12R valve clearances ?
Posted: Fri Jan 14, 2005 8:48 pm
anyone know the hot/cold valve clearances for a 12R 
Cheers.
Cheers.
Outer Limits 4x4 Board
Aussie Hardcore Wheelers
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12R valve clearances ?
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Posted: Fri Jan 14, 2005 9:02 pm
Try the yota section
Posted: Fri Jan 14, 2005 10:34 pm
TX,
Valve clearing (hot):
Intake: 0.20 mm / 0.0079 inch
Exhaust: 0.36 mm / 0.0142 inch
Cheers,
Ron
Valve clearing (hot):
Intake: 0.20 mm / 0.0079 inch
Exhaust: 0.36 mm / 0.0142 inch
Cheers,
Ron
Posted: Sat Jan 15, 2005 11:24 am
Ahh thanks, good man.
has a bit of an uneven idle/rev and the head was just whacked back on after a headgasket blowout by the previous owner.
Cheers.
has a bit of an uneven idle/rev and the head was just whacked back on after a headgasket blowout by the previous owner.
Cheers.
Posted: Tue Jan 18, 2005 10:59 am
rocknferoza wrote:Try the yota section
Everyone seems so tense and twitchy trigger fingers to enforce the new forum rules...
TECH:
The 12R Toyota motor was fitted to Daihatsu F20s.
Posted: Thu Jan 20, 2005 8:46 pm
you get that I have done the rockers, seems ok.. changed the plugs and leads as well. I guess it seems underpowered after driving my VL. but idles like a diesel sorta.. tho I think the exhaust is leaking somewhere, I need a set of extractors, would tidy it up, it always did have a tick kind of exhaust noise with it..
I have done the rockers, seems ok.. changed the plugs and leads as well. I guess it seems underpowered after driving my VL. but idles like a diesel sorta.. tho I think the exhaust is leaking somewhere, I need a set of extractors, would tidy it up, it always did have a tick kind of exhaust noise with it..Posted: Thu Jan 20, 2005 9:12 pm
Guess you already checked timing? Mine also idles quite like a diesel, even with new sparkies. After changing idle revs it runs a little better, but it's still far from a smooth idle. Did you pressuretest the exhaust? tho I dont think that's the problem. What's the ideas on the extractors? I have thought about it myself, what to do with the intake, since it is attached to the exhaust manifold. How much power could you get out of the motor?? even thought about turboing it...
Still not sure whether I'd stick to the 12r with al the goodies or swapping it for a 3y.
Cheers,
Ron
Still not sure whether I'd stick to the 12r with al the goodies or swapping it for a 3y.
Cheers,
Ron
Posted: Thu Jan 20, 2005 9:30 pm
Yeah the 12R isn't much of a motor to "soup" up, just looked @ the Dellow belhousing conversion case price again would be nice to get an 18R in.. there has been 2 complete 18Rs dumped @ my local dump in old Coronas, carb/alt/hoses etc.. *sigh*.. you normally unbolt the inlet from outlet manifolds (they should be sealed) and the extractors are usually made to fit under stock manifolds.. the pipe has dogey joins on my F20 so I'm sure it leaks (towards rear of vehicle) TURBO !! noooo... would kill the old girl.. I was reading the 18R block can accept the twincam head ? would be interesting.
would be nice to get an 18R in.. there has been 2 complete 18Rs dumped @ my local dump in old Coronas, carb/alt/hoses etc.. *sigh*.. you normally unbolt the inlet from outlet manifolds (they should be sealed) and the extractors are usually made to fit under stock manifolds.. the pipe has dogey joins on my F20 so I'm sure it leaks (towards rear of vehicle) TURBO !! noooo... would kill the old girl.. I was reading the 18R block can accept the twincam head ? would be interesting.Posted: Mon Jan 24, 2005 9:44 am
You can get the 18R-G motor that is fitted with the twin cam head - factory, also had side draft carbies.
My old 12R had a decent cam (but can't remember the specs), match ported head, extractors and free flow exhaust, nice note, but def no stump puller.
My old 12R had a decent cam (but can't remember the specs), match ported head, extractors and free flow exhaust, nice note, but def no stump puller.