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Cylinder Head Void in Chamber
Super1302 - June 7th, 2012 at 05:42 PM

just curious about a small void in the chamber of my new heads, should it be there as the cnc cut did not cause it.
any ideas. (get new heads)
Paul

matberry - June 7th, 2012 at 06:16 PM

Seen it before in a CB 044, I replaced it with another new one that had spark plug issues but the lesser of two evils (helps to buy local). Could weld it up but then the valve seats and barrel seats will need redoing, most do anyway. Yes , brand new.:yes:

Show us a pic

Lucky Phil - June 11th, 2012 at 10:35 PM

Quote:
Originally posted by matberry
Seen it before in a CB 044, I replaced it with another new one that had spark plug issues but the lesser of two evils (helps to buy local). Could weld it up but then the valve seats and barrel seats will need redoing, most do anyway. Yes , brand new.:yes:

Show us a pic


Interesting, Matt.
I am planning to build an engine soon and have a few questions.
So,would you recommend redoing the valve seats and barrel seats on new heads, regardless of supplier?
Andis it ok to ask which local suppliers do you use?
I was planning to get most of the parts from the US, but it would be a pain to deal with a warranty issue like this.

matberry - June 11th, 2012 at 10:52 PM

Hi Phil, yes I recommend a valve job and flycut on new heads. They will always show some irregularity upon machining.

Yes it's ok to ask which supplier I use, but I use several depending on what I'm looking for, but I'd recommend Vintage Vee Dub Supplies, Crankshaft Engineering and Rod Penrose, but I also buy direct CB, Scat and JPM, and yes it does help with warranty if dealing local. When dealing direct, the return freight costs make a warranty claim close to useless.

Lucky Phil - June 12th, 2012 at 08:07 PM

Thanks Matt.
I guess the money you save by going direct you may have to spend buying twice.
Who is doing good head work these days?
I'm not sure if anyone is still doing head work here in Adelaide.

matberry - June 12th, 2012 at 08:32 PM

Quote:
Originally posted by Lucky Phil
.
Who is doing good head work these days?



Good question, I've been using a few lately, my first choice's seem to have stopped trading the last few years. I've always done my own porting and chamber work but need to work in conjunction with a good machine/head shop. Feel free to phone for some recommendations.

68AutoBug - June 13th, 2012 at 03:38 PM

Quote:
Originally posted by Lucky Phil
Quote:
Originally posted by matberry
Seen it before in a CB 044, I replaced it with another new one that had spark plug issues but the lesser of two evils (helps to buy local). Could weld it up but then the valve seats and barrel seats will need redoing, most do anyway. Yes , brand new.:yes:

Show us a pic


Interesting, Matt.
I am planning to build an engine soon and have a few questions.
So,would you recommend redoing the valve seats and barrel seats on new heads, regardless of supplier?
Andis it ok to ask which local suppliers do you use?
I was planning to get most of the parts from the US, but it would be a pain to deal with a warranty issue like this.


With overseas buying, You need to think NO WARRANTY,
same as with wrong parts supplied... CANNOT return
as the costs involved make it too expensive to return and then depends on whether the USA supplier will pay for the return part to be delivered to Australia...

LEE