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Old 01-25-2014, 01:27 PM   #41
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If you're making X times more power than stock then its a no brainer. The reasoning is simple - crankshaft rotation is not smooth. The crankshaft accelerates with every combustion event. If you're making 3 times the stock power, then guess what, that acceleration is 3 times higher. The belt rides directly on the crankshaft and therefore it is subject to much higher forces as well.

Hence I have the blue belt.
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Old 01-25-2014, 02:34 PM   #42
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Quote:
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...The guy had 10 listed and I grabbed the last one. I will let you guys know if he relists some more.
Looks like they're already listing again. Shows three available. I agree, for that price, why the hell wouldn't you go blue.
Gates T179RB Engine Timing Belt High Performance Automotive Timing Belt | eBay
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Old 01-27-2014, 10:13 AM   #43
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Yup, that is the same guy. They ship fast too!
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Old 05-17-2014, 01:54 PM   #44
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I just cranked it for the first time since I did the turbo install and timing belt swap. I forgot I stuck the blue belt in there since it didn't sound any different. My car isn't quiet by any means, but I don't hear any sounds that would be considered annoying on the street. I have not tried a 30 degree cold start, which might be a different story.
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Old 06-05-2014, 12:06 PM   #45
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SOB!!! While getting ready to pull new wires for sequential fuel and COP I noticed something strange.


I noticed a small bolt sticking through the upper timing belt cover right below the valve cover. I pulled the valve cover and timing belt cover and found this.


That is freaking less than 100 miles on a brand new belt. Luckily I found the first one for cheap and picked up a replacement from the same guy for $35 again. I am glad timing belt replacements are easy on these cars. I am used to the hell of front wheel drive timing belt replacements on 1.8T VW engines (i've done 8 of those) and rank 2nd on my worst jobs to do, right after FWD clutch replacement.

I found the culprit.


I found one of the timing belt cover backing plate bolts missing and three others were loose too. I knew I should have used locktite on these too, i did on every other bolt. Bad news is that I think the one that came out is stripped on the head side. I will have too drill and tap for a slightly larger bolt or come up with some way to prevent this from happening in the future. Right now I wish I could just leave all these covers off!

I never heard any strange noises or anything. By the look of the belt I am lucky to have made it home. These belts must be real strong if it can stay in tact with half of the cords being cut!
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Gates standard or Blue Racing Timing Belt?-img_20140604_202014_731.jpg   Gates standard or Blue Racing Timing Belt?-img_20140604_203248_935.jpg   Gates standard or Blue Racing Timing Belt?-img_20140604_203651_957.jpg  
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Old 06-05-2014, 12:08 PM   #46
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Nice front thermostat block off btw!
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Old 06-05-2014, 12:10 PM   #47
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I had that happen to me, except the bolt went through the valve cover O_O
Thats the story of how I have exposed timing belt.
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Old 06-05-2014, 12:12 PM   #48
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Be careful with those bolts. They are different lengths and you really need to pay attention. The holes are blind. If you put a too-long bolt into one of the holes and torque, the result is either a sheared head or stripped threads.

Oh . . . and loktite FTW!
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Old 06-05-2014, 01:00 PM   #49
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I've started to just use my drill to "torque" those M6x1 bolts. It says 19ft/lbs. Whatever that means.

If I try to put any force on them I snap the heads off.
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Old 06-05-2014, 02:33 PM   #50
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I might look into running an exposed belt. I have always been worried about getting crap in an exposed belt, but after this crap I might just get some adjustable cam gears and run with an exposed belt. I need to do some research first. Do you guys take all the covers off? I always thought most people just trim the valve cover so you can access the can gears but leave other covers on.
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Old 06-05-2014, 02:36 PM   #51
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Quote:
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Nice front thermostat block off btw!
Thanks! Made it out of 1/4" 6061 plate tapped for 1/4 NPT and used 1/4 NPT tee and barbed fittings. Works great. 3 years and 5 track days with no leaks or issues.
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Old 06-05-2014, 03:46 PM   #52
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I've been running fully exposed with blue belt for 3 years...no issue yet as daily driver...

homo question to thread jack this a little....is there a safe way to clean this belt to keep it shiny blue and pretty??
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Old 06-05-2014, 08:41 PM   #53
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Yes. Leave it covered.
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Old 06-06-2014, 11:09 AM   #54
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Quote:
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Yes. Leave it covered.
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Old 06-20-2014, 03:27 AM   #55
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Who's run these consistently in sub zero weather and can comment on the cold start (literally) noise?
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Old 06-20-2014, 09:07 AM   #56
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I have had a few PMs now about the source of the $35 blue belt.

Engine Timing Belt High Performance Automotive Timing Belt Gates T179RB | eBay

Just do an EBay search for Miata gates timing belt and this guy pops up. He seems to relist frequently.
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Old 07-01-2014, 03:43 PM   #57
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Glad to know that it's properly listed. I was convinced that he had accidentally listed this as a timing belt rather than a serpentine/accessory belt.

Let's hope there is no such thing as a Gates "rep"
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Old 07-01-2014, 03:45 PM   #58
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I'll give anyone a $20 bounty to find a Gates Blue belt for an F2T.
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Old 07-01-2014, 05:28 PM   #59
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Quote:
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I'll give anyone a $20 bounty to find a Gates Blue belt for an F2T.
Is it the same belt as the F2?
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Old 07-01-2014, 05:30 PM   #60
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Quote:
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Is it the same belt as the F2?

12v F2, yes. No idea if the 8v F2 uses the same one.
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