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Post by yoshidayang on Sept 10, 2008 23:00:30 GMT -5
Hi, well im pending sale of my 300zx and pendign purchase of a first gen rx7 it still runs and goes but i was told the apex seals will need replaced soon. I only have vague knowledge on rotaries and i went to atkins site and theres so many rebuild kits i dont know what to do or where to go. i plan to just keep it going while i save up to move to a second generation turbo motor. can anybody just enlighten me as to what to do? i live in little rock.
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Post by DriftHappy on Sept 11, 2008 12:44:11 GMT -5
New Apex Seals only cost about $200 but the apex seal springs, side seals & springs, corner seals & springs, oil ring seals & springs, front and rear main seals, lower manifold gasket, oil pan gasket, water pump gasket, & distributor o-ring add up cost when replacing them. Not to mention going ahead and installing new eccentric shaft bearings and resurfacing worn surfaces or replacing worn components. A DIY will cost you about $600-800 to rebuild a 12A. A little more for a 13B if the first gen is a GSL-SE. You can source a 13BT (2nd gen turbo engine) for fairly cheap. I got a Series 5 ('89-'91) out of Dallas for $1300 shipped. That included the engine, transmission, harness, ecu, HKS BOV, intercooler, piping & hoses, driveshaft, air box & HKS filter, MAF, all sensors, fuel pump, turbo, a/c compressor, ps assembly, oil cooler, etc...
I would probably save your money and drive the car until it dies then do the swap. I'm sure Kevin could give you some pointers on the swap. If I remember right everything is straight foward except you will need to source a couple of parts like a '84-'85 GSL-SE 13B front engine cover with motor mounts. I'm unsure about the driveshaft. I think the stock 12A shaft mates to the 13BT tranny with ease. I would read up on it on RX7 Club if you already haven't.
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Post by yoshidayang on Sept 11, 2008 23:15:49 GMT -5
thanks for the reply i pmed kevin and probably will just run it around until it blows lol... im not sure on the year model but i did learn that it has a cracked apex seal and smokes alot but still drives around, its only $500.00 and the body is in good shape.
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Post by twinrotorfb on Sept 12, 2008 8:43:27 GMT -5
Are you going to buy another engine? The one in your car still might be salvagable, but will not be if you do drop a seal(well, you'll loose an end plate, mid plate and a rotor housing)
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Post by yoshidayang on Sept 12, 2008 9:26:53 GMT -5
well it depends on how much itd cost to fix the current one (ill know if its a 13b or 12a tomorrow) because i plan to move it to a 13b turbo from a second gen later, but id like to drive the car a bit while im saving for the swap. i had a friend who probably coulda done the work cheap for me but he moved soo yeah lol
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Post by yoshidayang on Sept 17, 2008 19:56:44 GMT -5
its a 1984 with a 5spd if that helps
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Post by DriftHappy on Sept 17, 2008 21:29:41 GMT -5
'79-'83 = all 12A engines
'84-'85 = both 12A & 13B engines (GSL-SE = 13B)
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Post by yoshidayang on Sept 21, 2008 16:57:53 GMT -5
ok its a 12a gsl model. so any ideas on what I should ddo engine wise? 102k miles on it
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Post by DriftHappy on Sept 21, 2008 21:31:36 GMT -5
102k is pretty low mileage for a 12A. I would probably just drive it like it is until you do your swap.
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Post by yoshidayang on Sept 22, 2008 8:57:50 GMT -5
how hard is a 13bt swap in one?
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Post by DriftHappy on Sept 22, 2008 12:32:15 GMT -5
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Post by twinrotorfb on Sept 25, 2008 9:27:33 GMT -5
If you don't destroy the 12A in the car, I'd be willing to buy it for the right price  |
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