I am trying to get a 1986 Chevy 350 running. The engine has been sitting
for two years and it will not spin with the starter, what is the process to
spinning? I pulled out the plugs and they were clean (no rust), the oil in
the engine is clean and does not smell stale. My uncle says to just
put a breaker bar on the balancer and rock it back in forth until it spins.
Is this ok, it seams to me that would be very hard on the bearings? I have
already put oil (30wt) in the cylinders and am letting it soak. Any advice
would be appreciated.
Thanks for the replies. The sad part is it is in a boat that has been
sitting on a trailer for the past years. The boat has been used so little
that the engine has less then 50 hrs on it so it isn't even broken in yet.
I have soaked it in Marvel mystery oil then went over to normal engine oil
before I initially tried to spin it. So I will go back and shoot a little
more in there. Thanks again
If it does not spin, it is likely pistons siezed in bores and not
bearings. A great trick for freeing rusted bores is Pepsi or Coke (it
has Phospheric Acid which eats rust) Pour it in and let it sit over
night, Deit work even better because there is no sticky sugar residue
left in engine if left to sit too long. It real does work but may not
in your case because you poured oil in cylinders which would block the
acid in the pop.
Posted using the http://www.autoforumz.com interface, at author's request
Articles individually checked for conformance to usenet standards
As an update to this thread... I bought an adapter to spin the crank with a
wrench. Gave the wrench a good tug and it broke free. Turned it by hand
for a half hour to get a little oil through the bearings and it started to
spin free w/ little drag. Found water in the oil (not happy) changed it
out, changed starter that was rusted solid, converted points ignition to
solid state Hall Effect and new carb (the engine was in a boat...). Fast
forward to July... Now the engine runs like a dream, in fact better then
when it was new. I ran it 5 hrs with "too thin" oil to loosen everything up
and have gone back to the required 30wt oil; was amazed the thin oil (in
this case 10w30) was dirty after 5 hrs but that was its purpose, to clean
out all of the crud... So I appreciate everybody's help it paid off and was
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.