Commo_Carl
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- Oct 28, 2009
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- 252
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- Location
- Sydney,
- Members Ride
- 95 VR V6 Turbo Ute, 99 STI EJ207 GT FORESTER
Finally bought some MACE 1.9 high ratio roller rockers the other day. They are very easy to install and make a HUGE difference, especially on turbo applications.
Got them for about $600 and they state on a stock motor you will see gains from 13-16kw, id say on turbo apps you'll see more like 20-22kw
Here's a step by step guide.
TOOLS YOU WILL NEED:
-Socket Set
-Torque Wrench (absolute must)
-6mm Allen bit to fit torque wrench (must)
-6mm Allen key
1: Remove the 6 bolts from your rocker cover and take it away.
2: You will now see the stock rockers, one for exhaust and one for intake. Go through and undo the the bolts through the rocker. Try use a hex bit with only 6 faces as they grip better and also you will prob need to crack the loctite from factory.
Uploaded with ImageShack.us
3: Remove the rockers and the bolts and put them down somewhere clean.
Uploaded with ImageShack.us
4: You should now see this:
Uploaded with ImageShack.us
5: You can now remove the locating plate and put it somewhere safe.
6: Next is the removal of the pushrods. These just slide out. Pretty simple.
7: Now you can start to install your new MACE ones, I like to lube them up a bit with oil, but don't think it's necessary. MACE supply longer pushrods, new rockers, new seats, locating plates and bolts. So nothing you've removed will be re-used.
Uploaded with ImageShack.us
One thing to make sure you have right is your new pushrod alignment. You need to make sure that it is right in the middle or it can get stuck in the valley and get wrapped around the balance shaft. But dont worry its pretty hard to do, just check them with a torch. Here is a pic down the hole for the rod.
Uploaded with ImageShack.us
8: Now it's time to start installing new plate, seats and rockers. This is how they go:
Uploaded with ImageShack.us
9: Now you need to get the pre-lube supplied and apply it to any friction surfaces to stop any ware in first few secs on engine starting. This is where I put it:
Uploaded with ImageShack.us
10: Now you can go through and install all of them. Just make sure that the seat is located correctly in the locating plate and also line the rocker up central to the spring. Once they are all finger tight, go through, whilst holding rocker in right position on spring and tighten them down, compressing the spring.
11: Now they're all pretty tight, come through with your torque wrench and torque to 23ft/lbs (always check with manufacturer if not told in package) also making sure the alignment is still good.
You should now see this:
Uploaded with ImageShack.us
You can now reinstall your rocker covers and you're good to go.
Uploaded with ImageShack.us
For the first second or two you will hear ticking as there is no oil up there, if it keeps going for longer than that turn the car off and double check everything. But you should be fine.
Got them for about $600 and they state on a stock motor you will see gains from 13-16kw, id say on turbo apps you'll see more like 20-22kw
Here's a step by step guide.
TOOLS YOU WILL NEED:
-Socket Set
-Torque Wrench (absolute must)
-6mm Allen bit to fit torque wrench (must)
-6mm Allen key
1: Remove the 6 bolts from your rocker cover and take it away.
2: You will now see the stock rockers, one for exhaust and one for intake. Go through and undo the the bolts through the rocker. Try use a hex bit with only 6 faces as they grip better and also you will prob need to crack the loctite from factory.
Uploaded with ImageShack.us
3: Remove the rockers and the bolts and put them down somewhere clean.
Uploaded with ImageShack.us
4: You should now see this:
Uploaded with ImageShack.us
5: You can now remove the locating plate and put it somewhere safe.
6: Next is the removal of the pushrods. These just slide out. Pretty simple.
7: Now you can start to install your new MACE ones, I like to lube them up a bit with oil, but don't think it's necessary. MACE supply longer pushrods, new rockers, new seats, locating plates and bolts. So nothing you've removed will be re-used.
Uploaded with ImageShack.us
One thing to make sure you have right is your new pushrod alignment. You need to make sure that it is right in the middle or it can get stuck in the valley and get wrapped around the balance shaft. But dont worry its pretty hard to do, just check them with a torch. Here is a pic down the hole for the rod.
Uploaded with ImageShack.us
8: Now it's time to start installing new plate, seats and rockers. This is how they go:
Uploaded with ImageShack.us
9: Now you need to get the pre-lube supplied and apply it to any friction surfaces to stop any ware in first few secs on engine starting. This is where I put it:
Uploaded with ImageShack.us
10: Now you can go through and install all of them. Just make sure that the seat is located correctly in the locating plate and also line the rocker up central to the spring. Once they are all finger tight, go through, whilst holding rocker in right position on spring and tighten them down, compressing the spring.
11: Now they're all pretty tight, come through with your torque wrench and torque to 23ft/lbs (always check with manufacturer if not told in package) also making sure the alignment is still good.
You should now see this:
Uploaded with ImageShack.us
You can now reinstall your rocker covers and you're good to go.
Uploaded with ImageShack.us
For the first second or two you will hear ticking as there is no oil up there, if it keeps going for longer than that turn the car off and double check everything. But you should be fine.