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Some background info to all this is that the teeth on the timing belt stripped while driving and took out the valves (interference engine). Got a used cylinder from the salvage yard installed and went to put the new timing belt kit in, but I noticed the crank pulley is just barely off the timing mark. I can’t line it up without holding it in place with a wrench, otherwise it will revert back to its original position due to being under tension. I have the service manual and all it says to do is to line the marks. For anyone whose done this before, is that normal to have to do that or should the crank pulley be on the mark at the rested position?
See 27:35 in the video below. He doesn't get into how he adjusts it but does mention how it's "spring loaded", so I'm assuming he has to hold it in place with a wrench in order to get the marks lined up. I just assumed it would be on the mark without needing to hold it in place.
Some background info to all this is that the teeth on the timing belt stripped while driving and took out the valves (interference engine). Got a used cylinder from the salvage yard installed and went to put the new timing belt kit in, but I noticed the crank pulley is just barely off the timing mark. I can’t line it up without holding it in place with a wrench, otherwise it will revert back to its original position due to being under tension. I have the service manual and all it says to do is to line the marks. For anyone whose done this before, is that normal to have to do that or should the crank pulley be on the mark at the rested position?
See 27:35 in the video below. He doesn't get into how he adjusts it but does mention how it's "spring loaded", so I'm assuming he has to hold it in place with a wrench in order to get the marks lined up. I just assumed it would be on the mark without needing to hold it in place.
It’s spring loaded because of the valve springs. You need what’s called cam blocks. Plastic wedges that like a C or a wedge and you set the timing mark on head to cam and slide the cam block in to keep it in that position.
Cam blocks are usually vehicle sp civic although they may work on similar engines.
I had to replace the head. It looks like he just changed the belt, so he was able to leave both sprockets in their original positions and just matched the old and new belt.
Quote:
Originally Posted by ukrkoz
Belt is spring loaded with tensioner.
Why am I feeling that you have bad belt? That is off by yey much causing all this?
I don't think the new belt would be bad. Since it is spring loaded, it sounds like I will just have to manually line it up and hold it in place as I put the belt on, which sounds similar to the cam block method. Guess we'll see what happens this weekend! I'll update the thread when the time comes
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