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Making of exhaust valve guide - Yamaha YZ-F 250 . . . part 1.
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- čas přidán 2. 10. 2020
- Production and pressing of the valve guide into the cylinder head.
Material of the new valve guide - AMPCO 18
. . . for more interesting videos click ,, HERE "
/ @paulxchannel
I like the adjustable press fixture. Excellent idea. Thanks for posting.
me to may have to make one of them
I'm just glad this popped up so I could see the tilting table for your press......I'm off to make my own!
Your workshop is like a dream for every real man )
so beautyfull to have all those tools and machines and make stuff yourself... great job !
Head should be heated to 300 degrees F to reduce galling and make extraction /installation easier and not break guides but no hotter cuz seats may come loose/fall out. Lube new guides on assembly. More to it than that tho.
Passion, skills, investment and intelligence combined! You gotta love what you do!
Thank you very much
Beatiful work, and video edition too. Thanks Paul!
Now that's a job well done 🙌 That new guide is certainly "Stronger" !!!
I started this video thinking "No way!!" And I finished this video thinking "Well that was easy... Why didn't I think of that??"
Thanks
That,s real craftmanship , like in more video’s . Gr from the netherlands
Thanks
that engine is like 1/4 of a 20v 4age xD
Really great work !! I own a machine shop similar to yours doing the same sort of work, the next thing you need to build or buy is a blast cabinet. working with a clean head is a must and will make a huge difference to your end product
Thanks
Blasting with soda.....
Otherwise cleaning can be terrible to do to get the blasting media out of oil bores etc
Great machining the head looks knackered though
Asi hubiera alguien como.tu aca con todo ese conocimiento y herramientas seria.genial.
This is beast!! I will definitely show this to my boss. He owns a machine shop down here in Montgomery County Maryland. I think he's done this before or at least the other co-worker of mine have done this. This is great for me because I've been wanting to make my own valve guide for my subaru but didn't want to buy brass stopper valve guides due to they wear out faster than steel.
Absolutely beautiful and inspiring work as always!
This is art.
Pleasure is awaiting me in Poland , restoration of vintage motorcycle FN 350 SV from 1927 , so Yours recordings are good inspiration Pleasure to watch REGARDS from Canada Zbigniew najlepszego zycze
👍👍👍
I prefer to drill and ream first. Then machine guide outer diameter between centers. That assures run out between bore and outside diameter to a minimum
It means , parts are not available in market 😕🙄🙄,
GOOD JOB 👍
One of our specialties at flanigan's machine shop was making valve guides remachining guide holes put in new valve seats with the added other valve work, shave old brass boat prop shafts to make new valve guides win win situation aluminum welding of cylinder heads PS always heat up aluminum cylinder heads before removing guides critical step
I give you credit for ambition and I've made my own guides for various projects but the Yamaha guides are cheap to buy. Warm the head with a plumber's torch and you can drive them in easily with an aluminum drift. Only. 001 interference
Thanks.
I know. I usually buy them.
I wanted to show another way.
Excellent as always. Good job Paul!
Thanks
I make valve guides in Zimbabwe out of cast iron and bronze but finish the od between centers
Your work is exellent, thanks Paul...
Thanks for watching.
This incredibly detailed work and while I would never take away from it, I sincerely hope this was educational more so than anything. There is no way anyone would pay for this at that scale of detail instead of buy a new head. Unless you work for free. I hope not, considering your skill set.
Did this type of work for year cheaper than a new head.😊
Um trabalho que tem todas as ferramentas só pode ficar muito bom parabéns
You are at another level my friend
Thanks for watching.
Matur suwun njeh mas londo
It's the Johnny q90 genius of the moto world, or better. 👍👍👍👍
Good work.
Several errors, the head should be warmed up to 200 degrees to expand the hole, dont use bronze when the rest is cast iron, you can't get an acurate OD from a cracked guide, dont replace the depth setter ring they come off, warm the head up when fitting the guide to prevent galling, once fitted ream the guide to the correct clearance, you will need to recut the seat so it is concentric with the guide, then lap it in, now skim the head.
craftsmanship
How many clearence valve guide ,hole valve guide cylinder head
Buen video, vale la pena soportar los comerciales
Owww genial 👍 excelente trabajo
Excelente video really!! Should you use the reamer once the valve guide is installed in the head?
Thanks.
In this case it was not necessary.
Jorge Mercatali that is the preferred method, yes
Awesome video thanks for the content
Thanks for watching
5 valve🔥🔥🔥
Good job man seems really nice!
Thanks
Здравствуйте. Как получилось у вас добиться плавающего эффекта шпинделя? У меня манжета жмет сверху а когда переключаю воздух снизу такого эффекта нет. Поделитесь плииииз.
Better to press out hot and install plus hone to size is recommended to take the barreling out.
Amazing.
Thanks.
Great job mate👍
Above and beyond
Great video, thanks for sharing. One question, at 5.05 when the reamer comes out you can see a little spring back. Is the alignment of the tailstock ok?
Thanks.
This may be the inaccuracy of the drill head.
Joa gandos boskuuu
#abeng_garage
👏👍👌
Good idea tilting adjustable table. But one confusion that same O/D of OE guide and new made replacement guide? ??
Thanks for watching
If I sent you an oem part would you be able to mill some? They don’t make them anymore but I have found one.
Great work!!👍👌
This is just amazing
Thanks
You great moovy maker.
Any reason why you didn't make a whole set of valve guides since everything was already disassembled?
Did you plan on repairing the inside of the combustion chamber?? Looks rough
See you this video.
czcams.com/video/dF2j3rKT8wo/video.html
For less intensive applications would 12l14 be a good candidate material? Say a street / commuter 125, 150cc?
Perfect
👌 Perfecto ...
Do you measure the inner diameter of the Valve guide?
I really can't figure out what sort of problems the guys who disliked this video could have!
Should always recut the valve seat after new guide installation. They never go back in the exact same place.
I would have heated the head to make for easier guide removal and used liquid nitrogen for guide installation.
Also I would have reamed the guides after installation. With force of the press it can cause a pinch point in the centre of the guide. The jobs ok. But not really amazing.
Thanks.
Please watch next video.
Sana all
Filing good❤️
Amazing 😍👌🏽👌🏽
You amazing bro 👌
Thanks
🔥👍
why don't you try Moldstar that's what my shop uses for making valve guides, but its probably close to what your using
Better than OEM
Beautiful machine work. Are replacement valve guides unobtainable for this model?
Thanks.
It is possible to buy.
Reaxing vedio
Thanks
Good job 👌
Great video! I build mx engines from home and just purchased a tormach 1100m vertical cnc mill. What cutters are you using to do the radial cuts on the valve seats? Thanks!
Thanks.
From a Chinese company - Chinesemoulds.
great job with the valve guide, head / combustion chamber surface bad. Will you be doing anything with that ?
Thanks.
In the next part.
Excelente trabajo saludos desde Argentina
Sir, I would glad to know that if your brass one is more durable than the original part (look like forged material). Thanks!
It's not brass it's Ampco.
@@PaulXchannel but does it last for long? And thanks sir, I have just found a new information.
Ok
Dope! What type of oil do you use when drilling through the new valve?
Standard cutting oil from Fuchs.
Warum Aluminiumbronze statt Kupfer Beryllium?
👏
What bronze are you used it?? Is that almunium bronze or what??
everything is in the video
AMPCO 18
Hi bro can I fix this head in cg125
so what is the configuration of the 5 valves?
2 intake 3 exhaust?
or 3 intake 2 exhaust???
3 intake 2 exhaust
@@PaulXchannel thanks
👍🏻👍🏻👍🏻
😜👍 Great !!!
How do you spot the broken valve guide? It was making a nasty sound? Or malfuntion of the engine in general?
When I do a preventive inspection of a engine.
@@PaulXchannel Oh okay, thanks. I love your work. I wish the people that does that type of work in here were like you. Everything you do looks professional and very well done. Thanks for sharing
@@yeixonperez7908 Thanks for watching.
I want to learn this
awesome work but you know there are replacement guides available from Yamaha for @40 Euro..
Thanks.
Of course I know.
I changed them in an older video.
This is another option ;)
@@PaulXchannel the American Kibblewhite company has a whole set of 5 for 70 S=US Dollars just seemed like a a lot of work to make the one. love your videos very well done and informative.
@@rossmcwatters2716 Thanks for watching.
I am starting to miss using a lathe now
What grade of bronze are you using?
It is in description
Отлично!!!
2 quick questions
1 Was this done because the OEM guide was unavailable?
2 What happened inside that combustion chamber? One side looks heavily pitted.
apparently the valve tore off
would ali bronze work for exhaust seats.
This type yes
Where do you get that tilting/angle table for the press? I need something like that.
Made in workshop
@@PaulXchannel man thats awesome, i bet you could sell a bunch of those😉
Great work but isnt the metal a bit too soft
Thanks.
From the manufacturer:
AMPCO® 18 is ideally suited where high strength and hardness combined with wear and fatigue resistance are required. Some of the more common applications of this alloy are bushings, bearings, gears, worm wheels, valve seats and guides, hydraulic valve parts, pump rods, guide pin bushings, gibs and slides, etc.
Most using colsibro copper alloy made valve quides, that is good stuff.
Wonder if the 250 and the 450 same size head?
different size
Original guide was cast iron no?
Yes
Is this music from AM2R?
Google music library
What function 5 valve? I know 4 valve & 2 valve only...Me slow english
More air
Лаикккк!!!!
👌
Merci Paul 👍👍👍🙂
damaged guide made of fine-grained cast iron probably
Согнуло клапан?
hello .. what name and type lathe machine use sir..
Optimum
type series sir🙏
Optimum D 320 x 920
thanks sir🙏🙏👍🏼