Timing marks on cam gears...

[packinkimber45]

Hello everyone. I am going to be assembling my motor soon and I was wondering if I can get something clarified. I have read quite a bit on doing the timing belt. I know that the exhaust and timing marks have to be aligned at 3 oclock and 9 oclock with the dowel pins at 12 oclock. How about the 9 oclock exhaust side and 3 clock intake side. Do they have to be exactly lined up to the valve cover plane? Or is that not relevant? I was checking my motor out and I can line up the marks that meet in the middle but not the ones on the outside... am I making sense here? Thanks in advance.

 

[cano86]

no they shouldn't align am gonna look for a picture and post it for you

 

[cano86]

here is a pic

 

[packinkimber45]

I'm talking about the circled areas on the revised picture. Does it have to be lined up with the cylinder head plane as well?

 

[cano86]

I'm talking about the circled areas on the revised picture. Does it have to be lined up with the cylinder head plane as well?

Yeah those should go aligned I wish I had a better pic to show you though. there should be a zinc plate thats flat on top and level to your VC and thats where you should set your mark

 

[steve]

I'm talking about the circled areas on the revised picture. Does it have to be lined up with the cylinder head plane as well?

They are close but actually do not line up because they are not 180* apart from the other mark.

The same sprockets can be used on either the exhaust or intake cams. Depending on which cam it used on one or the other mark will be used to timing. While the intake cam dowel pin is 0* (12 o'clock) the exhaust cam dowel pin is 3'5" advanced and the mark reflects this.

 

[packinkimber45]

Thanks steve. I figured they wouldnt line up, because when I was lining them up it seem impossible for the outside ones to line up as well on the cylinder head plane. Thanks again.

Thank you cano too.

 

[blcknspo0ln]

yup, it's be discussed a bagillion times here. Just make sure you pay attention to the second post in the article with the link to another thread, where Steve explains it further.

 

[packinkimber45]

yup, it's be discussed a bagillion times here. Just make sure you pay attention to the second post in the article with the link to another thread, where Steve explains it further.

Thanks Tom. Which article is it you say to look at the second post? I must be blind. Lol

 

[snowborder714]

Not sure if this is the one Tom was talking about, but here's a good explanation from Steve:
http://www.dsmtuners.com/forums/cyl...1-resolved-my-timing-off-2.html#post151555589

 

[blcknspo0ln]

Not sure if this is the one Tom was talking about, but here's a good explanation from Steve:
http://www.dsmtuners.com/forums/cyl...1-resolved-my-timing-off-2.html#post151555589

yup, that's the link inside the link that I linked to.

 

[SnowBird]

line the notches up first and then zip tie the belt to the gears. After that you can move them together to align the dowels, once you start lining up the other sprockets and put the belt on them it all starts to come together.