Tighten up cam chain

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C1rca
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How do i tighten my cam chain because its been squeekin when i start it up?


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BadMojo
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Car: 2007 Mazdaspeed 3

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Are you sure it's your timing chain? Chains don't normally squeak, they usually tap or rattle. Are you sure it's not a belt instead?

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98s14inaz
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sounds like belts to me. tighten or replace your belts and get back to us.

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C1rca
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its not the belts ive made sure they are tight and its not a squeek its a rattle

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BadMojo
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C1rca wrote:its not the belts ive made sure they are tight and its not a squeek its a rattle
So...is it a "marbles in a tin can" type noise from the front of your valve cover? If so, you're looking at timing chain problems.

You can try removing the guide between the cam sprockets and see if that solves your problem. There's also a guide a bit lower down on the passenger side of the front of your engine, near the distributor. You can remove those two upper guides AND THOSE TWO ONLY. The guides on the lower chain *cannot* be removed.

Your problem may also be a worn upper chain tensioner (on the passenger side), in which case you should replace it.

The sound may also be coming from your lower chain, which is much more difficult to get to.

You should probably try to isolate the sound with a mechanic's stethoscope or even just a screw driver.

It's possible that your timing chain(s) is stretched, but the tensioner or guides is the more likely issue. The other issue could be low oil pressure due to a leak, clogged pick-up, bad oil pump, etc.

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98s14inaz
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try removing the guides first.

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C1rca
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Thanks


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