12a dry weight
02-26-02, 04:42 PM
#1
Tennis, anyone
Thread Starter
12a dry weight
Hey All,,say a person was going to pull out the rotary
for overhual,drained the oil,water,unbolted the exhuast,
and intake,along with the transmission.so it's just the
core,,rotor hauseings/rotors,oil pan,water pump,how
heavy is it ?? can one person lift it up and out ??
of course the hood is removed too,, or is it easier to use
as cherry picker and leave the transmission on..because
i'm thinking,,,pull the engine,leave the trans blocked up
onder the car,,i don't know the weights,,,dry,,,
i hope i made this understandable,,,,thanks
for overhual,drained the oil,water,unbolted the exhuast,
and intake,along with the transmission.so it's just the
core,,rotor hauseings/rotors,oil pan,water pump,how
heavy is it ?? can one person lift it up and out ??
of course the hood is removed too,, or is it easier to use
as cherry picker and leave the transmission on..because
i'm thinking,,,pull the engine,leave the trans blocked up
onder the car,,i don't know the weights,,,dry,,,
i hope i made this understandable,,,,thanks
02-26-02, 05:59 PM
#2
Old [Sch|F]ool
Trust me... NO... 
I was able to carry my bare 12A down the stairs (it's only some housings bolted together - no innards 
) but I still needed help getting it in and out of the hatch.
Pulling the engine means a 3foot or so deadlift UP. If you can deadlift ~300+lb, when the weight is 3 feet away from you, sure go for it!
I was able to carry my bare 12A down the stairs (it's only some housings bolted together - no innards ) but I still needed help getting it in and out of the hatch.Pulling the engine means a 3foot or so deadlift UP. If you can deadlift ~300+lb, when the weight is 3 feet away from you, sure go for it!
02-26-02, 09:30 PM
#3
Tennis, anyone
Thread Starter
It's that heavy ??? 300lbs or so,,ok,now i know..
thats pretty lite,i guess,for a 100 hp engine 12a vs a 100hp resipracating engine,,or is that a close call, on the two
thats pretty lite,i guess,for a 100 hp engine 12a vs a 100hp resipracating engine,,or is that a close call, on the two
02-26-02, 10:08 PM
#5
Passenger
Posts: n/a
i thought the 12A weighed 300 lbs ready to run? i could have sworn i read that in some mazda propaganda.
i don't think you'll find too many mass produced engines less then 300 lbs. most 4 bangers arn't that light. i'd guess a little iron duke (2.2 pontiac 4 cyl) weighs as much as a 2.8 V6. not that a 2.8 is heavy
i don't think you'll find too many mass produced engines less then 300 lbs. most 4 bangers arn't that light. i'd guess a little iron duke (2.2 pontiac 4 cyl) weighs as much as a 2.8 V6. not that a 2.8 is heavy
Trending Topics
02-26-02, 11:32 PM
#8
Passenger
Posts: n/a
Engines that DON'T double as an anvil
lolthis is what i was looking for
Mazda 12A and 13B 260 (109)
Mazda 10A rotary 224 (20) (Cosmo) (bare)
Mazda 10A rotary 268 (20) (R100) (bare)
Mazda 10A rotary 190 (27) (R100) (without thermal reactor)
Mazda 10A rotary 280 (27) (R100) (with thermal reactor)
Mazda 12A rotary 348 (20) (RX7) (with oil and water)
Mazda 12A rotary 356 (20) (Japanese model turbo, EFI)
Mazda 12A rotary 275 (85) (w/flywheel, t.reactor, no alt.)
Mazda 13A rotary 301 (20) (R130 Lucia - Japan only) (bare)
Mazda 13B race 242 (95) 2-rotor race motor, with accessories
Mazda 13G 3-rotor race 319 (95) 3-rotor race motor, with accessories
Mazda 13J 4-rotor race 396 (95) 4-rotor race motor, with accessories
Chevy V6-60 2.8, 3.1 350
Pontiac L4 350 Iron Duke, Tech IV
bet ya didn't know my back was such an accurate weighing device eh?
Honda B18B four 326 (131) 1995 Civic
Honda B20B four 318 (131) 1997 Civic
Ford Zetec-SE 1.3 DOHC 202 (107) 1996 Fiesta
Suzuki Cultus 3 cyl 139 (7,38) (Geo Metro, Chevy Sprint)
VW flat-4 air cooled 200
Honda Civic 1200 161 (151) 1974 Civic, excluding clutch and radiator but including weight of coolant water and lubricant
holy ****! but do they really count as actual engines?
02-26-02, 11:59 PM
#9
Tennis, anyone
Thread Starter
Ha,Ha, WOW,,thats to much information,,,260lbs huh ?
thats still a lot,for a people,,,to handle,,gonna need
a lift,,,may as well keep the tranny bolted up too
thats still a lot,for a people,,,to handle,,gonna need
a lift,,,may as well keep the tranny bolted up too
02-27-02, 01:34 PM
#10
Apprentice Guru
Join Date: Oct 2001
Location: Cloud Nine and Peak of God
Posts: 1,425
Likes: 0
Received 0 Likes
on
0 Posts
The most accurate data I have found is from a section dealing with the deveopment of the Turbo II
" at 171kg [376.2lbs] it was only 18kg [39.6 lbs] heavier than its 146bhp counterpart."
These are Gen 2 engines which were marginally basically lighter than the 135 bhp 13B of the gsl. se
Thus, the enine weights appear to be in the order of:
12A 1980 342 lbs
13B 1984 344 lbs
13B 1986 336.4 lbs
13BT 1988 376.2 lbs
I think the small difference between the two 1984 engines is due to the oil cooler being included in the 12A weights.
" at 171kg [376.2lbs] it was only 18kg [39.6 lbs] heavier than its 146bhp counterpart."
These are Gen 2 engines which were marginally basically lighter than the 135 bhp 13B of the gsl. se
Thus, the enine weights appear to be in the order of:
12A 1980 342 lbs
13B 1984 344 lbs
13B 1986 336.4 lbs
13BT 1988 376.2 lbs
I think the small difference between the two 1984 engines is due to the oil cooler being included in the 12A weights.
02-28-02, 04:28 PM
#12
Anyone wanna help me lift this one ?
Chrysler M4 tank engine 5,244 (87) 30 cyl, 5 banks of 6, flathead, WWII
I have been there, I was like that little cant weigh that much,. LOL Try again, thats a heavy bastard to get out of the car w/o a hoist or picker. What I did on the first one, was jack the car way up, and put a chain on each hanger and lift it via a pipe and 2 people slowly to ground and then remove it from under the car. When putting it back in I decided I needed to break down and buy the proper equip.
Chrysler M4 tank engine 5,244 (87) 30 cyl, 5 banks of 6, flathead, WWII
I have been there, I was like that little cant weigh that much,. LOL Try again, thats a heavy bastard to get out of the car w/o a hoist or picker. What I did on the first one, was jack the car way up, and put a chain on each hanger and lift it via a pipe and 2 people slowly to ground and then remove it from under the car. When putting it back in I decided I needed to break down and buy the proper equip.
10-05-03, 05:24 PM
#14
Registered Piston Eater
I thought one of the rotaries main advantages over piston engines is the weight advantage. If the the 105hp 12A weighs 260 pounds, what kind of advantage is that?!
10-05-03, 06:55 PM
#15
standard combustion
Join Date: Dec 2001
Location: Twin Cities Minnesota
Posts: 1,374
Likes: 0
Received 0 Likes
on
0 Posts
Its a compact engine and can fit snugglely behind the front wheels center? Thus the near 50/50 weight ratio.
All I know is, I can deadlift a 12a block(short block alone)only for the engine clamped together with the tension bolts, nothing else bolted on it. I can lift it a flight of stairs from the basement and bend at the knees to put it down. It does suck to do though obviously.
The key is to have a THICK long sleave shirt, gloves and hold it as close to your body as possible, and keep your back straight up ofcourse. Some people maybe too small to attempt this. But I ONLY weigh 178lbs, and am 6'2", pretty thin but still plenty of muscle power to do this every rebuild.
All I know is, I can deadlift a 12a block(short block alone)only for the engine clamped together with the tension bolts, nothing else bolted on it. I can lift it a flight of stairs from the basement and bend at the knees to put it down. It does suck to do though obviously.
The key is to have a THICK long sleave shirt, gloves and hold it as close to your body as possible, and keep your back straight up ofcourse. Some people maybe too small to attempt this. But I ONLY weigh 178lbs, and am 6'2", pretty thin but still plenty of muscle power to do this every rebuild.
