Have a buddy (who will go un-named) who has his 1986 vette sitting for several months in a hot florida garage, while hes been busy (most of us have done something similar at one time or another)
anyway he goes to start it and the batterys dead so he jumps it and it starts very reluctantly, but sounds like its got a rod knock, so he shuts it off,and starts freaking out!
he calls me, all excited because the car ran perfectly when he parked it.
(GOOD MOVE, never run an engine that sounds damaged)
I come over and suggest he pull the plugs and check the oil.......oils three qts HIGH and smells like fuel.......short answer, IT appears that heat in the garage where its frequently 100 plus F in temp pressurised the tank and fuel lines just enough that over several weeks time fuel leaking from a defective injector slowly drained into the engine.
there was about a table spoon of raw fuel in one cylinder when we pulled the plugs to check.
anyway, replacing the fuel in the tank, oil,in the engine, the oil filter and spark plugs and running a qt of marvel mystery oil and two cans of injector cleaner thru the full tank of new fuel seems to have cleaned up and cured it. and theres no obvious damage done at this point.
his oil pressure is steady and holds at 25 psi at idle and the car runs great and when I cut the oil filter open there was no bearing material.
viewtopic.php?f=54&t=938
in most cases your unlikely to see that because INJECTORS don,t normally lock open and fuel pumps and fuel tanks don,t normally allow fuel to reach the engine pressurized by heat building pressure in the tank as they normally vent to outside pressure, but he seems to have more (LUCK) than most and gets ODD problems on occasion
anyway he goes to start it and the batterys dead so he jumps it and it starts very reluctantly, but sounds like its got a rod knock, so he shuts it off,and starts freaking out!
he calls me, all excited because the car ran perfectly when he parked it.
(GOOD MOVE, never run an engine that sounds damaged)
I come over and suggest he pull the plugs and check the oil.......oils three qts HIGH and smells like fuel.......short answer, IT appears that heat in the garage where its frequently 100 plus F in temp pressurised the tank and fuel lines just enough that over several weeks time fuel leaking from a defective injector slowly drained into the engine.
there was about a table spoon of raw fuel in one cylinder when we pulled the plugs to check.
anyway, replacing the fuel in the tank, oil,in the engine, the oil filter and spark plugs and running a qt of marvel mystery oil and two cans of injector cleaner thru the full tank of new fuel seems to have cleaned up and cured it. and theres no obvious damage done at this point.
his oil pressure is steady and holds at 25 psi at idle and the car runs great and when I cut the oil filter open there was no bearing material.
viewtopic.php?f=54&t=938
in most cases your unlikely to see that because INJECTORS don,t normally lock open and fuel pumps and fuel tanks don,t normally allow fuel to reach the engine pressurized by heat building pressure in the tank as they normally vent to outside pressure, but he seems to have more (LUCK) than most and gets ODD problems on occasion