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cam belt

Postby willie » Wed, 19 Sep 2018 12:06 +0000

I want to change the cam belt and see several makes for sale out there, just wondering if there is a recommended make.. The car is 1990 but only 72K miles and i cant find any record of it being changed.

Also is there anything else i should change at the same time ? water pump ?etc

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Re: cam belt

Postby 93 Mk1 » Wed, 19 Sep 2018 5:37 +0000

I find the Blue Print stuff for these cars to be pretty okay. The water pump should be looked at if you are doing the timing belt. A genuine Mazda cam cover gasket is recommended. And as you have the cam over off, it might be worth checking to see if the CAS seal is leaking.
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Re: cam belt

Postby willie » Wed, 19 Sep 2018 5:47 +0000

Thanks , Can I ask what the CAS is ?
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Re: cam belt

Postby 93 Mk1 » Thu, 20 Sep 2018 9:47 +0000

willie wrote:Thanks , Can I ask what the CAS is ?


It's the cam angle sensor. It has a rubber seal that is prone to leaking. It is quite easy to do, especially when removing the cam cover.
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Re: cam belt

Postby willie » Thu, 20 Sep 2018 8:46 +0000

Thanks once again.
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Re: cam belt

Postby Steve » Thu, 20 Sep 2018 10:46 +0000

Also, I think you mentioned your car is auto? If so, you may need a crank locking tool to hold it while you loosen/tighten the crank bolt.
This thread has a pic of one you can make near the end :
https://forum.miata.net/vb/showthread.php?t=554627

This is worth a watch (skip to 1min in)
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