How To Grind/Seat Valves and Replace Seals

How To Grind/Seat Valves and Replace Seals

TheCousinDan shows you how to replace your valve seals and grind the valves into a proper seat in your cylinder head.

175
Like
Save


Comments

mehmet ertürk says:

perfect ,,thankyou ; tihis is you a macanic doctor.. :)

Ilya P says:

Lol it is against Adsense rules to say Click on my ads.

rrk2rider says:

Nice job! Thanks!

Robert Starke says:

Working on a 67 Mustang V6 with my son. This video is great. The comments
below also helped. I watched your video and went out with my son and
removed the valves from the head. We are now going to take the head to the
machine shop to have it resurfaced. 

Gene Kinnick says:

Daniel, seems like a better way to remove the keepers would be with a magnet
and / or a crook-nosed pair of needle nose pliers. Same with re-install.
Hard to make your fingers cooperate while trying to push spring down, and
if you get the spring down far enough with the clamp, the keepers should
almost fall out anyway.
I have to replace mine and don’t want to remove the heads so, your video
was very helpful. Thanks!

Don Hiebert says:

Great video on valve seating! I have a Toyota 1.8 Cylinder Head and was
using compressed air with the head inverted and oil on the valves to look
for leaks. I placed a towel around the air nozzle from my compressor hose
and saw some oil bubbles in the valve seat when blowing air into the intake
ports. Should the valve seal well enough that air from the top of the head
to stop the air in this situation? I guess I don’t know what the PSI is
here as the compressor is 125 PSI but the towel may only hold 10 or 15 PSI.

tempest411 says:

On an engine that’s approximately thirty years old, why not just get new
valves, guides, springs, retainers, and keepers as well? I’d have had the
head hot-tanked and zyglo tested to insure the head casting was absolutely
sound. In my years at an auto parts store I observed 90% of problems ever
encountered with rebuilt engines were in in the head. It was either a
broken spring or a dropped valve-regular rebuilds don’t include new valve
train. It’s an extra cost option that I strongly advise.

deepsquat600 says:

25 years ago I worked in a machine shop..we took the springs and keepers of
with a deep socket …about 3/4 ..put it on top the valve spring and smack
it with a hammer…that way you only need the tool for reassembly ..10
times fast disassemble

mrh22a says:

i reckon an easy way to remove the valves and keepers, use a socket and
extension bar,make sure the socket sits flush and big enough to clear the
middle valve and keeper. and just tap tap tap until the keepers fall out :)

Francheska De Leon says:

next time use a magnet

fh276 says:

This video is how to do it, the hard way.
My reasons are this.

A valve spring compressor, that reaches around the head is easier to use.
Valve keepers are easier to remove, a magnet should suffice.
Cleaning valve stems, a wire wheel, on a bench grinder.
Quicker & easier to use.
Lapping valves, should be done with, a suction cup on a piece of dowel,
attached to the head of the valve.
Reason, you can see the progress being made on the valve & seat.
Also avoids potential damage to valve keeper area.
Also no HITTING of parts at ANY time, that should never happen.
If it doesn’t come out, or replace properly some thing is wrong.

Your valve train is an important part of your engine, to important to treat
it as such.

Nathan Schrock says:

Good informative vid. Thanks man

fiends617 says:

get a magnet

Melvin Smith says:

Thanks for the information. What did you use to clean up with before you
did the final assembly?

Don van der Deijl says:

Nice video specially the valve grid part I did with 1200 water proof . The
keepers are the most difficult to place them back, I used a bit of
vaseline 

Jennifer Randolph says:

This is the best video on this subject I’ve seen. Thank you. Now I’m
ready to start on some 67 ‘Vette heads!

Aye Bee says:

I am with ford302redneck on this one. Machine tools cut valve seats and
faces at 45 and 46 degrees to seal. [Consult machinist to see which is
which] The machine tooling creates a near perfect face on the mating
surfaces. Old story, young men are continually encouraged to be proponents
for abrasives abuse which pit the machined surfaces, ultimately benefiting
a winning racing teams agenda. The learning curve on engines is steep. I
wonder if Daniels 944 has had less than 4% leak down since he began
perfessonally’ maintaining it.

Keith Wasielewski says:

Hey ford302redneck. Valve grinding compound is for exactly what was shown
in this video, lapping valve seats. The stuff you’re thinking of to check
the contact points of mating surfaces is called Prussian Blue. Who’s the
noob now?

cometothenightmare says:

i’ll click any ad on any video you made just because this is an awesome
channel. thanks for uploading all this, man!

Jesse Lyons says:

You have a nice pleasant voice

Bjerke Media says:

Great video!

ftrikerfox says:

Seriously for the total time you were farting about trying to grind the
valve in the spring was still under compression. I hope that head wasn’t
off your car the valves are meant to be spotless of all carbon and
polished. to do your head properly would take 6-8 hours depending on how
bad the valves were.
not bad effort needs a lot of work

CaptHarpoon says:

The Keepers are the hardest to reinstall and that wasn’t shown.

el_sabio arellano says:

you tecnic no are the correct. wendo you wath I send a video with the
corect technik

Alex Barry says:

good video 

todd bennett says:

Dude, your video helped me out. I have a 83 Thunderbird that’s been built
into a nice little street rod, I bought it, ran it a few times, I was
racing a rice burner, I had him by a car length and all of a sudden lost
power and it started skipping. I burned a hole in the valve, I was going to
spend the $$ to have the heads re-done, but watching your video, I think I
can save many $$ and do it myself, I’m glad I went to your vid first,
Thanks buddy, I’ll follow up in a few days and let you know how it turns
out,

bullzy2011 says:

why not just use a one handed spring compressor, look very similar to a G
clamp!! and a socket and hammer for the shock & persuasion to free the
collets/keepers!

Daniel Engling says:

Because I don’t have one 🙂

justinwbancroft says:

I learned to do this on VW heads with a electric drill. bit quicker, but
you have to be extra careful not to get aggressive and and take too much
off. if there is not much pitting on the valves& seats, doing this way by
hand works fine. Better to take too little off and do it a bit more than go
to far.

Tomas Erikssen says:

Isnt possible that the valve and the new “seat” can be abit of ? :S not
sure how i can ask that question better, do to my english… xD Hope that
makes sense to u, thanks again for a great video!

Precision High Speed Doors and Equipment says:

good video man! you made it look so easy! now for my 4.3L, it says I am to
use the o-ring that go right under the keeper. do i really need too
especially if I already installed new seals? thanks!

Daniel Engling says:

Worked for me. This does it without special tools.

Aaron W says:

Why not use a brass wire wheel on a bench grinder? That is how I do it at
my shop to clean up valves.

ford302redneck says:

I mean really, you think some gritty paste will do what machine shops spend
hours with very expensive machines? And if your going to clean the valves,
why not spend the extra few minutes and throughly clean em.

Krim Kram says:

why not just go to autozone and buy a 3 dollar valve suction
cup……………

ivan coronado says:

man this video showed me exactly what i needed to rebuild my heads and the
tool that you used to compress the valve is the same one i got form auto
zone but i didn’t know why it wasn’t compressing my double springs all the
way down i thought it was the tool but now thanks to your video i can see
that you just have to to work at it a little harder to get the keeper out
thanks man

Victor Rodriguez says:

U did it great…..

Write a comment