Welcome to Ultimate Subaru Message Board, my lurker friend!
|Welcome to Ultimate Subaru Message Board, an unparalleled Subaru community full of the greatest Subaru gurus and modders on the planet! We offer technical information and discussion about all things Subaru, the best and most popular all wheel drive vehicles ever created.
We offer all this information for free to everyone, even lurkers like you! All we ask in return is that you sign up and give back some of what you get out - without our awesome registered users none of this would be possible! Plus, you get way more great stuff as a member! Lurk to lose, participate to WIN*!
* The joy of participation and being generally awesome constitutes winning
** Not an actual guarantee, but seriously, you probably won't regret it!
Serving the Subaru Community since May 18th, 1998!
Properly installing timing belts on EA82?
Posted 21 October 2003 - 12:23 AM
Any info would be appreciated.
Posted 21 October 2003 - 04:27 AM
The job is not hard, it take me about 4 hours and I reseal the oil pump and replace the cam seals and O rings.
Posted 21 October 2003 - 07:28 AM
Posted 21 October 2003 - 10:43 AM
Posted 21 October 2003 - 12:54 PM
Summary, I put 2 in wrong, even knowing better the second time (but still trying to interpret the Hanyse manual). One other pull in the drive that someone else also got wrong.
Should not hurt anything if you get one cam off 1/2 turn, but it will run terrible. Test run before putting everything back on that you would have to remove IF you got it wrong.
I still think the "rotate crank shaft 360o" is a crock!. There's no reason to do this. Just put both cams in THE RIGHT PLACE to begin with and be done with it.
Posted 21 October 2003 - 09:58 PM
They were new and lasted 2 months. He put a new (second) set 2 days ago - and it drove for an hour. Same thing for second time. Had to walk to a pay phone for miles. In retrospect, I wish I had done the whole thing myself even though it would have taken me longer.
Anyway, I am really frustrated. Is there a web page or something which is explicit about timing belts. He obviously doesn't know how to install them if I experienced 2 failures and I know even less than that.
Posted 21 October 2003 - 10:09 PM
Perhaps new tensioner pulleys are in order.
And sorry, I don't know of any website that will give you explicit instructions
Posted 21 October 2003 - 11:01 PM
Personally I do rotate the engine simply because there is no positive mark at 6 o'clock to line up the cam. I think it's easier to flop the engine over once than do the job twice:-)
Posted 21 October 2003 - 11:04 PM
Posted 22 October 2003 - 12:12 AM
Originally posted by XSNRG
I have a copy of the instructions from the FSM I just threw in the garbage. I could yank them out and fax or mail to you.
Hey, I would take you up on those instructions if you want to mail them. I'm looking to do my first belt job and need all the help I can get. My address:
4426 147th Pl NE #A-11
Bellevue, WA 98007
Posted 22 October 2003 - 09:32 AM
Maybe we could scan it in to the USRM?
Posted 22 October 2003 - 07:15 PM
It seems that I do remember timing marks in the 6:00 position on one or both heads timing cases. What is it, RH (as looking at front of engine) goes to the 12:00 and LH goes to 6:00 position with out the 360o rotation? Or is it both go to 12:00?
"Subaru. Inexpensive and built to stay that way!" (As long as you don't have to got to the dealer. I'm sure that was in the fine print somewhere.)
Posted 22 October 2003 - 10:08 PM
Yes, I desperately need the instructions also! You have PM with my address. I will reimburse you for shipping.
Soo.. you never actually said what is happening.. Are the new belts breaking?
Yes! They are breaking as in "It would momentarily hault rotation and in turn, rip off a series of belt teeth" I've seen them.
Posted 22 October 2003 - 10:40 PM
Posted 22 October 2003 - 11:48 PM
So why exactly are these timing belts breaking? does this sound like something typical that can happen? Something to do with tension?
Posted 23 October 2003 - 08:51 AM
I just changed the belts on one of my RX's and the crank gear were installed wrong. There are two gears and they should both have the flange towards the back of the engine. Mine had one flange towards the rear and one towards the front. The belts were rubbing together. There was a considerably loss of belt material and a huge mess inside the timing covers but no breakage.
Posted 23 October 2003 - 08:54 AM
Definately check your adjusters and idler too, as suggested above...Also check to make sure the cam gears are fully seated on the end of the cams.
Posted 23 October 2003 - 08:18 PM
Posted 23 October 2003 - 09:27 PM
The numbers you give are correct for belt tension but not for torque spec.
The spec I quoted is the torque you set the torque wrench to and then using that torque wrench hooked to the cam sprocket spanner, you would apply that torque to the cam spocket pulling the belt to that torque and then tighten the tensioner bolts. After doing this you could then use a belt tension measuring tool (I don't have one of these) to verify that the torque wrench applied the correct tension. If the mech that did his car used those tension specs for torque, I think this would more than likely cause the belts to break, soon, not to mention possibly damage to cam bearing, tensioners and the idler (although probably not, IMO, due to the short time it ran).
Boz, I think you may have solved the mystery!
I'll quote both these torque specs for those interested.
When both timing belt and head gasket are new, torque to cam sprocket=17-19 ft lb
Other than above=10-12 ft lb
Posted 23 October 2003 - 09:31 PM
Posted 24 October 2003 - 12:09 AM
0 user(s) are reading this topic
0 members, 0 guests, 0 anonymous users