Making and replacement of valve seat. The cylinder head from Honda 450cc - Foreman 450 - TRX 450 S

Hi.
This video shows - step by step - making and replacement of valve seat.
Material for the new valve seat - 42CrMo4+QT
. . . for more interesting videos click ,, HERE "
/ @paulxchannel

[@mirosawmilewski5949]

Świetny pokaz naprawy głowicy. Szczegółowo, nie ukrywając szczegółów. Ogromnie przydatny. Przekazano wiedzę, której trudno znaleźć w książkach. Ten film to rodzynek !!! Nie spotkałem takich nigdy. Podziwiam, pozdrawiam i dziękuję.

[@rideyourbikent]

Great video no worthless chit chat just a good job being done in an expert manner . Great tools and equipment .

[@RANGOArts]

you have a tool for everything. that's heaven for me.

[@jacklarson6281]

man.., I love this kind of stuff. that was awesome.., instead of buying a new head, you totally fixed the old one like a Road Warrior.

[@anhuynh3098]

A great demonstration clip with profound wisdom that really pays off. Thanks Paul !

[@ashdonhobsim2040]

Wish we had someone as talented as you and your machines around here. I need valves cut right now lol

[@spiKey0svetlana]

All those amazing, high end, expensive, precision tools... 😍

[@laosgpsmapmidnitemapper9411]

Great demo , cool Tools and a lotta Work ! thanks I felt like I just did a day in the shop:)

[@avsmotosolution4928]

The best!!!! I from Brazil Love your work

[@yarrdayarrdayarrda]

The precision tool for measuring valve seat counter bore diameters is excellent. Never realized such a tool existed and figured you'd just use verniers.

[@victorgarabato2341]

Greetings from Argentina. U are amazing.

[@pkgaming8384]

I have never seen such a good work before

[@tonyschiffiler4816]

Attention to detail , same principal as a custom Chevy cylinder head . Nice job .

[@mohamedismail4525]

Very precise work, skilled person with precision tools

[@wamaaris3347]

Really admire your professionalism in the equipment and tools you are doing the job. Wish I had those equipment,

[@aragrox]

You are the type of people I don't mind paying to get work done for me

[@victorgonza4528]

Outstanding work man well done

[@bendolpiomoto1034]

Tutorial yg sempurna hasil yg maksimal .ful support from indonesia 👍👍

[@markjohnson6130]

Nice video, thank you. Your tools make me envious. I have a flow bench and you were in a great place to improve the flow simply by boring the valve insert seat to .9 diamanté's of the valve and then do a back cut on the valve seat. That would give you a bigger flow gain than porting the head. cheers and nice tools.

[@muushkin]

Do you mean a thinner valve seat? (Smaller inside diameter?) and then adding chamfer on backside of seat towards valve guide?

[@markjohnson6130]

@@muushkin Most people when porting a 4 stroke head focus on the port and narrowing the boss around the guide. but the biggest flow improvement comes from the valve seat area. Measure the valve OD diameter then bore in past the insert about 5mm exactly 0.9 of that valve diameter OD and blend into the port with grinder. Then cut the 45 degree seats and use the 30 deg top cut to position the head valve seat where you want on the valve. Then a very important step is to back cut or grind the inlet valve to 30 deg from the 45 deg seat edge towards the stem so that the valve ends up with 3 angles and the inlet seat seat ends up with 3 angles. Clear as mud I bet😁. Flows like a stream train 👍

[@mikerieck306]

@@markjohnson6130 I go .9 on the intake seat and .85 on the exhaust.

[@markjohnson6130]

@@mikerieck306 Small world Mike lol. I linked into your dyno Vid, impressive stuff, it sounds really quick in the higher RPM, kept the dyno operator reflexes on the ball.

[@dattatrayariswadkar5371]

Excellent demo, fully explained.Procedure is cute .Keep on.

[@c__TattinhNhi]

great technique, and great tools công😄👍

[@tslr36]

Profissional de mão cheia. Parabéns muito bom seu conteúdo. 👏👏👏👏

[@karthikp5180]

really superb.welldone.greating from india.

[@EuroKiller1956]

Profesionální práce, nádhera.

[@ramiretz]

WOW..... Pure Art again... i love your videos !!!!!!!!!!

[@charliepapa5835]

Great work as usual! 👍

[@TiagoEspinha.]

beautiful work hug from portugal

[@mesquitaautoeletrica1368]

Fantastic vídeo! A big hug from Brasil.

[@alessiopaganelli]

Perfetto come sempre, bravo Paul x

[@antoniomontana2232]

Инструмент и исполнение на высшем уровне ! Похожее имею. Одинаковый у нас с Вами только маркер !

[@Shoorit]

Beautiful work.

[@cristianomallmann3842]

Amazing stuff, and what a clean job. Best whishes.

[@ZygmuntKiliszewski]

Very precise repair with the use of perfect tools. Another congratulations 👌.

[@ZygmuntKiliszewski]

Thank you 😀.

[@bernibeckmann9753]

very relaxing to watch, informative too

[@slickricktheruler]

I could watch this chit all day! Give me more please.

[@PaulXchannel]

kzbin.info/www/bejne/eZK5daV8jr2kgdU

[@morenofusaro2630]

Complimenti per l'attrezzeria a tua disposizione 👍

[@iurii-wind]

Как приятно смотреть когда работает мастер! Золотые руки! Best!

[@mendingmotos]

This will be useful for my next build!

[@Cys62]

Really a nice piece of work....

[@saudagarperantau8331]

Wow, so much tools and time to repair one damaged valve seat.

[@bolekcomamilionrolek]

Good job ,cool diy mashine :)

[@frfrpr]

That was some outstanding filming. Thanks

[@nunesmotos351]

Saber execultar um trabalho e ter as ferramentas é outro nível nota dez Nunes Motos

[@Sergio-ih6lk]

Excellent job and great equipment just saying

[@JoyJoy-sq2bt]

great tools..amazing

[@eatingplaydoh]

Beautiful work

[@michaelslee4336]

Finally someone not using center drill in the lathe, because they are not putting in a center.

[@sujaradhakrishnan5878]

Showed a great work with the hardest things

[@davidcort2857]

Nice video, a pleasure to watch.

[@team5xray596]

Como siempre da gusto verte trabajar, buen video.

[@tslr36]

O cara é muito profissional.

[@user-ol1ld1zb4s]

Что скажешь, приятно смотреть,и есть к чему стремиться и учиться.

[@sddiymakeitworthit7512]

Nice presentation thanks 🙏 👍

[@mayurbagiya8653]

Awesome work 👏👏👏👏

[@Liax_ndranta]

I keep listening to how you work on a machine. Well done.👍🏼

[@cordelldarkling3190]

These are tools of my dreams!! 🤤

[@rudigordillo3226]

exelente video amigo felicidades chulada

[@torentmonkey]

Very ASMR and funny edit. You might want to tag that in the vid to get more views. 👌

[@vornvun618]

How much this item cost brother?

[@leighclifford7808]

Your video was epic 👍

[@vrcvlogger]

good job brother 👍

[@K3n520]

nice tool. great dude.

[@eduardelgadilloypesado1302]

un buen trabajo muy profesional saludos

[@gacherumburu9958]

Great job! 😍💞 Subbed

[@horexwerkstatt7010]

Richtig geil 👍👍👍

[@robinrochan9301]

Waww amazing very very précision work very nice thanks 😊

[@steveguest8028]

Great video 👍

[@masksheurty6767]

Very very veryyyyy good job 💪👌✌

[@galinashirai9695]

Наверное дешевле головку купить....чем за такую работу мастеру платить....

[@user-wh6bw1py3k]

I have done hundreds n hundreds of these trx heads guides also shift get loose A easier way of removing seat is to shrink it with weld basically falls out i use to use kerzan valve inserts kz3819 they are extra thinker than the average seat insert the valve height out the back is 37-37.5mm from spring bass to valve tip i also make oversized guides

[@PaulXchannel]

👍

[@davidsyahputra1410]

Nice video paul👍. Just suggestion for next video how to change big valve for cylinder head. Thx

[@mateo5032]

Good job!!👍🙂

[@user-tc2ud2uq8r]

Хорошо бы перед таким серьезным ремонтом заменить направляющую втулку клапана, что бы базирование пилоты было более точным, и полностью восстановить ресурс сопряженных пар трения.

[@strattuner]

excellent work ethic to detail,marvelous,done right is everything

[@SRTmotorsport]

Good and clean job.Try to pour some alcohol when you cutting the seat pocket at the head.you will have better wall surfaces.

[@Budivedder]

Great work

[@marcolima5141]

Show,só ferramentas top

[@praveen19007]

Genuine work very nice 👍

[@robertoudokrapf453]

OLÁ. 26/12/23. Completando... a ferramenta utilizada é ÓTIMA mas faltou o acabamento final que indica a área de vedação que se tiver invertida poderá em muitos motores provocar a "flutuação de válvulas" que as vezes é confundida por "corte devido a rotação excessiva. ABRAÇOS...Roberto Udo Krapf

[@sammorgan31]

I use PC air duster to freeze parts. Costs less than half of those "freeze sprays" and does the same thing. Just hold the can upside down so the liquid comes out.

[@luigiesposito4543]

Bel lavoro ,, good work

[@makrugermd1249]

Отличный ремонт!

[@dwianissa578]

I just can say.. wow... 😍

[@APPS333]

Good replacement and precision tools and carefull measurement but i see some sharp edges above the seats carbon deposit might build up there

[@DgtalBreakz]

Awesome work! So relaxing to watch...

[@stephenr1999]

very nice. precision is kinda my Jamz

[@screwsnutsandbolts]

Great videos 👍

[@gussrestu]

precision 👌joss

[@negrogallero]

Muy chingon trabajo

[@horsts8340]

You are awesome!

[@zardportugal]

Beautiful.

[@poritoshmodak6356]

Sir, you are Best

[@MsKonstantin65]

Отличная работа!!!

[@galinashirai9695]

Да не то слово...

[@jean-paulsobura5847]

Super vidéo avec quel matière les sièges de soupapes sont refaits ?

[@dexterpagurayan4881]

What a patience consuming process

[@30Higgins]

Could you please indicate at wich temperature you need to heat the head and what is the (very impressive) refrigerant spray ?

[@mudachuka12345]

I enjoyed the video and the presentation it was excellent. Not sure how accurate the machine can hold a concentric tolerance. The most important critical thing is valve seat to valve guide concentricity. What tolerance are you able to get the seat and guide to? Otherwise known as valve seat run out. Do you measure it after cutting the valve seat? There is a measuring tool that fits into the valve guide and places a finger clock DTI on valve seat and you rotate it to measure if the valve guide is concentric to the valve seat.

[@webtoedman]

Valve seat concentricity can never be better than the concentricity between the valve guide and the cutter arbour. If the guide hole is worn oval, then it is better to replace the guide, and start afresh. Expensive head machines use compressed air to create a self centering effect between the tool arbour and the valve guide. When cutting starts, the tool and the work "define their own centres", and the concentricity is produced automatically. (Allowing for clearances) It isn't overwhelmingly critical, unless the parts are grossly miss-aligned, because the two working faces are conical, and tend to self align, at the expense of a little extra friction and possible valve stem and guide wear. If the oil seal on the guide is good, then you wouldn't even notice, especially on a generator.

[@KoenigsTiger957]

Wow, amazing!!

[@johngoode6787]

Hi Paul excellent work as usual but could you show us in a future video how the boring head machines the counterbore at the bottom of the hole your boring. Cheers

[@erichildreth7562]

You have some mad skills in the machine shop!!! Very nice work and can't wait to see some more! :)

[@Megakoolguy357]

I wasn't confused until he mentioned an overlap of 0.1 mm. I watched that far in the video and finally noticed he was using metric.

[@tutulrahman9406]

Very very nice, thanks,