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Coupes & Convertibles Mazda Miata Mazda MX-5 Miata (2005 and earlier)
4340 messages, Last post on Aug 25, 2009 at 9:51 AM
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1990 5 speed with 176k miles . The car recently started to stumble while accelerating and acts like it is loosing power. I did the usual external check of all the wires, vacuum lines etc. but nothing loose. The check engine light does not come on. It does this all the time and not just when cold or after running a while. Any suggestions where to start? Thanks, Jeff |
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Replying to: chrisa222 (Apr 29, 2008 6:21 pm) I see no particular reason to avoid it. '90 models had some crank issues early on, and '99 models had clutch chatter and some other issue (I forget now). But overall major issues are few and far between.
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Replying to: ateixeira (May 01, 2008 11:57 am) Jeff
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Replying to: jeff84red (May 01, 2008 12:42 pm) Wires for these should be replaced every 30k. I have a while to go. |
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I'm wondering how many miles (over and above the 60K recommended by mfg) owners have driven their Miata's prior to changing the timing belt ? Can someone expect to get 90K miles on the original tb ? I recently bought this one owner commuter car from the dealership that sold it originally. They told me that "all required maintenance had been done". Since then I have found that the timing belt has never been changed ( 82K mi on the odo now ). The car has otherwise been cared for with maintenance records showing everything else having been done. ( The owner obviously traded the car prior to doing the expensive timing belt ) I have been keeping the RPMs relatively low ( below 4500 ), but I do realize that I need to change out the TB soon.
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Replying to: toydriver1 (May 11, 2008 6:32 pm) They used a whole timing belt kit and did the water pump, too. The job got a bit pricey but it's the first major expense I've had in 8 years, so I can't complain. On a bum note, I had my timing advanced to 14 degrees BTDC, and they set it back to stock 10 degrees. Would you believe I feel the difference? I gotta find those old instructions so I can advance the timing again. |
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Replying to: toydriver1 (May 11, 2008 6:32 pm) If it fails before the rest of the car I will report on how many miles (or years) the belt actually lasted. I understand it is a non-interference engine so a broken belt won't trash the pistons and valves.
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Replying to: tsotsi (May 19, 2008 7:46 am) I advanced the timing, and it fixed the power loss issue. They had it set to 1 degree BTDC, it's supposed to be 10 degrees! I advanced it more than stock to 14 degrees. Runs like a champ now. 
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Due to the fact that my '99 miata's engine has died to the point of a rebuild, I have opted to install an R1 engine and transmission into it. However, I do not have the resources or the time. Does anyone know of a shop who could do this in the Alabama area. I'm willing to travel to Georgia and Florida. Lisa
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Replying to: lsa_1977 (Jun 26, 2008 12:28 pm) You should go to www.miata.net, a lot more readers there that know a lot about their cars.
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