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Alignment on the Balance Shaft belt.

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Old Apr 27, 2006 | 02:28 PM
  #16  
Cajun Power's Avatar
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From: Lafayette, LA (Da Bayou)
Originally Posted by ExViTermini
but how can a physically connected gear/shaft combo with only one tick mark end up 180 degrees out...its impossible. If the oil pump gear is lined up with the mark on the block..its done.

Only thing is when you put the belt over everything, its extremely easy for the oil pump gear to move back one tooth, thereby upsetting your timing, obviously.

It can happen because not all the pullies are 1:1 ratio. the cam gears and crank are 2:1 the cams are only TDC every other time that the crank it TDC. The oil pump is 4:1 I think. That means that it is TDC 4 times for every one time the crank is TDC. In theory you could be at 90 deg with the crank and set the oil pump at TDC and it wil line up at crank TDC. Everything is in refence to the crank cycle. It is a very delicate process.
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Old Apr 27, 2006 | 06:05 PM
  #17  
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From: Virginia
Originally Posted by Cajun Power
It can happen because not all the pullies are 1:1 ratio. the cam gears and crank are 2:1 the cams are only TDC every other time that the crank it TDC. The oil pump is 4:1 I think. That means that it is TDC 4 times for every one time the crank is TDC. In theory you could be at 90 deg with the crank and set the oil pump at TDC and it wil line up at crank TDC. Everything is in refence to the crank cycle. It is a very delicate process.
Yes, this I understand. The way they were discussing it though is when you are putting the timing belt on. If everything (both cams, the crank, and the oil pump/balancer shaft) is at TDC, and you correctly put the belt on, then you are done. It is hard to get the belt on right w/out moving the oil pump gear for me sometimes. Took me a few times to get the hang of it.

Thats where checking everything comes into play. Sure on the 4g (compared to the Honda's) you have to roll it around more times...but I'd rather be safe and sure than sorry.
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Old Apr 28, 2006 | 07:47 AM
  #18  
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From: COLORADO
Yes your balance shaft is 180 degrees out of phase. Don't listen to these other people saying that it can't be because of the gear ratio and so forth. If they can't get a screwdriver into the hole to check the bs position, turn the timing mark stright up at the 12'oclock position (with the belt off of course), if it feels that it is wanting to roll towards the mark, it is in phase, if it wants to roll away from the mark, you need to turn it 180 and then you will be good. Good luck.

Aaron
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Old Apr 28, 2006 | 03:52 PM
  #19  
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WHTEVO apparently knows that trick, look at all the DSMs in his signature.
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Old Apr 28, 2006 | 04:21 PM
  #20  
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From: on the edge of sanity
this is why i eliminate the BS's out of all my cars... lol your oil pump BS is probably the culprit if everything "looks" right. trust these guys^, they know whats up.
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Old Apr 28, 2006 | 10:16 PM
  #21  
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From: COLORADO
Originally Posted by timzcat
WHTEVO apparently knows that trick, look at all the DSMs in his signature.
Haha, yeah i have worked on these engines a little more than i had ever planned on.
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Old Dec 30, 2007 | 05:50 PM
  #22  
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From: lindenwold NJ
i am having this problem now i the roll tords & roll away worked on all my dsms but did not work on the evo i think cus it only has 2k miles on it & nothings broken in yet haha


better luck to me next time !!!!
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