old Ford Pinto lumps come through? Random comment but ....

Guys guys guys..... I thought you weren’t going to say that anymore

6:15 Anyone else notice the state of the hammer shaft? So much for his recent pledge to improve H&S in the workshop.

Don’t think whacking an insert in with an old gudgeon pin is a great idea. A proper cantering tool and correct size drift is the way I used to do it. Otherwise always the possibility of damaging the insert or gouging the recess.

Gave up on the 'guys' already 🤣

Hi, what cutter are you using to skim the heads.?

You should have asked Santa for a new copper hammer

Bet those lotus heads have been skimmed many times must be struggling to get good ones now

How do you align the plane of the valve seat with the perpendicular of the valve guide?

What was the result on the V6 oil pressure switch Thread repair or have I missed a video🤔

I think you need a new copper hammer!!

lee you said guys.mmmmmmmmm

did you heat the head or freeze the valve seats or just bash it all together at room temperature i would have frozen the seats

Warranty 😂

In Deutschland sagt man dazu Pfusch hoch 3

is this engine the rover engine that they put into the 1800 freelander or am I thinking wrong and the more videos the better for me any way thanks for the video

As an aid to pointing things out safely why not get a laser pointer.

I would be happy with a vid EVERY day from you, i enjoy the content, but it must take time collating the vid stuff, out of your busy work day dealing with warranty nutters

Is that an Esprit engine by any chance?

Hopefully a far better job than the notorious head butchers Vegantune of Spalding Lincolnshire who ruined many a twin cam head in the 1980’s (it looks it!)

Love the content but you are still saying 'guys'....

That's the worst looking copper hammer i've seen this year.!!

I love watching your channel and like how you guys work, but I have to say please treat yourself to a new copper, hide hammer, a colleague of mine had to have a piece of copper removed from his thigh by a surgeon from his worn out copper hide hammer after a piece flew off when used in anger. Andy AA Keep up the great work chaps 👍