cheers, dd.
ps, thanks alan
![Very Happy :D](./images/smilies/icon_biggrin.gif)
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All I can say is to quote:dollydog wrote:but why would you use brass plate on aluminium barrels? surely it's common sense to use the same material? heat co-efficient and all that, brass holding heat a lot longer than ali? why brass? 3 times the price and a damned sight harder to work. anybody can make anything out of any material with the right tools. we're talking blokes in a shed with the basics. and PLEASE don't slag people off that are just trying to help somebody out. maybe it's no biggie to you, but to me it's job satisfaction and the 4mm aluminium lifter plates i cut out myself using the above method [not having access to fancy tools] and fitted to my gt350 work perfectlyoh, and even though they were done by hand, they look good as well
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I bought a decent thread file and i think I've recovered the original barrel threads sufficiently to give them a try.alanr wrote:wondering how you got on with the barrell fix?
You seem to have missed some points.joolstacho wrote: All I can say is to quote:
"A little knowledge is a dangerous thing" and "Common sense isn't so common"!
Don't accuse me of slagging people off. All I did is to suggest a better way of doing the job... IN-MY-HUMBLE-OPINION !
I'd guarantee race-shop engineers would agree 100% with me. Having worked on race engines, and getting advice from very distinguished race mechanics, there's no argument.
If you have the choice, brass plate is the superior material to use in this application.
Brass sheet gives a VERY STABLE cylinder base, and is much less likely to be damaged or distorted. And in manufacture it is much more precise in thickness.
The real problem is that thin aluminium is soft and EASILY DISTORTED. - Just what you DON'T need at the critical cylinder base.
Co-efficient of expansion doesn't come into it at all. If your objection is that it's harder to work? -well, tough!
Do it your way.