Otto cycle engines are quite a bit different in this regard than Diesel
cycle, starting "ether" won't harm them as long as you don't try to put a
load on them. When applied to a diesel, the "ether" (actually it's usually
a mixture of light naphtha and mineral oil) ignites before the piston
reaches TDC, which causes the extreme bearing load. For a lower compression
car engine, it waits for the spark and then burns reasonably normally. I
use it frequently on recalcitrant engines.
Someone else mentioned WD40, but I believe there are different formulations
of WD40 around, some are flammable, some are less so. The flammable ones
use propane as a propellant, the others use nitrogen or some such. I
haven't tried it, but it seems to me the oil would not be good for partially
fouled plugs (which are a frequent cause of hard starting on older engines).
Randall
Graham Stretch wrote :
> What Bob suggests is a good principle but if by starting fluid he means
> ether (cold start as commonly used on reluctant diesels) I would not use
> this as it beats diesel engine bearings to death and they are in general
> stronger than petrol engines.
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