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I am all ready to assemble if I can ever get together with SedonaBugEye to get the ring grinder?
Anybody else have one? Only need it for a few hours to do rings. I think I have "dry fit" and Mic'd everything else. The electric water pump mod sounds interesting. |
5 months and many trials and tribulations later, the motor is together and ready to go in the car today!!!
Anybody want to help me jockey it into place? I have a nice heated garage to do it in. |
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Taking a new motor out... Yes I started up my car to hear clank clank clank knock slap crack kaboom. Boy am I releaved I did not assemble my motor. Hope you have better luck! And if it was not my sons b day I would come help. |
Just about everything is in and on and I am filling it with fluids.
I need to scrounge some silicone or metal 3" tubing 6" long to connect the stock box to my intake duct. |
Well crap... It won't really start.
Appears to be firing only 1 cylinder. :( Need to do some more diagnosis but need some food and bitching time first while I think about it. |
Aaaaaaaaah!
Plug in cam sensor? J/K good luck with it. |
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No CEL, so unlikely anything electrical. After last time with the crank sensor that and cams were the first things I checked.
I was kind of afraid of this actually. I think I may have bent valve(s) when I was putting on the timing belt and have low or very low compression on the driver side bank. To start with I mixed up the TDC mark and the timing belt installation mark. So what I thought was valve spring resistance was piston contact. I did not push very hard, but I guess it may have been hard enough. :( I'll check compression in the AM. If that is it, I get to decide to pull the motor again or swap the head in the car. :( |
Pull the motor. Swapping a DOHC head in-car would be a nightmare.
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Subaru valves have very thin stems. Doesn't take much to bend them...
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Was it improperly installed tensioner or guides not adjusted properly? I don't know how you jump teeth without one of those being wrong.
That was one thing I was super careful about. compressing my tensioner took about 10 minutes doing it by the book and I did the guides with feeler gauges and a couple minutes each to get them good. |
OK, Good but confusing news...
Compression test results from a stone cold never broken in engine at 45-50PSI oil pressure: 1=102 & combustion has occurred. 2=91 No sign of combustion 3=97 No sign of combustion 4=99 No sign of combustion I was right, 1 cylinder was firing. Little woot In theory, I think cylinder 4 should be the one that I should be worried about since isn't cylinder 4 also at TDC when Cylinder 1 is and therefore the one the intake valve could be bent on from contact during timing belt install? That 91 is a little low but I don't think too low unless it is the cylinder that is also at TDC when one is. So now what? No CELs on attempting to start. Fuel is getting to at least the third one along the rails if I have the order right. The only CELs I have disabled relate to TGVs and O2 sensors. In theory C&C just(4-5 months ago) cleaned and flow tested all injectors and I would assume they would throw a CEL if the ECU could not talk to them. odds of 3 coil packs failing simultaneously = near zero. WTF!!! 3 bad brand new NGK spark plugs? Guess I can check center continuity. |
Follow up to above...
Dang, looking at a crank, it looks like 1&2 are at TDC at the same time, not 1&4. :( Might have slightly belt that intake valve on C2. Will have to do a leak down test but that doesn't explain why it isn't firing on anything but C1. All plugs show ~5KOhm resistance which matches old ones. What are the best ways to check for spark and fuel presence? |
If there's no carbon residue and no wetness on the plugs, you're not getting fuel to those cylinders. Did you double check the fuel supply routing?
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Carbon = combustion. None
Wetness. Will have to try that. Pulled fuel relay and fired on 1 cylinder before opening up for comp check but no obvious residue of any kind on them. Pressure line with angled gizmo closest to strut top goes on top, return next, smaller canister line on bottom. I had used the fuel pump to drain old fuel so I know which is pressure. Cylinder 1 gets fuel after 2 & 4 and 3 is last before the regulator so if 1 is firing, others should have fuel, just don't know if injectors are firing, but wouldn't it throw a CEL if they were not talking to the ECU? I don't know If there is some special way to prime an injector. How to test spark? Can I just ground the plugs. Don't want to hurt the packs or anything else. I can't imagine it is possible to put 3 coil packs on with the "boot" missing the plug and have them go on and off easily and bolt line up and finger tighten easily is it? |
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Been away since last week so no progress. Will be testing more later today.
Left and right coil packs???? Will have to check part numbers, but I think they are all the same. Not sure how you could mess them up so only 1 fires though. I also have 4 more from the '04 motor I could swap in. It probably wouldn't hurt to check fuel pressure too, but again if it was low why would 1 be firing. |
I have some sidefeed sti injectors u can borrow to trouble shoot of u believe it might be an issue. Let ne know
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Any chance you've got like the #2 and #4 coilpacks swapped? That might cause #1 to fire, #3 to misfire, and #2 and #4 are just totally out of time? (I'm just guessing... I don't remember the firing order off hand to know if that's really probable.) |
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