Need Help On 85rx7 Gs

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07-06-2005, 07:09 AM

importracer10

Junior Member

Thread Starter

Join Date: Jul 2005

Posts: 1

Good morning all i'm a newbie so i hope to do my best . ok I just purchased a 1985 mazda rx7 gs model it has like 177,000 on it i wanted to know if anyone knew why it would die out in 3rd gear i runs like a champ when i start it but it seems when it warms up it dies out i ran it to work this morning and like 10 min into the ride id died in third gear any help on what it might be? is there a fix for this problem ? Any help would be greatly appreciated yuo can email me directly at gargola1227 @ yahoo.com please and thank you .....

07-07-2005, 09:49 AM

jgarza77

Senior Member

Join Date: Dec 2004

Location: Dallas Texas (Oak Cliff)

Posts: 210

[quote name='importracer10' date='Jul 6 2005, 05:09 AM']Good morning all i'm a newbie so i hope to do my best . ok I just purchased a 1985 mazda rx7 gs model it has like 177,000 on it i wanted to know if anyone knew why it would die out in 3rd gear i runs like a champ when i start it but it seems when it warms up it dies out i ran it to work this morning and like 10 min into the ride id died in third gear any help on what it might be? is there a fix for this problem ? Any help would be greatly appreciated yuo can email me directly at gargola1227 @ yahoo.com please and thank you .....

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so it always dies in 3rd gear? or just after warm up? if only after warm up, I would run a compression check both while engine is cold and again when warm, chances are engine may be tired out.

07-11-2005, 12:47 AM

barely street legal rotary12a

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Join Date: Aug 2002

Location: pasco fl.

Posts: 71

run a compression check like rotor freak said. make sure you don't pull all plugs out only one at a time and the compression should be with in 10 to 20 psi of each other thats what i look for in my motors if not i would break it down and freshin the motor up it does have 177,000 miles on it. look at apex seals and housing to make sure no delamating is going on and check ecentric shaft for ware and rotor bearing. you probably also got alot of carbon build up in the motor like on the rotors and apex seals. you can run amsoil 2 cycle race oil in the tank with a fuel take of fuel that will help break some carbon loose thats what i do now no metering lines just pre mix at the pump!