Cam belt alignment question

Purfler · Postby **Purfler** » Mon Jan 20, 2014 5:01 pm

I'm changing the cam belt on my NA and am not happy with the alignment. These photos show it:

https://picasaweb.google.com/timrobinson22/MX502

By my eye (but it doesn't show in the photo) the inlet is about half a tooth out. I have alos used the alignment system in Rod's book (the Veloce one). By those mark it is OK, but I'm not happy.

Any thoughts?

Thanks again,

Tim

Regie · Postby **Regie** » Mon Jan 20, 2014 5:13 pm

from memory there are suppose to be 19 ribs between the marks on the cam gears.

looks like you have 19 there you are on the money

aka_juffa · Postby **aka_juffa** » Mon Jan 20, 2014 5:29 pm

Your E and I are lned up, so like Regime I think you are good to go.

If you want a 3rd opinion then check out the timing belt page on the big forum.

http://WWW.miata.net/garage/timingbelt

J

Gladiator · Postby **Gladiator** » Mon Jan 20, 2014 5:44 pm

I agree. It looks ok. If it still lines up the same after carrying out the tensioning proceedure (see the book). IMO it's all good.

Purfler · Postby **Purfler** » Mon Jan 20, 2014 6:06 pm

Thanks for the comments. I will do the tensioning in the morning and see how it goes.

Thanks again,

Tim

droo · Postby **droo** » Mon Jan 27, 2014 12:17 am

i havent been able to be on for the past week - i made this a while back, might help out.

https://www.youtube.com/watch?v=pOOUIwS ... I&index=15

Purfler · Postby **Purfler** » Mon Jan 27, 2014 1:10 pm

Thanks for the reply droo. I had found your clip myself and found it helpful. I used a slight variation of it where I had the cams held in place with spanners and moved the crank half a notch. Despite my concern at it not looking properly aligned after I did the tensioning it was all fine. This was the first time I have replaced a cam belt with the engine out and it is certainly easy to see what you are doing.

Tim