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3rd & 4th Generation (19921996 & 19972001) Toyota Camry Discussion for years: 1992-1996 & 1997-2001 Topics of discussion range from fuel economy, safety, modifications, performance all involving America's favorite family car, the Toyota Camry.

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Old 02-22-2007, 07:05 PM   #1 (permalink)
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Camshft timing marks 5SFE

I'm working on a 97 Camry 2.2 liter. I am installing the camshafts after installing the cylinder head and I am not sure I have the correct marks matching on the intake and exhaust cam gears. My Chilton's says to align the timing marks, but don't confuse them with the other marks on the gears without saying which is which. On the intake cam there are 3 countersunk marks over about 90 degrees of surface. On the exhaust cam are also three marks (going clockwise) - a double punch mark, then a single, then another single. Following the directions in the book, I ended up with the most clockwise mark on the exhaust cam aligning with the most counterclockwise mark on the intake. But I have no confidence that this is correct. Can anyone help?
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Old 02-22-2007, 07:49 PM   #2 (permalink)
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ignore the double punch. line up the 2 single dots on each cam they will roll into each other (so line up the top set of single and as u roll down you'll see the bottom set will also be lined up)

2 other things. Did you have a bolt in the exhaust cam so you didnt lose the spring action?
and make you lube the journals with white grease or stp or something more then just oil.
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Old 02-22-2007, 07:58 PM   #3 (permalink)
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Thanks, deekay. Yes, I installed the bolt between the sub gear and main gear on the exh cam, and I used 70w oil on all bearing caps and between buckets and lobes.

But...I have three marks on the intake cam, all way bigger than the punch marks on the exhaust cam.

I will try to post a couple of pix to show how I have them now.




Last edited by bill buttermore; 02-22-2007 at 08:08 PM.
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Old 02-22-2007, 08:05 PM   #4 (permalink)
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Thanks, deekay. I think I finally understand. To get the marks that are 5 teeth apart to both match up, I will need to move the intake cam 8 teeth CCW relative to the exhaust. I'll re-do it and post another pic just to make sure. Don't wanna get this wrong!
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Old 02-22-2007, 08:25 PM   #5 (permalink)
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you sound like u got it, the picture is wrong, rotate the intake counter clockwise.
the 2 little dimples on the ex cam will line up with the 2 big dimples on the intake

gl
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Old 02-22-2007, 09:07 PM   #6 (permalink)
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Here's how it looks now. Those lobes look a lot better now. At the TDC mark, the intake lobes have passed the buckets, and the exhaust lobes are straight up. Both little marks on the exhaust now line up with both big marks on the intake gear.




If this is correct, it may help the next guy better than the practically worthless description in Chilton's. Thanks again, deekay.

Last edited by bill buttermore; 02-22-2007 at 09:16 PM.
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Old 02-22-2007, 09:16 PM   #7 (permalink)
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thats it
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Old 02-22-2007, 09:33 PM   #8 (permalink)
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Excellent! I really appreciate the help. Now if the weather will cut me a break, I can build the rest of it back up, bolt it to the trans, and get it back in the car.
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Old 11-25-2012, 01:19 PM   #9 (permalink)
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So I am doing this job today and have the dimples lined up but the car won't start. I'm wondering if the knock pin on the intake cam has to be in a certain position when the dimples are lined up. For me, the knock pin is about 10 degrees past top dead center. The manual says to rotate the knock pin 10-45 degrees before top dead center. In other words does the position of the knock pin matter in relation to the camshaft dimple alignment?
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Old 11-25-2012, 01:37 PM   #10 (permalink)
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Bustedstuff - I'm sorry, but I posted this information more than 5 years ago, and the car is long gone. I cannot remember the specifics about the knock pin. I hope another member here can help you out. I can say that the cam lobes for #1 cylinder should be situated so that the valves are closed for #1 at the TDC mark.

Last edited by bill buttermore; 11-25-2012 at 01:39 PM.
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Old 11-25-2012, 04:24 PM   #11 (permalink)
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Quote:
Originally Posted by bustedstuff104 View Post
So I am doing this job today and have the dimples lined up but the car won't start. I'm wondering if the knock pin on the intake cam has to be in a certain position when the dimples are lined up. For me, the knock pin is about 10 degrees past top dead center. The manual says to rotate the knock pin 10-45 degrees before top dead center. In other words does the position of the knock pin matter in relation to the camshaft dimple alignment?
If you mean the knock pin on the camshaft timing belt gear then, no, where it is doesn't matter.
The timing belt cam gear will have the correct knock pin hole alignment.

What are probably referring to is when you roll the intake and exhaust cam gears together to get the valley and hill marks lined up.
Exhaust cam gear has the valley mark, intake cam has the hill or Tooth mark.
There are several marks on the exhaust cam, see above picture for the correct mark alignment.

If you haven't fully reconnected the wiring a no start is possible, Crank Position Sensor will cause a no start if its disconnected, its the wire that runs over the upper timing cover and down to the crank pulley

Last edited by RonR; 11-25-2012 at 04:25 PM.
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Old 11-25-2012, 05:27 PM   #12 (permalink)
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No you had it right the first time, I'm referring to the cylindrical notch in the intake camshaft that fits in the timing belt cam pulley. The manual calls it a knock pin.
Anyway, heres what happened. The knock pin got worn off or ground down somehow so I replaced the intake camshaft. I put it back together without aligning the notches and it ran for a couple seconds every time I started it. So I found this thread and aligned the notches. Now it won't run at all. So I'm really confused now.
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Old 11-25-2012, 08:48 PM   #13 (permalink)
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Take off the valve cover and check the cam lobes on cyl#1. At TDC they should all point up away from the buckets. Then carefully align the cam sprocket if you can't get a new knock pin in place. Can you drill out the old knock pin? Rotate the crank 2 revs and see if the lobes still point up and the cam sprocket marks line up. Reseal the valve cover with dabs of RTV. Some dollar stores carry them, for a dollar.
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Old 11-26-2012, 10:09 AM   #14 (permalink)
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Quote:
Originally Posted by bustedstuff104 View Post
No you had it right the first time, I'm referring to the cylindrical notch in the intake camshaft that fits in the timing belt cam pulley. The manual calls it a knock pin.
Anyway, heres what happened. The knock pin got worn off or ground down somehow so I replaced the intake camshaft. I put it back together without aligning the notches and it ran for a couple seconds every time I started it. So I found this thread and aligned the notches. Now it won't run at all. So I'm really confused now.

Can you compare the old camshaft with the new one?

The knock pin location and internal cam gear mark are fixed so should be the same on both intake cams, the old and new.
i.e. knock pin at 12:00 - gear mark at 7:00

Maybe you got the wrong intake cam?
But can't think another intake cam that would fit, 3SFE cam maybe?

Not sure if the intake/exhaust valves can hit each other if cams are out of sync, hope not.
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Old 11-26-2012, 10:40 AM   #15 (permalink)
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did you put a service bolt into the camshaft before you removed them? They have ghost gears, you would have probably noticed the one side of the camshaft spun when you removed it if you didnt
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