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01-11-2009, 07:14 PM | #1 |
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Timing belt installation Haynes manual ARRRGGG!!!
Having great difficutly installing a timing belt on an 03 wrx and an 06 wrx. The haynes manual is completely wrong. If I set the cam gears as they show, the valves hit the piston.
Spent two hours lookn for good info here on Nasioc, but found nothing specific. All help is appreciated! Thanks! Edit:: Make sure you read through this thread to beyond where the timing belt alignment guide is shown. The image is not clear, but there is a straight line on the crank gear which points straight up when aligning the gears on each side. The woodruff key points straight down. Since I posted this thread I have heard stories of how seasoned mechanics have bent all the valves on these engines. These engines are outside of engine normalcy, so be careful, and hand turn the crank first to check your work. And then check that your marks are still aligned after hand turning it over a few times. Say, "Thank you grandpa", and get to work...
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Last edited by bangoos; 06-14-2009 at 09:16 PM. |
01-11-2009, 07:20 PM | #2 |
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The double marks on the gears line up with each other. The single marks on the gears face up and line up with the back timing cover. The crank points straight up and lines up with the mark on the block. Hope that helps.
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01-11-2009, 07:20 PM | #3 |
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the drivers side cams are under tension, so you will have to overcome the pressure of the valve springs. set the 2 cams where they should be and lock them gently with a pair of vise-grips. the passenger cams are slack and shouldn't be a problem.
this is all assuming you rotated everything to the lined up position when you 1st took off the covers. |
01-11-2009, 07:44 PM | #4 |
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timing marks on gears? Crank staight up?
The Haynes manual shows the arrow on the crank gear pointed at the mark on the crank sensor mount. The woodruf key on the crank is pointed horizontal to the drivers bank of cylinders. This could be the problem. Perhaps the manual is using the wrong reference. Using the haynes guide, the #2 piston hits the intake valve when the double cam marks are lined up as shown. (1/4" apart from each other) The cams are physically in the wrong position when using the haynes guide. The intake and exhaust lobes on #1 should be rabbit ears apart from each other, they are not. The number 2 cylinder lobes should be approx. apposite with the exhaust just closed on the back side of it's ramp, and the intake should be approching open position on the front of its ramp. Both #1 and #2 pistons are at TDC.
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01-11-2009, 07:47 PM | #5 |
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The 06 engine uses avecs while the 02 engine does'nt, But the same problem is occurring with both engines.
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01-11-2009, 07:52 PM | #6 | |
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01-11-2009, 07:59 PM | #7 |
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yes, the crank should pretty much be pointing straight up at the crank-sensor. with both double marks lined up on both sets of gears. to line up the lower gears you may need to use a mirror. ( i know i do)
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01-11-2009, 08:07 PM | #8 | |
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I can't get the link to work, but if you go to www.spt.subaru.com and then click on the installation/technical information link on the right side, there are installation instructions for the STi timing belt. It's pulled straight out of the Subaru service manual. But once I click the link, it comes up with an error message. I don't know if it's my computer or if Subaru is having technical problems with that link. |
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01-11-2009, 08:09 PM | #9 | |
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Is this correct? |
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01-11-2009, 08:10 PM | #10 |
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Well, Subaru does have the STIS (Subaru Technical Information System) website down. Thats where that link comes from. The STIS website is the Dealer-Only site for Technicians. I work at a dealership and have access to that site, but I can't get any info to come up. If you check tomorrow morning, I bet the site will be back up when the dealers open.
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01-11-2009, 08:15 PM | #11 |
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Hope this helps.
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01-11-2009, 08:20 PM | #12 | |
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I'm having trouble with links today as well. The 2 haynes manuals I am using cover from 92 through 06, and they are both inaccurate, or simply inadequate. I seem to remember seeing the correct alignment elseware, and the double marks did not align when at TDC. This is an highly strange arrangement. All the engines I have worked on in my life use TDC as reference, and therefore are straight forward in this regard. I was about ready to index the cams to get it right. |
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01-11-2009, 08:32 PM | #13 |
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01-11-2009, 08:46 PM | #14 |
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Anybody triyng to do ANYTHING to these cars without the FACTORY Service Manual should just stop right there and kiss it good buy.
It wont end well. |
01-11-2009, 09:14 PM | #15 |
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01-12-2009, 02:00 AM | #16 |
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Sounds like a terribly good idea to just post the above belt chart as a "thread of note" in one of the engine headings. No one should have to waste time like I had too, in order to find something as basic as knowing where the woodruff key should be when setting the cam gear positions.
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01-12-2009, 02:08 AM | #17 |
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not sure if this is true but one of the parts guys at a dealership said that Helms makes dealership service manuals.
can anyone verify this? |
01-12-2009, 02:08 AM | #18 |
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So according to the above chart, the woodruff key is on the bottom of the crank, while the double marks on the cam gears are aligned together on each side.
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01-12-2009, 11:41 AM | #19 |
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01-12-2009, 01:37 PM | #20 | |
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yeah its in there, have to dig a little bit, go to the maintenance section. Second post down has 3 really good links about timing belt replacement. http://forums.nasioc.com/forums/show...php?p=13628938 |
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01-13-2009, 02:19 PM | #21 |
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The agonizing ambiguities exist in that there are embossments on the crank gear. (a line, a triangular arrow, plus the woodruff key position) Then you have to know that the cam gear marks have no relevance to TDC (ZEN has imploded at this point)(I guess modernity has managed to remove religion from the Japanese as well).
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01-13-2009, 02:37 PM | #22 | |
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02-06-2009, 09:57 AM | #23 |
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this is much help. I am doing a timing belt this weekend. I think my car slip a tooth cuz its running like a dead injector at idle but goes like hell when I hit boost and its not plugs or coils.
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02-06-2009, 11:40 PM | #24 | |
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shoots exhaust gas and oil splatter out the opening, you need a new shortblock and you can forget the rest |
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