wildcat48 Posted August 6, 2005 Share Posted August 6, 2005 Sorry for the confusion on my earlier post....Let me explain a little bit better. I have 1994 Impreza L with a 1.8L...Great car. It has 205,000 miles currently. When I purchased it in 1999 it had 113,000. To my knowledge the timing belt has never been replaced. If so I wasn't aware of it and I have never replaced it. Recently I went to Ottawa for vacation. I had an issue of the car smoking badly when ever there was a strain on the motor ie...mountain driving. So when I arrived in town I had several mechanics look at it and they all told me that the oil pump was bad and at the same time I should replace the water pump and timing belt as well as the tensioners. Underneath of my car was saturated in oil. When I got back to Maine. Mechanics gave me quotes of 900.00 to 1200.00 for replacement of the oil pump, water pump and timing belt. Inculding the two local subaru dealerships although they told me not to replace the tensioners as they don't go bad unless they break by force. I am a student in college and don't have that type of money to shell on this car so I priced the parts and found good deals at Advance Auto Parts. My question is this. While I am machanically incline and can fix cars with some ease. I have never worked on a Suburu other then basic maintence. Is this a somewhat simple task. What is the degree of difficulty. Also do I have to have any special tools for removing either the oil pump, water pump or timing belt and do I have worry about adjusting the timing to top dead centre when removing the belt. Also reading in the text...I see threads about leaving the timing cover off. Is that a wise thing to do? Also do I need any type of sealant for the mounting surfaces of the oil pump and water pump. I have a Chilton Service Book book but it is not done very well so any other info you may be able to give...I would appricate it very much Thanks Chris Quote Link to comment Share on other sites More sharing options...
idosubaru Posted August 6, 2005 Share Posted August 6, 2005 order the parts from http://www.thepartsbin.com instead of your local auto parts place if you want a great price. you do not need a new oil pump. the oil pump has a gasket and a seal and the 4 cylinders have an o-ring on them as well. if it's leaking then it's obvious one of these seals is compromised. that's about 20 dollars in parts as opposed to over a hundred for an oil pump. do not replace the gasket and not the seal...replace all the seals on the oil pump. technically you need a dab of anaerobic sealant (two dabs actually) on the oil pump. get that stuff at NAPA. it's expensive though, so if you want cheaper sealant use permatex grey but that's not what you're *supposed* to use. i use the anaerobic sealant. that being said - it is VERY possible this leak could be coming from the crank seal unless the mechanic really got a good look at it. it can be difficult to determine whether the crank seal or oil pump is leaking. if i were you i'd replace the crank seal as well or at least be prepared to replace it while you have everything off. the chiltons will help but is limited and could be wrong. the XT6 chiltons manual i believe has the wrong procedure for lining up the cam sprockets but that's a long time ago as i don't ever use that book. you can find everything you need to know from this board. the tensioners don't need to be replaced. this motor is non-interference so there is no chance of engine damage if something breaks. that being said, it's not a bad idea to replace them as the bearings can go bad. on the 4 cylinders i would personally replace them since they are so inexpensive new. but i wouldn't call that a necessary item. timing belts, water pump, oil pump, cam seals and crank seal should all be done. it's not an easy job for someone that's never done it, but it's not that hard either and it can be done a couple hours. you're getting quotes of 900 dollars because it is a decent amount of labor and not something many people do. but it's not that bad either. no special tools required. although a large breaker bar will likely be needed for getting the crank pulley off. lots of PB Blaster or Liquid Wrench will be needed for rusty bolts, those are likely the biggest pain and time consuming part of the deal. don't use WD-40 as some do, get the real stuff it works. if you spend 200 in parts you stand to save 700 dollars! sounds like a deal to me! i'm tempted to offer to do it for 500 and drive to maine. wanted to visit baxter mountain anyway! just kidding...for real there should be plenty of info on this group to get the job done. Quote Link to comment Share on other sites More sharing options...
wildcat48 Posted August 6, 2005 Author Share Posted August 6, 2005 Thanks for the help...My follow up question is if I was to replace the crank seal....Do I have to replace the front and back or can I just replace the front seal. On the oil pump. If I was to do a rebuild. Is it just three one gasket and 2 seals? Is there any where on a rebuild to get more info on a rebuild of an oil pump? Finally, My big concern is timing....I have been reading and what I can read is mostly on the 2.2 legacy...Alot of what I read is the need to lock the cam on order to prevent it from spinning? What is the easiest way to adjust the timing before demantling the vehicle. Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted August 7, 2005 Share Posted August 7, 2005 The 1.8's should be very similar if not the same procedure as the 2.2. It's pretty straight forward. The engines are non-interference, so you can spin them all which way and not damage anything. There is one o-ring you need to purchase if you take the oil pump off. It's the one between the block and oil pump. Changing the crank seal becomes A LOT easier if you remove the oil pump. Also, you should check the backing plate screws that they are tight. here's scans from the factory manual for timing belt work on the 2.2 http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt1.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt2.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt3.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt4.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt5.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt6.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt7.jpg http://www.main.experiencetherave.com:8080/subaru_manual_scans/FSM_Scans/Timing_belt8.jpg Pics from my timing belt job http://www.main.experiencetherave.com:8080/subaru/images/timingbelt Quote Link to comment Share on other sites More sharing options...
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