steve56

Yes The Subaru parts database has unique part numbers for the 05 Impreza and 05 Legacy right camshaft pulleys and unique part numbers for .the 05 Impreza and 05 Legacy tbelts. The Gates tbelt descriptions are more vague.

Went into the Subaru dealer and got my right camshaft gear verified as belonging on a 05 Impreza .They didn't have a left cam gear in stock, so I couldn't verify that one.against mine. I had previously tried two different right camshaft gears and both seemed to make the tbelt too tight.. My two left cam gears seem to be identical. I will try installing the tbelt again tomorrow.

Have ej25 block,crank sprocket and cam sprockets from 2005 Impreza. with ej25 heads from a 2005 Legacy. The Impreza timing belt is too tight to install. Subaru calls for a 13028aa231 tbelt for a 05 Impreza and a 13025aa21b for a 05 Legacy. Since Im using the 05 Impreza block, crank and cam sprockets it seems like the tbelt from a 05 Impreza would work. There must be the some difference between the 2005 Legacy and Impreza heads, crank or cam sprockets. Anyone know what that difference is? Just ordered the 05 Legacy tbelt.

Still need some guidance as to where the cam arrows should be pointing before adjusting valves.Since the timing belt is disconnected, its not the usual 12, 3, 6, 9 arrow positions,. Not sure where the low spot on cam is.

Hi its a ej253 non avls. My assumption is the same procedure would be valid for avls heads, since the FSM has the same procedure for avls and non avls heads while heads are on the engine.

Want to adjust valves while heads are on the work bench. Don't see any instructions in the FSM.. Just got heads resurfaced and installed cam shafts. All valves are closed. Therefore rocker arms should be riding on the lowest part of camshaft. Anyone else use this method for valve adjustment?

Just picked up set of heads at machine shop.Been using them for years. Asked owner what they use to reseal the cam plates. To my surprise it was Clear Permatex Silicone RTV. Anyone use the Clear Permatex instead of instead of Fuji Bond, Ultra Grey ect.

I meant with this set of heads. I've already block sanded them..Can I remove the debris from the block sanding myself or do they need to go to the machine shop?

Thanks GD. What would you recommend for this set of heads. Bring them in and have them disassembled cleaned and milled or finish doing the heads myself? I'm still a little confused on what I need to clean on the heads if I finish the job myself. I've used the same machine shop for yeas and never asked if they are taking the cams out before resurfacing them. I will be verifying their procedure on Monday.

That is sound advise. I'm using non mls Subaru oem head gaskets. SSI commented that my bigger issue was debris falling into the oil passages leading to the cams. I thought hot water, dawn and good rinse in utility sink would get rid or all the debris. However I've never tried this method before.Yes, my method seemed a little sketchy, that's why I posted the topic.

Thanks for the good advice. Think I will take the cams out and check the bearings and the oil passages on this set of heads. I'm pretty sure my machine shop doesn't pull the cams and valves out unless they are pressure testing the heads, although I never ask them. I seem to always end up with a mess of ultra grey when reinstalling the cam plates. I've only used ulta grey in the in the 13 oz tube. Any advise on a better method of reinstalling the cam plates would be greatly appreciated.

Doing head gaskets on 2005 ej25. One of heads had a migrated exhaust valve guide.Using a different set of known good heads.Cleaned the head surface with 220 then 400 grit sandpaper on long sanding block. Washed and rinsed the heads in utility sink and dried with compressed air. Is that a valid head cleaning method? Also wanted to know how the oil flows from the oil pick up tube, thru the oil pump, block and heads then back into the oil pan.

Thank you sir. I thought that was the case. Needed to verify before installing engine.

Some engine mounts have one bolt that goes thru the cradle and some have a bolt and a metal numb.. Are they interchangeable?

Thanks for the help guys. Appreciate it.

Need to need to determine which drivers side cam sprocket goes on 2008 Subaru Impreza RS engine. I have several drivers side cam sprockets and forget which one goes with this engine..

Thanks for clearing things up,.and the double 180 degree loosening misinformation too. Do those torque specs also apply to the late 1990s and early 2000s ej22/25 ? Can head bolts be cleaned with a wire wheel on bench grinder ?

Doing head gaskets on 08 Impreza..There are two different sets of installation instructions. The instructions I'm used to are middle two head bolts to 25 ft/lbs, outer four head bolts to 15 ft/lbs ,along with a couple of additional angle torques.. The other set of instructions are all six head bolts to 31 ft/lbs, along with a couple of slightly different angle torques. Which installation instruction set should be used for 08 Impreza ? Also I've seen YouTube videos where the 21 ft/lbs then 51 ft/lbs torque and then two 180 degree loosening steps are omitted. The rational is these steps are for head bolts stretching, and if you are reusing the head bolts ,they are already stretched. Which method is correct, re stretch the head bolts or not re stretch the head bolts ?

Not sure what bolts to use to fasten pickup tube and the other piece in picture. Oil pan bolts fit the holes, but don't remember what the original bolts are.

So how do I determine what oil pickup tube to use.

Have several pans, pickup tubes and dip sticks. How do I determine which ones go together ?

Have jdm ej25 block. Are ej25 oil pans and pick up tubes interchangeable?

So are the arrow marks for tdc at 12 and 3 for the right head and at 6 and 9 for the left head?

What marks do I use for adjusting valve clearance. Rally Suby! suggested my exhaust might need to be adjusted.

Last fall bought 2003 ej253 that came from Copart car..The donor car was hit in front.. Engine damage is broken drivers side timing belt cover.Timing belt is still on with all timing marks in correct position. Just did a leak down test on engine.Getting 80 percent leak down on all four cylinders at exhaust ports. No piston ring leaks and all four spark plugs have an even ware pattern with no oil fouling. I want to get correct diagnosis. without pulling the heads, because I'm selling the engine. Doing complete rotation of engine from crank bolt, I'm getting 80 percent leakage thru exhaust ports on all cylinders.So I will do valve lash adjustment on all intakes and exhaust and redo test..