timing belt tensioner question

[BRIAN_MP5T]

Thanks Alot Brian unfortunatelly i will tell my Mechanic about that tomorrow and also to put a 6mm Allen in the Tensioner and take up as much slack as possible as to not over extend the spring. Ill let you know how that goes.

Here is a picture of the Tensioner and you should be able to clearly see an Allen key hole. That is where the Allen key goes in and is used to apply tension to the system when putting the spring on.

PS. It's probably more like a 4mm than a 6mm

What about doing the cams seals too when doing the timing belt and rest of the stuff?

Those are easy to swap out with the gears off so that is a valid suggestion and the seals are quite cheap.

 

[M2P503]

Thanks Brian for your Help man im dropping my car off to the Mechanic tonight so hopefully he will be able to fix this floppy Timing belt because i just bought the $5.00 spring from Mazda and i will mention that 6mm allen key adjustment screw on the Pulley Tensioner to him as well. Ill let you know how it goes.

 

[M2P503]

That's a good idea the Timing belt Kit never comes with those cam Seals but now that you mentioned it . Ill look into to that but for now im not getting any Cam seals . I did get a Valve cover Gasket though.

 

[M2P503]

Hey Brian thanks for the pic with the Tensioner the good news is i got my Timing belt Slack finally fixed thank GOD! All it needed was a stupid little Spring and that made the world of a difference.

 

[M2P503]

My Loose timing Belt =-( but it is now fixed

Here is a pic of my loose Timing Belt but it is now fixed and also the really stretched out spring that caused severe 1 inch flap !

 

[BRIAN_MP5T]

Jesus.. That would have ended badly...

 

[CheeseHelmet]

Wow.

 

[M2P503]

Yeah that Spring was so bad and stretched out that it looked like a lion Was chewing on it or something. Rule of thumb never ever ever pay some Guy off Craigslist $250.00 to do a timing belt. He will either do a terrible Job and forget to install something or Just end up leaving your Belts really Loose which will Trash and Blow your Motor in the end! Thank God I didn't blow my Motor But it was on the Verge of happening!

 

[M2P503]

(deadhorse(gun)(gun)Thank Jesus Is right man because it's only the Grace of God that My Motor Didnt Blow . I Thank God that my motor didn't blow man because as you can see It was on the Verge of exploding!

 

[hornsfan10609]

It's a non-interference motor so it wouldn't have exploded, just not ran very well, if at all.

 

[BRIAN_MP5T]

^^ Agreed, it would have been a waste of a Tow and Time...

But still Some things need to be done correctly...

 

[north42g]

Yeah close one...i better get to mine this weekend. I hope the rest of my parts come in today.

Are ther any decent cam gear/camshaft up grades I can do while I have everything apart?
Underdrive pully?
What are the Pros & Cons to an Underdrive pully?

 

[BRIAN_MP5T]

Underdrive literally turns the accesories slower than they should normally go to reduce drag.

All Things will perform worse at an idle.

Your A/C will not be as strong
You will charge less
You will have lass Power Steering.

Once the car is moving, most everything will operate normally.

 

[spokethedog]

I've Read on some sites that this is an interferance engine is this true?

 

[BRIAN_MP5T]

No, never unless a person has modified pistons at very high compression... Even then unlikely.

 

[Mopar92]

I thought these engines are NOT interference engines? I'm not saying run it until it breaks.... But.... I'm getting ready to do my belt very soon.

 

[north42g]

How many miles on your car Mopar92?
I still haven't done mine and I'm at 117,000!

 

[north42g]

I understand that the FS is an Interference engine. According to Mitchell Ondemand5/Shopkey5.

 

[MazdaSpeeder]

The FS is listed as an interference, and whether or not it is one is more a matter of defining your terms. In most cases, belts breaking have caused no damage, hence the popular description as non-interference. However, a few people have had a belt break at highway speeds and bent valves, etc. So, I guess the best way to say it is that it's an interference engine that you often luck out on because it normally behaves as if it is non-interference.

My guess is that it is listed as interference because there are cases when damage could be done, regardless of how rare.

 

[CheeseHelmet]

The FS is listed as an interference, and whether or not it is one is more a matter of defining your terms. In most cases, belts breaking have caused no damage, hence the popular description as non-interference. However, a few people have had a belt break at highway speeds and bent valves, etc. So, I guess the best way to say it is that it's an interference engine that you often luck out on because it normally behaves as if it is non-interference.

My guess is that it is listed as interference because there are cases when damage could be done, regardless of how rare.

Yup, if you go by what the definition of a non-interference engine is (both sets of valves can be safely opened with the piston at TDC) then the FS-DE is non-interference. However as you stated, some people have reported having bent valves when a belt snaps under load.