- This topic has 14 replies, 7 voices, and was last updated 10 years, 10 months ago by
.
-
Topic
-
I have another timing question. I have done a timing belt once with help and this is my first time doing a belt by myself. 2005 hyundai sonata v6-2.7L. It’s a passenger facing engine. My 10 gallon air compressor I just bought will not take off the crank bolt with half inch impact. Seems the impact had more power when I used it at auto school. Everything is lined up at top dead center. One of the sprockets is about a quarter of a tooth off and I assume that is fine? I have been researching the last 2 hours and am going to do the bump start trick with a 24 inch breaker bar on the crank bolt and the handle under the lower control arm and disable the ignition system and bump the ignition key. Hear is my question. Let’s say this trick works and loosens the crank bolt, this would now throw my timing off. That would puzzle me. My only guess is I Would then put the crank bolt back in hand tight and use a ratchet to turn the engine clockwise until the timing is lined back up and then remove the bolt since it won’t be so tight so I can get the belt off? Or… Going back to the bump trick what exactly would be my next steps in regards of removing the timing belt and installing my new one and making sure everything is in time since the bump trick would mess the timing up. I know how to remove everything I just don’t fully understand certain aspects of timing gears. Any help will be great because until I figure out what to do my sisters only car is stuck with me. All You guyes rock this site has helped me a lot. Shout out to Eric the man!
-
Replies
-
If I understand correctly, you’re worried about the cranking trick for the crank bolt throwing the timing off? Unless you’ve removed the timing belt already, or it’s broken, it will move in time the same as before with the trick. No harm, no foul.
Ok so immediately after the crank trick I can just stick a ratchet back on the loose bolt and crank it clockwise to line it back up? So it now Being lined back up in time I can pretty much re-remove the crank bolt easily since it’s no longer torqued down. Is this what your sayin?
On those model what hold the TIMING CRANK SPROCKET is the keyway. so if you crack it with the starter you will only loosen the bolt up to 1/4 turn which wont hurt anything. I would recommend a helper to crank the key for you as you keep a visual on the breaker bar
Mazda and ford have bad design on there 2.0l as you need a tool to set the cam and the crankshaft togheter (not the sprocket) then you bolt the sprocket which have no keyway together (only holding with pressure) so you need new bolt and locktite to be confident of nothing loosen up causing interference
Volkswagen is the same as you have the main bolt and then the pulley bolt (4) mount on that sprocket. So if you remove the main bolt you are kinda screwed and that will cost you more time and headache
Hope that help
2005 hyundai sonata v6-2.7L. I began to install my new timing belt. I started at the crankshaft then up around the right cam sprocket. I put a c clamp on that right cam sprocket after the belt was on so it wouldnt move. Then I took the belt down under the water pump pulley and I couldn’t get it onto the left cam sprocket. I tried to pull the left cam sprocket very slightly clockwise by hand because The belt was very close to getting on I just needed to barely turn it maybe a quarter of a tooth and I noticed if I did that the timing marks on that sprocket would even line up better.When I tried to turn the left cam it jumped and I don’t know how to approach this situation to get my cam sprocket back in time without messing anything up. I will very much appreciate any advice.
I also forgot to mention.. When I attempted to pull the cam sprocket by hand clockwise I turned it a couple teeth too far so I put a ratchet on the cam sprocket center bolt to turn it back counterclockwise and that’s when it jumped about 8 teeth in that direction. Can I just use a ratchet and turn it clockwise until it’s lined up again? Or will that mess things up?
2005 hyundai sonata v6-2.7L. I began to instal the new timing belt. Started at the crank sprocket then around the right cam sprocket. I was having trouble getting it onto the left cam sprocket. The left cam sprocket turned a couple teeth clockwise from trying to fit the belt on so I stuck a ratchet on the left cam sprocket to turn it back and it jumped in that direction about 8 teeth. So my question is can I just put a ratchet on the left sprocket and turn it back 8 teeth clockwise until it’s in time again?
Iv been looking at all data and researching random car forums on what to do and I got the impression that I can just rotate the left cam sprocket individually back into time. On the other hand I also read that if the sprocket jumps more than 3 teeth then it wouldn’t be so simple that if I tried to crank the cam sprocket back that much it could cause interference because its at top dead center so I would have to approach this fix in a different way like turning back the crank sprocket and this and that. Somebody please help and save my day, this is my first timing belt job without any help
I’m trying to keep all your posts together seeing its all
for the same thing. If you don’t mind please lets keep one
thread going and not start multiples.It gets hard to track
what was said and where we are on the problem. Thanks.Use either a wrench (non ratchet style) or a 3/8 breaker bar.
The only reason it turn like crazy is that your cam lobe apply pressure and it wants to release that pressure either clockwise or counterclockwise. As long as you know where your teeth were line up to begin with then put them back in place without the use of a ratchet (you will swear to god every time the camshaft will turn on you.
If for whatever the reason you are not to sure once the belt is in place. mark with a bright yellow or white metal pen the timing mark on the sprocket and there reference point and take picture facing straight forward at the timing component (not taking the picture from an angle). Then send your picture if in doubt.
I also recommend using a wrench. Don’t use a ratchet when trying to set the cams in place. The spring tension from the valve springs will tend to push the cam once you get it past the lobe apex. Be patient, you want to take your time when setting this up. If not, you could damage the engine if you don’t get it back in time correctly. Just take things one step at a time. When you install the belt, start on the side that does not have the tensioner and keep things snug as you go around each pulley. Once the belt is installed, it should be relatively snug on the side opposite the tensioner and a little loose on the tensioner side before you put tension on the belt. That will help ensure that things stay in time when you set the tension.
Good luck and keep us posted.
- You must be logged in to reply to this topic.