In article , "Dennis O'Connor"
wrote:

I suspect your battery / cables are marginal... I have the Concorde RG
battery and the original piper aluminum cables, in a twin which means
looong
cables... My non heated engines spin just fine regardless of
temperature...

I have copper cables and it was a new battery. Frankly, I'm not
sure how marginal battery and cables would be improved by a preheat.


I do keep the cable connections polished and greased with Dow silicone...
But the real eye opener was the Concorde RG battery... day and night
difference compared to a standard battery...
denny

A lightweight starter is amazing (when warm) - no more "bumping"
the starter on my cherokee 140, but the prop still spins pretty
slow without the preheat.




"Jay Honeck" wrote in message
news:CivYb.339528$xy6.1678994@attbi_s02...
well, I've done the no-preheat thing on a 30 degree day and the prop
didn't spin all that fast (barely started). With a preheat on a
20 degree day the prop spins a lot faster.



--
Bob Noel