On 11/6/2017 8:35 AM, rbowman wrote:
> On 11/5/2017 9:49 PM, RS Wood wrote:
>> I don't hear anyone talking about pushrods, so, all I see
>> here are that
>> chains last a*lot* longer in general than do belts, where
>> if either one
>> broke on an interference engine, expensive things can happen.
>
> Unless it's a gear driven camshaft the pushrod design will
> have a chain. Other than bikes I don't there are many gear
> drives because of the fitting problems. My Harley has gears
> but they are factory matched. Aftermarket cams tend to be
> noisier because of the wider tolerance.

My Corvairs are geared-cam.

--
Andrew Muzi
<www.yellowjersey.org/>
Open every day since 1 April, 1971