Cylinder Head Resurfacing Fiat 129 X1 9 & What Not to Do
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- čas přidán 15. 12. 2014
- Watch John @ Costa Mesa R&D Automotive Machine Shop as he explains the problems that he encounters when clients bring in cylinder heads to be resurfaced. Using a buffing wheels on the sealing surface is a big NO-NO! 949-631-6376 Don't gforget to 'Click' and SUBSCRIBE!
- Auta a dopravní prostředky
Love the stills got to print them out and hang on the wall for a little stress relief
Great video as usual. Could you tell what bits you are using in your fly cutter for the course and fine cuts? Are they carbide or HSS? Thanks
OLÁ. 22/12/23. Constatei que o vídeo da plaina de cabeçote foi feito a 8 anos passados. Informo-vos que a 8 anos passados utilizaram uma máquina desregulada e por este motivo não tem como provar qualidade. Falta o "cruzamento" no acabamento final. O uso de relógio comparador fixado na mesma peça que a vídea apenas confirmará que está sendo comparado com o erro da regulagem e não com a planicidade exigida. Sugiro usarem uma "LEGITIMA RÉGUA DE PRECISÃO" manipulada com o uso de sombra / luz utilizando a quina da régua e confirmando com a quina totalmente oposta e por um manipulador competente. (não há a mínima necessidade de usar apalpadores) ABRAÇOS...Roberto Udo Krapf.
Hi there John!
Always nice to have a new video from Costa Mesa R&D in the mailbox.
We have to resurface our heads from time to time and last time we did that, we used a resurfacing horisontal grinding machine. (if you know what I am talking about)
Not a milling machine as you use..
The result was great and the sealing did the job fine when everything was together.
The head belongs to an AMG 3,6 straight six cylinder engine.
It is fed by an Eaton M112 up to 1 bar.
What do you think about the difference between a milling maching and a grinding machine when it comes to resurfacing?
/Anders
Sweden
What ever get the job done, that works for me. Typically we use grinders for iron heads and no alloy. As long as you get the correct surface finish, you should be good to go. John...
awesome dude, ty again.
Hi John
Like the jack setup, curious on what surface you use to establish parallel to the table for both X & Y? Also, can clamp pressure rack/twist the head?
ATB
Chuck
outsidescrewball I don't work about X & Y, just Z. Used a back-plunger indicator to establish Z.
A little extra compression never hurt anybody! haha
Excellent video.
Can you tell me about the large fly cutter. I would like to make one but have not seen one that big in a r-8 collet set up.
Cheers,
Dave
Make your own,use a flywheel.
make sure that 20mm shank is perfect size, i wouldn't risk a looser fit as the r8 wont clamp safely
So, the fly cutter is not cutting on it's leading edge/side?
Couldn't really get my head around that at first. Is there any advantage to have it set up like that?
The leading edge of the cutter is doing the work. I used a carbide cutter for the first few passes and then switch to high speed steel for the final cuts. A lot of people bah humbug HSS, but if its ground correctly you can see that I got a 25 Ra finish. Nuff said... John...
Not that I am a complete and total newbie to machining heads but if you take off material will the tolerances be off as far as compression? Are you making up that difference with a thicker gasket?
Dont be afraid of what the makers say the take off material is whithin specs
With .006" removed, I wouldn't bother with a thicker gasket, and besides there are no thicker gaskets available for this engine. Typically, for every .010" removed you increase the compression ratio by .1. You can certainly have carbon build-up in the combustion chamber that will reduce volume and increase compression as well. I could go into this further, but don't have the time. John...
nice vid tnx
What is that thing? A giant fly cutter?
sir my Mazda need to be Resurface😔😔