Ok so I been thinking that once I get my car running/on the road, I might consider trying the noisy gears. I have read that the timing cover needs to be modified. Once it is modified, can I go back to the double roller using the same cover?
Yes... but it wont have the bar that keeps oil off the seal... That missing bar is what makes them noisey - thats what I heard...
Yes. When I went back to a standard timing set,I just replaced the seal with a new one.Also check and make sure the balancer hub,doesn't have a deep groove worn into it.If it does,get a repair sleeve,or a new balancer.I've done it a few times,and never had any leaks.
The bar is removed just for clearance of the idler gears.The noise they produce (quiet or noisy)depends on how the gears are cut.
Gene... I have this set up on my Sprint. Its a pete jackson and it supposed to be LOUD... It isnt, straight cut gears and all.You can barely hear it till you wind the engine up to 4 grand. You have to grind the oil chute off the front cover to clear the idler gears.You can see the ground down area on the cover where the chute used to be (I hope). Thery are great for keeping timeing dead nuts...Especially at high RPM. Enjoy!!! PS: I have no oil leakage issues at the front seal with this set up.The car is driven as much as weather will allow as well.
Is it just me, or does that center gear on the left look like it isn't meshing as deeply as it should? Second picture.
Yes it does mesh less than the other but the slack goes away when the engine is running. Its the whole "ones a drive gear the other is a driven gear thing" the lash/slack is taken up when its all in motion.
That is great to know, thanks. Thanks for showing and telling. Looks like I need to go ahead and plan this.
What keeps those dual idler gears from walking their way out and hitting the inside of the timing cover?
I am also thinking that since I will be modding the cover, is there any way to mod it to help keep it from leaking? I am thinking about scoring a groove into the lip and using some good quality sealer. Thoughts?
Just glue the gasket to the cover or the block with a contact cement of some sort Gene and install it dry. I have never had one leak this way.Done plenty of em too.
So do the idler gears float to and fro?! I don't know if I would like that. I would think they need to stay centered somehow. I done plenty also. I have done them dry and they leak. I have tried silycone and it leak. It was better dry but just don't want ANY leak. I have been using this gaskett maker made by Toyota on everything since I seen how good it works. I will be using that and cutting a groove in the cover...we'll see how that does. What erks me the most is the coolant puddles at the top in those cubbies. Still would like to know what holds them gears lined up first tho.
Rotation keeps it towards the block.When you get a kit,it comes with another shaft,usually longer,(if needed)so you can adjust the idler assembly,to keep in centered.You could actually run an engine without the cover and the gears would stay put.
