> -What is the US equivalent of "Wellseal"? He recommends that for
> the Figure
> 8 gaskets and soaking the felt "rope". (Also for other tasks,
> but those are
> the two that RTF and/or hylomar seem unsuitable)
Permatex "Aviation form-a-gasket" aka gasket shellac seems to work well for
those two applications. I've no idea how equivalent to Wellseal they are,
but they work. (I've got a tube of Wellseal on order just out of curiosity,
but haven't received it yet. With any luck, the ship is rounding the Cape
about now <g>)
> -He states that the fan extension acts as a harmonic balancer. I've never
> heard that, and had removed mine last year when I installed an
> electric fan.
I don't believe it's the extension itself, but rather the fan and the rubber
bushings it rides on. Not a 'balancer', but a 'dampener'. Ken G. has
written of this for the local club newsletter.
> I was planning on installing the harmonic damper kit from BFE, but Ken G.
> basically said don't bother except for racing. Am I risking anything by
> leaving the extension off?
The risk is a broken crank. I honestly don't know how big a risk it is, but
it appears that if you never exceed 5000 rpm, the risk is minor. I don't
have either on my TR3A, and it has exceeded 5000 rpm on many occasions
without ever breaking a crank. But my next engine will have a dampener.
>
> -In talking about cooling, he mentions an aluminum radiator (apparent
> available in England), and says you should fit one before giving "any
> thought to fitting an aluminum cylinder head".
I've no clue here.
Randall
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