Jhan Posted May 7, 2013 Share Posted May 7, 2013 Ok, many of you may be think wtf? But hey, I am very new to DIY mechanical work. My 97 GT is no longer going in the shop, unless it it absolutely necessary. I am sick paying huge bills. So I want to change the water pump as it has failed, and obviously I need to take off the timing belt, meaning I need to crack the crankshaft sprocket off. So, can someone please tell me how I do this? I figure that I need to purchase a pressure gauge, and connect it to cylinder 1, rotate the crankshaft, and as the pressure increases, and is at it peak, the piston is at TDC? I can't see any notch on my crankshaft pully to align with the '0' on the timing indicator, so I am really at a loss??? BUT I want to be sure before I break the crankshaft sprocket free, and ruin my engine! I'd really appreciate the assistance and guidance. Thanks. Link to comment Share on other sites More sharing options...
johnegg Posted May 7, 2013 Share Posted May 7, 2013 what year, car, engine, trans? subaru is not like any other car maker. you do not want TDC. the pics below shows the correct position of the crank and the cams for removal and install of the timing belt on SOHC and DOHC engines. using the CORRECT timing HASH mark on the REAR of the crank sprocket is important. buy a manual, even a bad one will help. read all you can here and on other web sites about how to replace a timing belt. the more you read, by more different owners, the better prepared you will be. http://i249.photobucket.com/albums/gg240/johnceggleston/timingbeltdiagram.gif http://i249.photobucket.com/albums/gg240/johnceggleston/timingbeltdiagramej25.gif Link to comment Share on other sites More sharing options...
johnegg Posted May 7, 2013 Share Posted May 7, 2013 read ALL of the links below. top link has a how to with pics for a timing belt job on a SOHC with old style tensioner. read ALL other links. http://lovehorsepower.com/joomla/index.php?option=com_content&view=article&id=48:1995-subaru-legacy-outback-timing-belt-and-water-pump-replacement&catid=10:subaru-legacy&Itemid=64 . Thread discussing crank bolt removal: http://www.ultimates...ead.php?t=48091 Timing belt info, especially useful to those who might not have done it before: Motor Magazine series; starts with 2.2, then moves on to 2.5: http://www.motor.com...s/072001_08.pdf http://www.motor.com...s/082001_08.pdf http://www.motor.com...s/092001_08.pdf http://www.motor.com...s/102001_08.pdf http://www.motor.com...s/112001_08.pdf 2.5 Liter DOHC timing belt: http://endwrench.com...tReplaceF00.pdf EDIT: Thread discussing t-belt/idler/tensioner kits: http://www.ultimates...ead.php?t=95187 Link to comment Share on other sites More sharing options...
mailman Posted May 7, 2013 Share Posted May 7, 2013 fyi, the haynes manual will tell you to find TDC. Just remember; take it out in time and put it back together in time. Also check out your gaskets on the timing cover when you have it off, mine were missing altogether! If you don't have them you'll find a gap between the cover and the block where it bolts on. Check out your cam seals while you're under there as well. Invest in a pully tool to help remove and tighten the pullys. Link to comment Share on other sites More sharing options...
Jhan Posted May 7, 2013 Author Share Posted May 7, 2013 Hi John, It's a 1997, legacy GT-B twin turbo, manual transmission. Last night i was able to align the alignment marks up on the LH intake and exhaust camshaft sprokets, so i am assuming the RH camshaft sprockets are aligned too? i have not removed the covers for the RH or centre yet. Thank you so much for the links, i will read them shortly. One difficulty I had last night was finding the HASH mark on the crank pulley. Is it in fact on the sprocket, so once I remove the pulley (after aligning the Hash marks on the cam sprockets) i will see the hash mark on the sprocket and then proceed with the timing belt removal? Perhaps after reading the material I will better able to locate it? FYI, it cost between $700-$1500NZD to get a timing belt changed in Auckland, New Zealand! Hence my reason for doing it myself. My car is only worth around $1000 if I were to sell it, but it has far greater sentimental value to me as I have had her for 11years, and she is about click over 300,000 kilometres! Thanks again John. Link to comment Share on other sites More sharing options...
Jhan Posted May 7, 2013 Author Share Posted May 7, 2013 fyi, the haynes manual will tell you to find TDC. Just remember; take it out in time and put it back together in time. Also check out your gaskets on the timing cover when you have it off, mine were missing altogether! If you don't have them you'll find a gap between the cover and the block where it bolts on. Check out your cam seals while you're under there as well. Invest in a pully tool to help remove and tighten the pullys. Hi mailman, I have recently inherited a Haines manual and some excellent tools for the job, and one of those tools was a pulley lock tool(?) I will check out and see if I do have any timing cover gaskets, and also the cam seals. I have noticed a lot of coolant leakage on the LH timing cover, no doubt due to my water pump failure, or is it just the gasket? Is there an easy way to find out? Link to comment Share on other sites More sharing options...
spooln30 Posted May 8, 2013 Share Posted May 8, 2013 If your for sure the WP is bad the coolant is probably coming out of the weep hole. Link to comment Share on other sites More sharing options...
Jhan Posted May 8, 2013 Author Share Posted May 8, 2013 If your for sure the WP is bad the coolant is probably coming out of the weep hole. Yeah I am sure it's the water pump, as I constantly have to refill the radiator. I noticed a massive coolant leak on the LH side of the vehicle, and recall a puff of steam at traffic lights the same day I noticed the leakage! I didn't get a chance to take a look at things this evening due to bad/ wet weather, so will hopefully get to it tomorrow. Link to comment Share on other sites More sharing options...
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