Timing Belt Question

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RisinTiger
Posts: 30
Joined: Mon Oct 15, 2012 9:42 pm
Car: 1993 Nissan 300zx Convertible ~ Pearl White
2000 Toyota Corolla ~ Super White
Location: Orange County, CA

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Hey guys, I've been researching around about how to do the 120k service. this would be my first time doing it so i'm kinda nervous. My question is when you aline your timing belt. Is it as simple as to line up the timing mark with the belt and it would be aline? or do i need to move the gear back 20 degree counterclock for it to auto tension? like what this poster said.
if so how do i do that?

http://www.wallpaperama.com/forums/how- ... t6176.html

http://www.youtube.com/watch?v=cjU_G7GKdEM

what do you guys think? also what would be a good technique to take out the cam seals and the cam itself.


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t.mcginley.jr
Posts: 1547
Joined: Fri Jun 01, 2012 5:50 am
Car: 2002 Nissan Altima SE 3.5
1990 Nissan 300ZX NA 2+0
1966 Ford Mustang
Location: New Jersey, USA

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Here's a much better how-to:

http://www.ttzd.com/tech/timingbelttech.html

To get the belt lined up, first try to get the notches on the crank sprockets lined up with the marks on the rear timing covers. Some of the gears (I think driver's side ones) will want to rotate when you turn them because of the pressure from the valve springs. Once they are relatively close, and you line up the punch mark on the crank sprocket with the notch on the oil pump housing, try putting the belt on. The only important part is to have the notches on the cam sprockets lined up with the lines on the timing belt. The marks on the rear timing covers are just for reference.

As for rotating the engine manually for the tensioner, follow the FSM procedure exactly like it says. Once you set the tensioner and rotate the engine a few times, you have to keep checking the gap with a ruler or feeler gauge. If the gap is too wide, take the whole tensioner off, put it in a vice, close it some and put the stopper bolt in and try again.

For cam seals, remove the cam sprockets and use a pick or something similar to remove the old ones. Then use a socket or piece of PVC pipe and tape the new seal in with a hammer/mallet. You can use the old seal as a buffer when doing this. Also remember to lube the new seals up good with oil.

Is there a reason you want to remove the cams themselves though?

RisinTiger
Posts: 30
Joined: Mon Oct 15, 2012 9:42 pm
Car: 1993 Nissan 300zx Convertible ~ Pearl White
2000 Toyota Corolla ~ Super White
Location: Orange County, CA

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http://www.ebay.com/itm/GENUINE-NISSAN- ... 61&vxp=mtr

well my car is 120k. and i want to change the seals too when i get in there

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NolimitZ32
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Joined: Fri Jun 27, 2008 9:07 am
Car: 91 AG2 2+0 TTMT swap/E39 BMW 540i6/E53 4.6is Dinan S3
Location: Houston, TX

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You don't have to remove the cams (camshafts) to change the seals, just the cam gears.

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t.mcginley.jr
Posts: 1547
Joined: Fri Jun 01, 2012 5:50 am
Car: 2002 Nissan Altima SE 3.5
1990 Nissan 300ZX NA 2+0
1966 Ford Mustang
Location: New Jersey, USA

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^ what he said, no need to remove cams


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