Okay forget hydraulic lock and tell me what you think of this. I went to an auto shop so they could work on my carburator when I got it back it revved at a very high rpm without having to press on the gas. I kept taking it back but it still kept revving very high on it's own. On the way back to the shop the fourth or fifth time, I was at a red light and the engine was really revving high, then all of the sudden it stalled out and massive smoked poured out from under the hood. I pushed it to the side of the road and left it there, then came back later that night. The car started but from then on thick smoke poured out of the tailpipe when I checked the oil it was half oil half gasoline. What caused this?
2007-01-25 14:42:18 · 12 answers · asked by deazzling 2 in Cars & Transportation ➔ Maintenance & Repairs
Over revving can cause engine failure, but what was the gas doing in the oil? does it have a mechanical fuel pump? they can rupture sending gas into the oil pan :(
2007-01-25 14:56:52 · answer #1 · answered by Anonymous · 0⤊ 1⤋
I'd assume tht the stall was accompanied by a loud noise. It sounds like you either dropped a valve and knocked a hole in a piston or just flat out broke a ring or piston. The engine is done, history, kaput. The fuel in the crankcase is an indication that a piston failed. It's not a hydro lock problem. That comes when the engine tries to compress a liquid, and generally ends up in bent or broken connecting rods. Seeing as you didn't mention a gaping hole in the side of the engine or having to stage an oil cleamup on the level of the Exxon Valdez, I don't think you threw a rod. Regardless, the engine is going to have to be replaced.
2007-01-25 15:02:12 · answer #2 · answered by Ron Obvious 3 · 2⤊ 0⤋
Revved The Engine
2016-10-22 11:30:34 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Sounds like an air leak between the cylinder head and carbs. First check for any vacuum hoses that may have come off or cracked and hardened with age. If everything there looks ok, pull one spark plug wire off at a time and see if the fast idle stops. With one plug wire off, it will idle slower than it normally would, but when you disconnect the plug wire on the cylinder with the air leak, the fast idle should stop. If nothing changes after pulling the plug wires one by one (and replacing them afterwards so there's always three firing), then there's a problem elsewhere. Try closing the choke a bit and see if the idle smooths out, if it does, there may be crud in one or more of the idle circuits. Excessively lean conditions will cause erratic idling.
2016-05-24 00:33:00 · answer #4 · answered by ? 4 · 0⤊ 0⤋
Your carb has a vacuum leak for the high revving. and is sucking fuel down with it into the engine. The carb guys did not do a good job on it using old gaskets or the wrong gaskets. Needs to go back. Orthe accelerator linkage is binding. Can it screw up the engine? Oh yes. GEt the carb shop to fix their errors.
2007-01-25 16:00:21 · answer #5 · answered by ButwhatdoIno? 6 · 0⤊ 0⤋
I have a Audi A3 TFSI had it for 14 months the other day it just died on me the dealership picked it up , and now have said its because I have over revved it ???? that the engine has gone My last car have been Audi and I never over revved I still have finance on my car how can this be...how can I sort this problem out can any body help me
2016-05-16 02:01:20 · answer #6 · answered by chez 1 · 0⤊ 0⤋
you could be getting gas in the oil because the carb is dumping way to much gas in to the engine and it is bypassing the rings. the high rev could be cause of a vacuum leak somewhere or the people who adjusted it do not know anything. take it some where else!!!! good luck.
2007-01-25 14:58:16 · answer #7 · answered by mike m 2 · 0⤊ 0⤋
i own a repair shop,and its possible the fuel pump diaphragm busted on it,that allows fuel to flow back in to the oil ,either that or it was flooding so badly it done what is called washing the cylinders dry of oil,either way it has to be drained and cleaned out,and the carburetor problem has to be repaired on it and i would be care full when i started it also,you wouldn't want it to rev real high after having gas in the oil ,the fuel pump may have been the problem with it all along,good luck ,i hope this help,s.
2007-01-25 15:25:59 · answer #8 · answered by dodge man 7 · 0⤊ 3⤋
Well it sounded like you had a stuck float,pitty since a couple taps on the carb would have taken all that away.But enjoy the new engine your going to need.
2007-01-25 15:05:15 · answer #9 · answered by JACK OF TRADES 3 · 0⤊ 0⤋
OOOH, thats not good at all. what happened was your oil overheated, the pressure got too high and somewhere you have a blown seal maybe a blown headgasket. take it in.
2007-01-25 14:53:09 · answer #10 · answered by Anonymous · 0⤊ 0⤋