Setting Up Cam Gears For A 2.4L

blageo23 · 06-14-2007

Alright I got some aftermarket cam gears for a 2.0. How do I set them up for a 2.4l? I know with the stock ones you are saposed to remark the cam gears. Do I do that with aftermarket ones too? Anyone got a set of 2.4 gears that I could use to mark mine? Any help would be GREAT!

**JET** · 06-14-2007

Just set them both up 1/2 tooth off.

**1ViciousGSX** · 06-14-2007

It's a 4-4.5 deg difference on each cam timing depending on deck and head surfacing. And it could be retarded or advanced, depending on how you line them up. Do yourself a favor and degree them in correctly, then remark the indicator notch on the gear.

blageo23 · 06-14-2007

So one is 4-4.5 advanced and the other is 4-4.5retarded? which is which?

**1ViciousGSX** · 06-15-2007

Quote:

Originally Posted by blageo23

So one is 4-4.5 advanced and the other is 4-4.5retarded? which is which?

It depends on how you line them up. It's basically 1/2 tooth off. So it could go either way.

blageo23 · 06-15-2007

So I did a quick paint drawing. "A" is stock, and from what Im reading here it can be either "B" or "C", Is that correct?

**1ViciousGSX** · 06-15-2007

The problem is that they can also line up like this. See the problem? It could line up 1/2 tooth in either direction. Your cam timing is still off. Trust me, 4-5 deg of cam timing can make a big difference in spool up, low and upper end power. Depending on the cams and engine, you could run the risk of valve to piston contact.

**Goat Blower** · 06-15-2007

I didn't have time to degree mine in when I built it so I just bought some stock 2.4 Galant gears til I get around to doing it right, they're cheap.

blageo23 · 06-17-2007

OK, Im getting confused. I was told that all you would have to do is take your stock cam gears to someone with 2.4 cam gears and you line up the dowels and make a mark on the 2.0 cams where the 2.4 mark is at. Is this incorrect?

So if that is correct couldnt I take my aftermarket cams for a 2.0 to someone with cams from a 2.4 and match them up and make a mark on the aftermarket cams are where the mark is on the 2.4l cams?

Super Bleeder!! · 06-17-2007

here ya go: http://www.galantvr4.org/ubbthreads/...page=2&fpart=1

blageo23 · 06-17-2007

Thats EXACTLY what I needed, thank you!!!!

blageo23 · 06-29-2007

Quote:

Originally Posted by Super Bleeder!!

here ya go: http://www.galantvr4.org/ubbthreads/...page=2&fpart=1

Can anyone confirm that that is the correct way of doing it?

**1ViciousGSX** · 06-29-2007

Quote:

Originally Posted by blageo23

Can anyone confirm that that is the correct way of doing it?

It is not the correct way of doing it. Haven't you been paying attention?

That is a "get by" way of doing it, but your cams will not be timed correctly. Both cams will be 4.5-5 deg off, in either direction. Either degree them in and remark them or buy some 2.4L gears.

2003eclipse · 06-29-2007

Pardon my iggnorance. But in that second drawing you posted vicious, when the cams are spinning that line will meet in the middle and be directly accross from another in rotation. So how does it make a difference if you line them up perfectly accross when they aren't in motion?

**1ViciousGSX** · 06-29-2007

Because when they do line up correctly, they will each be 4.5-5 deg out of time with the crankshaft. What you are missing is the reason why it's different. The timing belt for the 2.4L has one (1) extra tooth on it to make up for the higher deck the 2.4L has. Not two (2) extra teeth. Two extra teeth would make it easy and they would line up correctly. But you are having to split the difference of one tooth. So depending on which side of that one tooth you line it up on will make the difference. Now do you get it?

2003eclipse · 06-29-2007

Wow putting it into those words I understand 100% what you mean.
So hopefully blageo can get this and do it right and get that car on the road.
Blageo as excited as you are you have a large amount of money and time into your car remain patient as badly as you want to go out and rip on that thing DO IT RIGHT DO IT ONCE

**1ViciousGSX** · 06-29-2007

Glad I could help clear this up for you guys.

blageo23 · 06-29-2007

I still dont get it. Here is what im thinking and tell my why im wrong or whatnot.
Lets say I go out and buy 2.4 cams and hold them up to the 2.0 cams. What is the difference? I was under the impression that the timing marks are off/different between the 2. because to my understanding the 2.4 cam gears have the same amount of teeth(correct?). So if thats the case I could put the 2.0 gears on top the 2.4 gears and see where the marks line up and draw a line on the 2.0 cams to match where the line on the 2.4 cams are. Thus making my 2.0 cams the same as the 2.4 cams. So then I put my 2.0 cams back on and line the marks up that I made and that would make the engine have the correct timing for a 2.4l. By reading this tell me what im misunderstanding. I realize what you are saying and I get it but I dont get why im wrong.

blageo23 · 06-29-2007

Quote:

Originally Posted by 2003eclipse

Wow putting it into those words I understand 100% what you mean.
So hopefully blageo can get this and do it right and get that car on the road.
Blageo as excited as you are you have a large amount of money and time into your car remain patient as badly as you want to go out and rip on that thing DO IT RIGHT DO IT ONCE

Trust me I have learned from my last 2 engines

. Im in no hurry to get this done if I was it would be way past done by now.

**1ViciousGSX** · 06-29-2007

Quote:

Originally Posted by blageo23

I still dont get it. Here is what im thinking and tell my why im wrong or whatnot.
Lets say I go out and buy 2.4 cams and hold them up to the 2.0 cams. What is the difference? I was under the impression that the timing marks are off/different between the 2. because to my understanding the 2.4 cam gears have the same amount of teeth(correct?). So if thats the case I could put the 2.0 gears on top the 2.4 gears and see where the marks line up and draw a line on the 2.0 cams to match where the line on the 2.4 cams are. Thus making my 2.0 cams the same as the 2.4 cams. So then I put my 2.0 cams back on and line the marks up that I made and that would make the engine have the correct timing for a 2.4l. By reading this tell me what im misunderstanding. I realize what you are saying and I get it but I dont get why im wrong.

WOW, I don't know what to say!

OK, here we go. Yes you are moving the marks, but you are not moving the cam dowels to the correct position. So when you move the mark and install the belt, the gears/marks will "look" ok, but the cams are still out of time as compared to straight up. If what you suggest is that easy, Mitsu would have made one (1) set of gears for both engines with dual marks (i.e. one mark for the 2.0L and one mark for the 2.4L). BUT THEY DIDN"T. Trust me on this, I degreed my cams in my 2.4L on my 2.0L Fidanza adjustable gears and they were 4.5-5 deg off. The only way to have them installed correctly is to degree them in on adjustable gears and then remark the adjustable gears, or find/buy at set of 2.4L gears. GET NOW?