This is the craziest thing I have ever seen...
#1
This is the craziest thing I have ever seen...
This guy changed his forward cam shaft seals by taking off the cam sprocket only.
Volvo 850 Front Cam Seals - Volvospeed Forums
What's next, change the wheel bearing without taking the wheel off?
Volvo 850 Front Cam Seals - Volvospeed Forums
What's next, change the wheel bearing without taking the wheel off?
#5
That's how I did mine...I wouldn't have done it any other way. The sprockets don't keep time, the cams keep time. As long as your careful, the cams won't spin. People are under the assumption that once the time belt is removed, the cams spin freely and even the slightest nudge is going to set your car out of time and make it explode. It takes quite a bit of force to rotate the cams. I've never used a cam locking tool to change the belt either.
#6
#7
mark everything with white out when its all at TDC, don't have to ever worry about loosing time. this is the quickie repair, not the correct was of doing it, but works if you are in a pinch.
oh and the cams nudge them and they will spin left or right to the next flat and stop.
oh and the cams nudge them and they will spin left or right to the next flat and stop.
#10
I think he's only talking about this type of repair in not needing to mark it or bring it to TDC. It surely would be possible to do it that way.
I think simply due to the damage possible if something shifted I'd still bring it up on TDC and make sure the crank and cams were on their marks. It isn't that much effort to get it there before you do this. It's just so much safer and although it shouldn't move that way you can check the marks and feel safe hitting the key. Just my two cents.
I think simply due to the damage possible if something shifted I'd still bring it up on TDC and make sure the crank and cams were on their marks. It isn't that much effort to get it there before you do this. It's just so much safer and although it shouldn't move that way you can check the marks and feel safe hitting the key. Just my two cents.
#11
Marking the cams and crank timing marks with white automotive touch up paint is always a good idea as it makes double checking your work easier.
#12
#13
#14
The gears bolt straight to the cams with 3 bolts. If you're just doing a timing belt, it's pretty screw-up proof as long as you mark everything (or more likely, it is already marked from the last time :P ).
If somehow it all got rotated, there is a notch which should be horizontal at TDC, and the cams are marked to indicate which way is "up" at TDC. (I forget what exactly the mark is, but it was all in the Haynes manual when I did my headgasket)
If somehow it all got rotated, there is a notch which should be horizontal at TDC, and the cams are marked to indicate which way is "up" at TDC. (I forget what exactly the mark is, but it was all in the Haynes manual when I did my headgasket)
#15
#18
The only time I have aligned the timing marks was when we were having a MWC meet and we wanted to check/re-do the timing on my block from when I installed the NA cams. We wanted to compare the timing marks on the cam sprockets/crank to the slots on the end of the cams behind the cps and rotor. It turns out that my timing was way off from when I installed the NA cams, and that was my fault for using the wrong timing mark on the crank.
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