[Healeys] Rough running 100M
bspidell at comcast.net
Wed Aug 2 20:23:38 MDT 2017
Run it in a dark garage (with plenty of ventilation) and look for spark
leakage (dist. cap + wires).
On 8/2/2017 5:50 PM, i erbs wrote:
> did you change the rotor? simple test. I have seen this happen with a
> bad rotor or even the carbon piece/and spring that connects the cap to
> the rotor.
> Ira Erbs
> _______ _______
> (______ \____1959 BN4____/ _______)
> BT7 engine and disk brakes
> A racing car is an animal with a thousand adjustments. Mario Andretti
> Please excuse random auto corrects and misspelled words
> On Wed, Aug 2, 2017 at 4:35 PM, Larry Paterson
> <Larry at patersondesign.ca <mailto:Larry at patersondesign.ca>> wrote:
> Hi folks – here’s one for you to ponder. For the past many years
> I’ve raced my 100M without a problem. Lately however at around
> 4500 RPM under load it balks and stutters running quite rough.
> I’ve checked timing, changed the condenser several times checked
> carbs and all the other usual stuff. When not under load it revs
> freely. The motor has a billet crank, roller rockers, aluminium
> head, 100S pistons, lightened flywheel etc and regularly ran up to
> 6500 – 7000 RPM with no issues. It also has a Mallory distributor
> and is running 24 degrees of advance. Any advice on where to look
> next would be much appreciated.
> Larry Paterson
> 100M, BN7,
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