What's up with the cam timing marks on the VVT-I engines?
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What's up with the cam timing marks on the VVT-I engines?
Hello everyone! New member here.
I just picked up a 2000 that was due for it's timing belt. I've done some timing jobs before but not on an engine this advanced, just some older Honda's and Mazda 4-bangers. I was researching and I see that there are two timing marks for the cams, one is a straight line indicating TDC and one is a "T".. what is the T shaped mark used for?
I also read in the factory repair manual that the crank should be rotated 50* ATDC before removing the timing belt. Why is this?
Thanks for any help! I'm trying to learn as much as possible before going into this.
-Dawson
I just picked up a 2000 that was due for it's timing belt. I've done some timing jobs before but not on an engine this advanced, just some older Honda's and Mazda 4-bangers. I was researching and I see that there are two timing marks for the cams, one is a straight line indicating TDC and one is a "T".. what is the T shaped mark used for?
I also read in the factory repair manual that the crank should be rotated 50* ATDC before removing the timing belt. Why is this?
Thanks for any help! I'm trying to learn as much as possible before going into this.
-Dawson
#2
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The normal marks are for 0 degree (TDC).
When in this position the left cam is very susceptible to spring out of position. Advancing to 50 degrees moves the pulley notches to the "T" marks. The left cam is not under pressure in this position and the belt can be removed safely.
When in this position the left cam is very susceptible to spring out of position. Advancing to 50 degrees moves the pulley notches to the "T" marks. The left cam is not under pressure in this position and the belt can be removed safely.
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spuds (04-16-19)
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The normal marks are for 0 degree (TDC).
When in this position the left cam is very susceptible to spring out of position. Advancing to 50 degrees moves the pulley notches to the "T" marks. The left cam is not under pressure in this position and the belt can be removed safely.
When in this position the left cam is very susceptible to spring out of position. Advancing to 50 degrees moves the pulley notches to the "T" marks. The left cam is not under pressure in this position and the belt can be removed safely.
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