rear end locked up and killed engine
02-20-2010, 02:51 PM
#21
Registered User
haha @ b4runner, I was talking about the evo motor, you'll be fine because your motor is totally different. if your timing belt comes off your truck your internals dont continue to function, they just stop. replace the belt and see if it turns over. you'll need to time it obviously too.
02-20-2010, 02:58 PM
#22
Registered User
Compression check wont tell him anything if his timing belt is gone. if valves aren't tuning there will not be any compression, which is most likely why the engine is turning easily. Which someone stated earlier.
02-20-2010, 03:10 PM
#23
Unless...he snapped the crankshaft and all the starter's turning is the flywheel.
At this point we all hope it's just the timing belt don't we?
FYI, compression will still be available on at least a cylinder or 2. ALL the valves won't open at the same time when the belt snaps. Why you'd want to test compression in this is case, however, is another story.
At this point we all hope it's just the timing belt don't we?
FYI, compression will still be available on at least a cylinder or 2. ALL the valves won't open at the same time when the belt snaps. Why you'd want to test compression in this is case, however, is another story.
Last edited by MudHippy; 02-20-2010 at 03:18 PM.
02-20-2010, 03:10 PM
#24
Registered User
Thread Starter
our friend towed it to his shop and is having his mechanic take a look at it. im supposed to call him monday to see what the diagnosis is. the rear end i can of course tackel on my own. if its the timing belt, im debating on whether ill do that on my own.
02-22-2010, 03:34 PM
#25
Registered User
Thread Starter
thank you all for you advice! its really making me feel better about the problem just being the timing chain.
but it never made sense to me how exactly the rear end locking up killed the engine. no one else on the thread said anything about it, but i figured i just didnt kno something very obvious. but drew303 reinforced the mystery into me. he doesnt understand either:
if my rear end locked up, how did it manage to kill the engine? its not the tranny bc the tranny shifts through all gears like normal. and even in neutral, the truck chugs bc the differential.
but how did that kill my engine. drew303 says when doing his breaks, he had the truck revving high and slapped on his breaks, bringing the engine to a sudden stop. thats what happened to my truck as well;m the engine came to a sudden halt. how did that do anything to the engine?
but it never made sense to me how exactly the rear end locking up killed the engine. no one else on the thread said anything about it, but i figured i just didnt kno something very obvious. but drew303 reinforced the mystery into me. he doesnt understand either:
if my rear end locked up, how did it manage to kill the engine? its not the tranny bc the tranny shifts through all gears like normal. and even in neutral, the truck chugs bc the differential.
but how did that kill my engine. drew303 says when doing his breaks, he had the truck revving high and slapped on his breaks, bringing the engine to a sudden stop. thats what happened to my truck as well;m the engine came to a sudden halt. how did that do anything to the engine?
02-22-2010, 11:05 PM
#26
Registered User
The diff is connected thru the drive line which is connected to the tranny which is connected to the clutch which is connected to your flywheel which is connected to your crank which......
haha
haha
02-23-2010, 05:38 AM
#27
Registered User
Thread Starter
Haha, I know that. But would't the belt have stopped with the engine and all? What caused it to snap, if that's actually the case.
02-23-2010, 06:03 AM
#28
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crazy things just happen sometimes man. i'd check the timing belt. that seems like a logical explination of not starting and it turning over like you say it is. one more thing, just a shot in the dark but a suggestion. do you think by some crazy possible way that the ignitor wire or whatever its called came off of your positive battery post? just thought i'd suggest that. happened to me once when i hit a really big pothole in the road because the wire was all corroded. it wouldn't start and was cranking over like super easy, like how you were describing, like its not doin any work
02-23-2010, 06:05 AM
#29
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rear end locks
you don't hit the clutch
the lack of movement transmits down the driveline to the motor
the crank is forced to stop spinning in time with the cams
the cams held in time only by the belt which has now stopped
the inertia of the belt cause it to continue moving thus forcing it to jump time
or
the distribution is messed up too
not too bad
you don't hit the clutch
the lack of movement transmits down the driveline to the motor
the crank is forced to stop spinning in time with the cams
the cams held in time only by the belt which has now stopped
the inertia of the belt cause it to continue moving thus forcing it to jump time
or
the distribution is messed up too
not too bad
02-24-2010, 06:01 AM
#31
Registered User
Thread Starter
Well guys, GREAT news! Of course the rear end is toast, but my engine fired up without having to touch it. Safety features are always a bonus. When the diff locked up, is sent me jolting and skidding everywhere. Well, that made the truck think it was in an accident. And it has a safety switch to cut power to the fuel pump when it's in an accident. So it thought it was in an accident and shut off the fuel pump. Just had to reflip the switch. Truck fired right up.
02-24-2010, 06:06 AM
#32
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That is good news. Good thing you didn't waste your time tearing the engine down without doing normal diagnostic checks... 
So when are you going to have that thing locked and back on the road? We've got to go give these old rigs a look at some snow!
So when are you going to have that thing locked and back on the road? We've got to go give these old rigs a look at some snow!
02-24-2010, 08:03 AM
#37
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Well guys, GREAT news! Of course the rear end is toast, but my engine fired up without having to touch it. Safety features are always a bonus. When the diff locked up, is sent me jolting and skidding everywhere. Well, that made the truck think it was in an accident. And it has a safety switch to cut power to the fuel pump when it's in an accident. So it thought it was in an accident and shut off the fuel pump. Just had to reflip the switch. Truck fired right up.
And was the switch the ignition or key switch?
And was you rear making any noise prior to the lockup?
I want pics when you take it out!
Last edited by tried4x2signN; 02-24-2010 at 08:04 AM.
02-24-2010, 01:56 PM
#39
Let me tell you something. This is definetly going in the "dumbest thing someones told you about cars thread" for sure.
Moron....
Last edited by MudHippy; 02-24-2010 at 02:16 PM.
