4g63 belt.

 

I used a 2.4 belt but I have adjustable cam gears. With the 63 belt you have to adjust them 3 degrees retard I believe to compensate for the deck height.

 

mine has a evo 9 belt on it. thats what jacks (who built it) put on it.

 

So is there a reason why the 1994 Galant GS belt wouldn't work with stock cam gears? I understand most people just use adjustable gears to get around the length issue (and I understand the Evo IX timing belt is a nice piece), but what's stopping me from using plain old standard cam gears with the DOHC 4G64 belt?

 

I had an answer for you but then I realized you have a evo x. But if I had to guess it would be because of the way stuff works. If you were going to do a 2.4 on a x I would think you would use one of the following blocks, can anyone confirm this.


2007 Mitsubishi Delica
2008 Mitsubishi Lancer
2008 Citroën C-Crosser
2008 Peugeot 4007
2009 Mitsubishi Lancer Sportback GTS
2009 Mitsubishi Lancer GTS
2009 Mitsubishi Outlander (Facelift Europe)
2010 Mitsubishi Galant
2013 Mitsubishi Lancer GT Manual
2015 Mitsubishi Lancer

 

I'm not trying to replace my X's 4B11, the question is in reference to a DOHC head swapped 4G64 8G Galant. Everyone seems to just say use an Evo IX belt and adjust your timing gears to make it work, but if the adjustable gears aren't necessary with a 1994 Galant GS belt that may be a superior option. I'm just curious if there's any reason why one can't run standard Evo VIII cam gears on a DOHC 4G64 with a 1994 Galant GS timing belt.

 

alot of good info

 

After thinking about it all day long it comes down to the head won't fit the correct way onto the gs block. The turbo and exhaust mani are a 180 from the current setups. So with that said the timing belt may not work being tooth count may be different. I do not know for sure but if I had to guess that would be my reasoning. Depends on deck height too. If everything thing were the same theoretically it would work. Another thing I would worry about is how different the cam gears are from another. If they are smaller or larger or as I said above tooth count is different then your centers will be different when trying to setup tdc.

 

the issue is not the belt but the position of the tensioner pulley and the cam gears.. Due to higher deck the distance between the bottom pulley and cam pulleys is different, and it cant be rounded off to a whole tooth... that is the problem..
If you had g64 specific camwheels then it would fit perfectly.. in fact it would be good to check if something like g64 gallant GDI pulleys are the answer..

 

Right, so on the 4G63 side of the house DSM guys have been successfully running Evo IX belts for years (for that matter, 1G/2G DSM timing belts have the same part # as the Evo 1-8 MD326059). However anytime someone talks about putting an Evo head on a 4G64 block the timing solution that's typically given is to use a Evo belt and then use an adjustable cam gear to "fix" the deck height issue.

However there is a factory DOHC 4G64, the 1994 Galant GS came with a DOHC head on a 4G64 block, and therefore I assume the belt from the '94 Galant GS would be a drop in fit for this application without having to resort to adjustable cam gear trickery. Now if everyone's suggesting the Evo IX belt because they want to use the kevlar reinforced beauty the IX came with I understand, however is there anything stopping me from going to my local auto parts store and buying whatever Gates belt they stock for a 94 Galant GS and slapping it on my DOHC 4G64 with stock Evo VIII cam gears without futzing around with the adjustable gears?

 

I will repeat.. the issue is not belt length.. you can use any belt and you will always have a slight shift in the cam gears. both belts have identical tooth spacing, and the problem is that the higher deck height means that the cams are futher away from crank. Unfortunately that extra length does not correspond to a distance of whole tooth spacing.. so you are not one tooth off (which would not be a problem) but you are half tooth off..
Maybe if you used gallant cam gears..?

You can try gallant cambelt but it will still have the same problem..

I will check the gallant gdi cam gears.. maybe those are half tooth off..

 

Tracking now, it's a GEAR problem, not a belt problem. In case anyone's wondering, the Galant GS belt is exactly 1 tooth longer than it's Evo cousin, and Gates makes Racing Belt versions of both (T256RB-4G64 and T167RB-4G63). I will look for 1994 Galant DOHC gears, but I'm not going to hold my breath on finding one-model-year-only parts from over 20 years ago...

 

I have a set of gallant GDI cam sprockets and those look to be exactly half tooth off... so might do the trick..

 

Be careful on that statement. Thats just where the mark is on the tooth. The actual dowl hole (that lines up on the cam) can be in the same place on both gears. The reason for the mark is where they decided to put the mark on the engine side to line them up. I have seem this on other DSM stuff. The gears are the exact same size and just the mark is off. Evo is vertical and DSM is facing each other. They are the same gears but the DSM has 2 marks on it.

For the belt length issue, the 64 belt advances the timing by 3.5 degrees and the 63 belt retards the timing by 3.5 degrees. 1 tooth is 7 degrees and either belt puts it roughly a half tooth off. You need to the adjustable gears to set the cam timing back to zero.

The picture you posted with a half tooth off with the marking would put the cams off by 3.5 degrees if you lined it up with the cover. If you look at the dowl hole, its does not line up directly with the timing mark.