Crankshaft won’t turn
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If you try and do it with the timing belt off, the camshaft won't rotate and the crankshaft will. If any valves are open due to camshaft position, they're gonna kiss smack the top of the piston, and that'll leave you with a bad day
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
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Re: Crankshaft won’t turn
If you try and do it with the timing belt off, the camshaft won't rotate and the crankshaft will. If any valves are open due to camshaft position, they're gonna kiss smack the top of the piston, and that'll leave you with a bad day
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
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worse day* lol
If you bend valves, the only way to fix it is ripping the engine apart and replacing the valves.. Turns into a head gasket replacement and then some
I had it happen to me. Did a DIY head gasket replacement, had it all together, and didn't torque the TDC sensor on well enough. It vibrated itself loose and decided to kamikaze itself and take out my timing belt with it. Bent all 16 valves and had to replace valves and do another head gasket replacement.
If you bend valves, the only way to fix it is ripping the engine apart and replacing the valves.. Turns into a head gasket replacement and then some
I had it happen to me. Did a DIY head gasket replacement, had it all together, and didn't torque the TDC sensor on well enough. It vibrated itself loose and decided to kamikaze itself and take out my timing belt with it. Bent all 16 valves and had to replace valves and do another head gasket replacement.
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worse day* lol
If you bend valves, the only way to fix it is ripping the engine apart and replacing the valves.. Turns into a head gasket replacement and then some
I had it happen to me. Did a DIY head gasket replacement, had it all together, and didn't torque the TDC sensor on well enough. It vibrated itself loose and decided to kamikaze itself and take out my timing belt with it. Bent all 16 valves and had to replace valves and do another head gasket replacement.
If you bend valves, the only way to fix it is ripping the engine apart and replacing the valves.. Turns into a head gasket replacement and then some
I had it happen to me. Did a DIY head gasket replacement, had it all together, and didn't torque the TDC sensor on well enough. It vibrated itself loose and decided to kamikaze itself and take out my timing belt with it. Bent all 16 valves and had to replace valves and do another head gasket replacement.
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you have the belt on, so you should be safe about the valves.
remove all spark plugs. the engine compression is resisting turning. only one plug removed means the other three are still resisting.
Be glad they are resisting, means you have compression.
remove all spark plugs. the engine compression is resisting turning. only one plug removed means the other three are still resisting.
Be glad they are resisting, means you have compression.
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I tried to turn the crank with the all the sparks removed and ran into the same problem. It’s that still a good sign?
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huh, no...
what direction are you turning? Belt gets loose in one of the directions...
belt can only keep tension in one direction by design... It might be the valves...
what direction are you turning? Belt gets loose in one of the directions...
belt can only keep tension in one direction by design... It might be the valves...
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later I learned it was turned the wrong way otherwise I would have done the job correct.
Last edited by Frostysinco; Aug 3, 2021 at 05:11 PM.
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at least you won't really do any damage cranking by hand the wrong way, so long as timing is set properly. Counter-clockwise, my friend. Counter-clockwise (toward the front of the engine, if that wasn't clear)
The movement isn't gonna be smooth and steady, just so you know. It's gonna feel kinda hard for around 90°, then just go the rest of the 180° or so, seemingly by itself, then repeat.
The movement isn't gonna be smooth and steady, just so you know. It's gonna feel kinda hard for around 90°, then just go the rest of the 180° or so, seemingly by itself, then repeat.
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I hope you're not trying to turn this over by hand either. Overcoming the force of the valve springs when the camshaft is turning is basically impossible without more leverage.
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wait so I just watched some more about what’s inside the head and are we saying that a valve spring is the problem ? If so I think I could fix that see how easy it was to get to .
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at least you won't really do any damage cranking by hand the wrong way, so long as timing is set properly. Counter-clockwise, my friend. Counter-clockwise (toward the front of the engine, if that wasn't clear)
The movement isn't gonna be smooth and steady, just so you know. It's gonna feel kinda hard for around 90°, then just go the rest of the 180° or so, seemingly by itself, then repeat.
The movement isn't gonna be smooth and steady, just so you know. It's gonna feel kinda hard for around 90°, then just go the rest of the 180° or so, seemingly by itself, then repeat.
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If you try and do it with the timing belt off, the camshaft won't rotate and the crankshaft will. If any valves are open due to camshaft position, they're gonna kiss smack the top of the piston, and that'll leave you with a bad day
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
edit: rather, the tops of the piston(s) are gonna smack the open valve(s)*
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Check engine timing. If it's still lined up then you didn't bend any valves.
https://www.civicforums.com/forums/1...ne-timing.html
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No....I'm saying even on a good engine you have to use a breaker bar or something to turn the engine over.
Check engine timing. If it's still lined up then you didn't bend any valves.
https://www.civicforums.com/forums/1...ne-timing.html
Check engine timing. If it's still lined up then you didn't bend any valves.
https://www.civicforums.com/forums/1...ne-timing.html
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No....I'm saying even on a good engine you have to use a breaker bar or something to turn the engine over.
Check engine timing. If it's still lined up then you didn't bend any valves.
https://www.civicforums.com/forums/1...ne-timing.html
Check engine timing. If it's still lined up then you didn't bend any valves.
https://www.civicforums.com/forums/1...ne-timing.html
edited*
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Turning it over clockwise doesn't guarantee bent valves. Turning the crank isn't easy but with the crankshaft pulley holder tool and a breaker bar it shouldn't take much effort. It would be difficult to turn every 90 degrees but easier in-between each (when the camshaft is opening valves it gets difficult to turn). From here I can't tell you if it feels normal.
Have you had the timing belt off? I'm still confused what you're doing here.
You can tell if valves are bent by removing the timing belt, removing the camshaft and rocker arms, then inspecting the top of all the valves. With no camshaft they should all be sitting at the same height. If some were bent you would be able to tell.
Have you had the timing belt off? I'm still confused what you're doing here.
You can tell if valves are bent by removing the timing belt, removing the camshaft and rocker arms, then inspecting the top of all the valves. With no camshaft they should all be sitting at the same height. If some were bent you would be able to tell.
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Turning it over clockwise doesn't guarantee bent valves. Turning the crank isn't easy but with the crankshaft pulley holder tool and a breaker bar it shouldn't take much effort. It would be difficult to turn every 90 degrees but easier in-between each (when the camshaft is opening valves it gets difficult to turn). From here I can't tell you if it feels normal.
Have you had the timing belt off? I'm still confused what you're doing here.
You can tell if valves are bent by removing the timing belt, removing the camshaft and rocker arms, then inspecting the top of all the valves. With no camshaft they should all be sitting at the same height. If some were bent you would be able to tell.
Have you had the timing belt off? I'm still confused what you're doing here.
You can tell if valves are bent by removing the timing belt, removing the camshaft and rocker arms, then inspecting the top of all the valves. With no camshaft they should all be sitting at the same height. If some were bent you would be able to tell.
