Why is my 4g64 w/Evo VIII Head Perfectly in Time?
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
k, one more try and I'm done....
the 64 belt is one tooth, 12mm longer to make up for the 6mm deck height up and down. from the crank gear to the cam gear only offsets 6mm of this length because the belt passes it once, obviously. soooooo 63 belt comes up 6mm short, half a tooth short, and the 64 belt comes up 6mm long half a tooth long...
clear as crystal yet or will you just believe me when I tell you I'm right...
the 94 galant is the only car mitsu put the 63 head on 64 block and for some reason those engineers decided to move the cam dowel and mark half a tooth... the answer is described above
anyone else wants to disagree get out the degree wheel and realize your wrong...
/thread
the 64 belt is one tooth, 12mm longer to make up for the 6mm deck height up and down. from the crank gear to the cam gear only offsets 6mm of this length because the belt passes it once, obviously. soooooo 63 belt comes up 6mm short, half a tooth short, and the 64 belt comes up 6mm long half a tooth long...
clear as crystal yet or will you just believe me when I tell you I'm right...
the 94 galant is the only car mitsu put the 63 head on 64 block and for some reason those engineers decided to move the cam dowel and mark half a tooth... the answer is described above
anyone else wants to disagree get out the degree wheel and realize your wrong...
/thread
such fail in here.
THERE IS NO TIMING CHANGE between using 63 belt and a 64 belt.
the 64 belt simply would have more slack on the tensioner side.
Last edited by 94AWDcoupe; Jun 12, 2012 at 01:31 AM.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
doesnt matter which belt one uses. tooth spacing remains unchanged. if its 50 teeth from crank gear to cam gear that figure does not magically change by adding a longer belt.
such fail in here.
THERE IS NO TIMING CHANGE between using 63 belt and a 64 belt.
the 64 belt simply would have more slack on the tensioner side.
such fail in here.
THERE IS NO TIMING CHANGE between using 63 belt and a 64 belt.
the 64 belt simply would have more slack on the tensioner side.
sure,
the timing changes when you move head up or down, move head up and cam gears rotate right. move head down (as in head shave) and gears rotate left.
tall 2.4 block raises head by 6mm. this will rotate gears by 3.75 degrees.
the gears rotate because belt tooth spacing/length does not change.
BELT LENGTH DOES NOT CHANGE TIMING. it only determines how much slack you have on the tensioner side . the distance from gear to gear remains a fixed constant.
dont know how else to explain it. I assure you I am correct. only way longer belt would change the timing is if you rotated the gears 1 full tooth during install. and you can do that with 63 belt!
the timing changes when you move head up or down, move head up and cam gears rotate right. move head down (as in head shave) and gears rotate left.
tall 2.4 block raises head by 6mm. this will rotate gears by 3.75 degrees.
the gears rotate because belt tooth spacing/length does not change.
BELT LENGTH DOES NOT CHANGE TIMING. it only determines how much slack you have on the tensioner side . the distance from gear to gear remains a fixed constant.
dont know how else to explain it. I assure you I am correct. only way longer belt would change the timing is if you rotated the gears 1 full tooth during install. and you can do that with 63 belt!
^^i see your point of view and it is hard to explain....i always put the belt on and line up the "inner marks" of the cam gear to the tdc mark on the rocker cover just like stock and no it dont matter if its 4g64 or 63 belt....63 belt is just simply tighter.....but i gotta ask the OP....how many times have you had your head decked? it could make a difference but it seems your lucky and you can just run stock cam gears for stealth
my heads been shaved down heaps and nearly lines up now also
my heads been shaved down heaps and nearly lines up now also
Trust me guys 94AWDcoupe knows his sh*t when it comes to this, he sleeps,eats,craps, and lives these engines for the last 15yrs and does this in his sleep. I seen this guy in the middle of the night practically time one of these cars in dark.
Last edited by Migsubishi; Jun 12, 2012 at 05:13 AM.
Ok so 94awdcoupe I'm on board with what your saying and I would have to say that your the most right out of everyone I've seen here so, with a head decked once and my block cut when it was built I found at tdc I was retarded about 2.5* on exhaust and about 2* on exhaust therefore I advanced them to line up w my timing marks on the vc
Just to give an example does this support your theory/ is this around what u would expect it to be
Just to give an example does this support your theory/ is this around what u would expect it to be
Ok so 94awdcoupe I'm on board with what your saying and I would have to say that your the most right out of everyone I've seen here so, with a head decked once and my block cut when it was built I found at tdc I was retarded about 2.5* on exhaust and about 2* on exhaust therefore I advanced them to line up w my timing marks on the vc
Just to give an example does this support your theory/ is this around what u would expect it to be
Just to give an example does this support your theory/ is this around what u would expect it to be
So when the belt Kenneth doesn't change and the distance between the can gear and the crank pulley doesn't change timing?
Welp, 94awdcoupe, are you going to call Mitsubishi and tell them they were wrong or should I?
Obviously decking the block/citing the head moves your timing and 6mm height difference moves it significantly. If anyone degree'd their cams in the right way this would be more clear
Welp, 94awdcoupe, are you going to call Mitsubishi and tell them they were wrong or should I?
Obviously decking the block/citing the head moves your timing and 6mm height difference moves it significantly. If anyone degree'd their cams in the right way this would be more clear
Anyone here have Dohc 94 gallant can gear? Take a pic next to a 63 came gear or I'll find one. If i'm not right then at last explain to me how the Mitsubishi engineers were wrong.
Spoiler alert, they're not.
Spoiler alert, they're not.
Thread Starter
Joined: Aug 2011
Posts: 2,154
Likes: 5
From: Philadelphia, PA
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Last edited by Blue91lx; Jun 12, 2012 at 09:27 AM.