SOHC.co.uk Forums > CB750

CB750 Head Gasket copper or not ?

<< < (2/3) > >>

K2-K6:
Probably more realistic to get some laser/water jet cut nowadays if you wanted to get a supply line setup to specific requirements.

http://scegaskets.com/wp_super_faq/given-the-choices-why-would-one-use-a-copper-head-gasket/

Was looking through the above link for some more experience of using them. Interestingly they recommend coating the gasket to contain oil etc through the head joint.

As you say though, you're probably not going to get copper to take up surface imperfections in the same way as composite std types will.

Andych:
It used to be fairly common practice to go Copper and "O Ring" the head on very high compression engines as well as Turbo and Supercharged motors for competition.. not sure it is overly practical for daily running....

ka-ja:
Made my own copper head gasket for my 460 yoshi when I couldn't get the right one, just annealed it and gave it a smear of setting gasket compound before fitting, it performed well enough.

andut:
Copper seems to be an out of favour head gasket material these days. More modern materials and manufacturing techniques have made other options more readily available for a lot of applications.  I have an old pushrod Ford engine in a Westfield that required a head rebuild a few years back, and I was advised by a very well respected engine builder to avoid replacing the copper gasket that had failed with a composite item.  Widely available for tunable car engines, but I'm guessing it would be more of a challenge to find similar for an old sohc honda as demand would be comparatively small.

There was a copper gasket on my 400 that was worked on by Dixon Racing back in the 80s, but it was no thicker than a std  gasket, so a Cruzinimage gasket has gone back on - will see how that goes !

Tomb:
We use copper MTC head gaskets with the 1428cc barrels on GSX based Funny Bike, it has turbo and 2 stage NOS injection, the head gasket is the only thing we don't wreck. I also use one on my XS1100 and re-use it after annealing.
I use instant gasket round the camchain tunnel, external oil way means no worries on that.

I recommend them.

Navigation

[0] Message Index

[#] Next page

[*] Previous page